Maintenance and Construction Management

The Maintenance and Construction Management Subsystem monitors and manages roadway infrastructure construction and maintenance activities. Representing both public agencies and private contractors that provide these functions, this subsystem manages fleets of maintenance, construction, or special service vehicles (e.g., snow and ice control equipment). The subsystem receives a wide range of status information from these vehicles and performs vehicle dispatch, routing, and resource management for the vehicle fleets and associated equipment. The subsystem participates in incident response by deploying maintenance and construction resources to an incident scene, in coordination with other centre subsystems. The subsystem manages equipment at the roadside, including environmental sensors and automated systems that monitor and mitigate adverse road and surface weather conditions. Additional interfaces to weather information providers (the weather service and surface transportation weather service providers) provide current and forecast weather information that can be fused with other data sources and used to support advanced decision support systems that increase the efficiency and effectiveness of maintenance and construction operations. The subsystem remotely monitors and manages ITS capabilities in work zones, gathering, storing, and disseminating work zone information to other systems. It manages traffic in the vicinity of the work zone and advises drivers of work zone status (either directly at the roadside or through an interface with the Information Service Provider or Traffic Management subsystems.) It schedules and manages the location and usage of maintenance assets (such as portable dynamic message signs). The subsystem manages the repair and maintenance of both non-ITS and ITS equipment. Construction and maintenance activities are tracked and coordinated with other systems, improving the quality and accuracy of information available regarding closures and other roadway construction and maintenance activities.

Security Considerations

The security considerations for the Maintenance and Construction Management Subsystem relate to the physical security of transportation assets and maintenance personnel. This subsystem is involved in coordinating the response to certain incidents by dispatch, routing and allocating maintenance vehicles and other resources in coordination with other centre subsystems. This subsystem collects and processes environmental sensor information from the roadside that might contribute to the detection, classification and response to security threats. In general, the Maintenance and Construction Management Subsystem’s information security needs to have a relatively low degree of confidentiality in order to safeguard the information. In addition, it is important that the information is available and has integrity in order to prevent improper reporting of assets needed to support emergencies.

Functionality: Equipment Packages and PSpecs

• MCM Automated Treatment System Control
  
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.2.6.1 - Operate Roadway Automated Treatment System
  
  
• MCM Data Collection
  
  • 9.2.7 - Manage M&C Archive Data
  
  
• MCM Environmental Information Collection
  
  • 9.4.2 - Collect Environmental Data
  • 9.4.5 - Provide M&C Centre Personnel Interface for Environment
  
  
• MCM Environmental Information Processing
  
  • 9.2.2 - Status Current M&C Activities and Transportation Infrastructure
  • 9.4.2 - Collect Environmental Data
  • 9.4.3 - Process Environmental Data
  • 9.4.4 - Disseminate Environmental Information
  • 9.4.5 - Provide M&C Centre Personnel Interface for Environment
  
  
• MCM Incident Management
  
  • 9.1.4 - Manage M&C Vehicle Fleet
  • 9.1.7 - Process Road Network Information
  • 9.2.2 - Status Current M&C Activities and Transportation Infrastructure
  • 9.2.3.4 - Manage M&C Resource Needs
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Infrastructure Monitoring
  
  • 9.2.3.2 - Determine Roadway M&C Needs
  • 9.2.3.7 - Process Environmental Probe Data for Maintenance
  • 9.2.6.3 - Operate Infrastructure Monitoring Devices
  
  
• MCM Maintenance Decision Support
  
  • 9.2.3.3 - Provide Maintenance Decision Support
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Roadway Maintenance and Construction
  
  • 9.1.4 - Manage M&C Vehicle Fleet
  • 9.2.1 - Schedule M&C Activities
  • 9.2.2 - Status Current M&C Activities and Transportation Infrastructure
  • 9.2.3.2 - Determine Roadway M&C Needs
  • 9.2.3.4 - Manage M&C Resource Needs
  • 9.2.3.5 - Collect Roadside Equipment Status
  • 9.2.4 - Manage M&C Map Data
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.2.6.3 - Operate Infrastructure Monitoring Devices
  • 9.2.8 - Manage M&C Materials
  • 9.4.2 - Collect Environmental Data
  
  
• MCM Speed Monitoring
  
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.3.3.2 - Monitor Vehicle Speed in Work Zone
  
  
• MCM Transportation Operations Data Collection
  
  • 9.1.7 - Process Road Network Information
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Vehicle and Equipment Maintenance Management
  
  • 9.1.5 - Schedule M&C Vehicle Maint
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Vehicle Tracking
  
  • 9.1.3 - Track M&C Vehicles and Equipment
  • 9.2.4 - Manage M&C Map Data
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Winter Maintenance Management
  
  • 9.1.4 - Manage M&C Vehicle Fleet
  • 9.1.7 - Process Road Network Information
  • 9.2.1 - Schedule M&C Activities
  • 9.2.2 - Status Current M&C Activities and Transportation Infrastructure
  • 9.2.3.1 - Determine Winter Roadway Treatment Needs
  • 9.2.3.4 - Manage M&C Resource Needs
  • 9.2.4 - Manage M&C Map Data
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.2.8 - Manage M&C Materials
  • 9.4.2 - Collect Environmental Data
  
  
• MCM Work Activity Coordination
  
  • 9.2.1 - Schedule M&C Activities
  • 9.2.2 - Status Current M&C Activities and Transportation Infrastructure
  • 9.2.3.4 - Manage M&C Resource Needs
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  
  
• MCM Work Zone Management
  
  • 9.1.7 - Process Road Network Information
  • 9.2.1 - Schedule M&C Activities
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.3.1.1 - Operate Work Zone Devices
  • 9.3.2.2 - Collect Work Zone Data
  • 9.3.2.3 - Generate Work Zone Information for Distribution
  
  
• MCM Work Zone Safety Management
  
  • 9.2.5 - Provide M&C Centre Personnel Interface for Maint
  • 9.3.1.1 - Operate Work Zone Devices
  • 9.3.2.2 - Collect Work Zone Data
  
  
• Roadway Micro Prediction for Maintenance
  
  • 9.4.2 - Collect Environmental Data
  
  

Inputs/Outputs: Architecture Flows and Data Flows

Alerting and Advisory Systems > Maintenance and Construction Management

• alerts and advisories - Assessments (general incident and vulnerability awareness information), advisories (identification of threats or recommendations to increase preparedness levels), and alerts (information on imminent or in-progress emergencies). This flow also provides supporting descriptive detail on incidents, threats, and vulnerabilities to increase preparedness and support effective response to threats against the surface transportation system.
  Data Flows:
  • faas-alerts_and_advisories_for_maint
  
  

Archived Data Management Subsystem > Maintenance and Construction Management

• archive requests - A request to a data source for information on available data (i.e. "catalog") or a request that defines the data to be archived. The request can be a general subscription intended to initiate a continuous or regular data stream or a specific request intended to initiate a one-time response from the recipient.
  Data Flows:
  • m_and_c_archive_request
  
  
• archive status - Notification that data provided to an archive contains erroneous, missing, or suspicious data or verification that the data provided appears valid. If an error has been detected, the offending data and the nature of the potential problem are identified.
  Data Flows:
  • m_and_c_archive_status
  
  

Asset Management > Maintenance and Construction Management

• asset damage assessment - Information indicating the damage sustained by transportation assets, derived from aerial surveillance, field reports, inspections, tests, and analyses.
  Data Flows:
  • fam-asset_damage
  
  
• asset inventory - Information on pavement, bridges, signs and other assets. This includes asset location, installation information, materials information, vendor/contractor information, current maintenance status, and a variety of other information (e.g., video logs) that define the transportation infrastructure.
  Data Flows:
  • fam-asset_inventory
  
  
• asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard height, width, and weight restrictions by facility as well as special restrictions such as spring weight restrictions and temporary bridge weight restrictions.
  Data Flows:
  • fam-asset_restrictions
  
  
• maintenance and repair needs - Recommended strategies and schedules for maintenance of the transportation infrastructure.
  Data Flows:
  • fam-asset_maint_and_repair_needs
  
  

Emergency Management > Maintenance and Construction Management

• alert notification - Notification of a major emergency such as a natural or man-made disaster, civil emergency, or child abduction for distribution to the public. The flow identifies the alert originator, the nature of the emergency, the geographic area affected by the emergency, the effective time period, and information and instructions necessary for the public to respond to the alert. This flow may also identify specific information that should not be released to the public.
  Data Flows:
  • wide_area_alert_notification_for_maint
  
  
• emergency plan coordination - Information that supports coordination of emergency management plans, continuity of operations plans, emergency response and recovery plans, evacuation plans, and other emergency plans between agencies. This includes general plans that are coordinated prior to an incident and shorter duration tactical plans that are prepared during an incident.
  Data Flows:
  • disaster_response_plan_coordination_to_m_and_c
  • evacuation_plan_coordination_to_m_and_c
  
  
• evacuation information - Evacuation instructions and information including evacuation zones, evacuation times, and reentry times.
  Data Flows:
  • evacuation_information_for_m_and_c
  
  
• incident information - Notification of existence of incident and expected severity, location, time and nature of incident. As additional information is gathered and the incident evolves, updated incident information is provided. Incidents include any event that impacts transportation system operation ranging from routine incidents (e.g., disabled vehicle at the side of the road) through large-scale natural or human-caused disasters that involve loss of life, injuries, extensive property damage, and multi-jurisdictional response. This also includes special events, closures, and other planned events that may impact the transportation system.
  Data Flows:
  • incident_info_from_emerg
  
  
• incident response status - Status of the current incident response including a summary of incident status and its impact on the transportation system, traffic management strategies implemented at the site (e.g., closures, diversions, traffic signal control overrides), and current and planned response activities.
  Data Flows:
  • incident_response_status_from_emerg
  
  
• maint and constr resource request - Request for road maintenance and construction resources that can be used in the diversion of traffic (cones, portable signs), clearance of a road hazard, repair of ancillary damage, or any other incident response. The request may poll for resource availability or request pre-staging, staging, or immediate dispatch of resources.
  Data Flows:
  • roadway_maint_action_req_from_emerg
  • m_and_c_resource_request_from_emerg
  • m_and_c_evacuation_resource_request
  
  
• security field equipment status - Identification of security sensors and surveillance equipment requiring repair and known information about the associated faults.
  Data Flows:
  • security_surveillance_equip_status_for_m_and_c
  • security_sensor_equip_status_for_m_and_c
  
  
• threat information - Threats regarding transportation infrastructure, facilities, or systems detected by a variety of methods (sensors, surveillance, threat analysis of advisories from outside agencies, etc.
  Data Flows:
  • threat_info_for_maint
  
  
• transportation system status - Current status and condition of transportation infrastructure (e.g., tunnels, bridges, interchanges, TMC offices, maintenance facilities). In case of disaster or major incident, this flow provides an assessment of damage sustained by the surface transportation system including location and extent of the damage, estimate of remaining capacity and necessary restrictions, and time frame for repair and recovery.
  Data Flows:
  • infrastructure_integrity_status_for_maint
  • m_and_c_transportation_system_status_for_evacuation
  • m_and_c_transportation_system_status_for_disaster
  
  
• work plan feedback - Comments and suggested changes to proposed construction and maintenance work schedules and activities. This information influences work plan schedules so that they minimize impact to other system operations and the overall transportation system.
  Data Flows:
  • m_and_c_plan_feedback_from_emerg
  
  

Equipment Repair Facility > Maintenance and Construction Management

• maint and constr equipment repair status - Current maintenance and repair status of the maintenance and construction vehicle fleet and other support equipment. This information includes a record of all maintenance and repair activities performed.
  Data Flows:
  • ferf-fleet_maintenance_record
  • ferf-equipment_repair_status
  • ferf-equipment_status_for_tracking
  • ferf-current_fleet_maintenance_status
  
  

Information Service Provider > Maintenance and Construction Management

• field equipment status - Identification of field equipment requiring repair and known information about the associated faults.
  Data Flows:
  • field_equipment_status_from_isp
  
  
• road network environmental probe data - Aggregated vehicle probe information that can be used to estimate current environmental conditions. Collected information would include measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, ALB status, and other collected vehicle system status and sensor information.
  Data Flows:
  • env_probe_info_from_isp_for_maint
  
  
• transportation information for operations - Information on the state of transportation system operations including traffic and road conditions, advisories, incidents, transit service information, weather information, parking information, and other related data.
  Data Flows:
  • transportation_information_for_maint_operations
  
  

Maintenance and Construction Administrative Systems > Maintenance and Construction Management

• maint and constr administrative information - Administrative information that is provided to support maintenance and construction operations. This information includes: equipment and consumables resupply purchase request status, personnel qualifications including training and special certifications, environmental regulations and rules that may impact maintenance activities, and requests and project requirements from contract administration.
  Data Flows:
  • fmcas-m_and_c_regulations
  • fmcas-m_and_c_administrative_information
  • fmcas-resupply_response
  • fmcas-m_and_c_personnel_information
  
  

Maintenance and Construction Centre Personnel > Maintenance and Construction Management

• maint and constr centre personnel inputs - User input from maintenance and construction centre personnel including routing information, scheduling data, dispatch instructions, device configuration and control, resource allocations, alerts, incident and emergency response plan coordination.
  Data Flows:
  • fmccp-env_data_collection_inputs
  • fmccp-archive_commands
  • fmccp-dispatch_and_routing_info
  • fmccp-emergency_plan_response
  • fmccp-wz_device_control
  • fmccp-wz_collection_and_distribution_parameters
  • fmccp-resource_response
  • fmccp-vehicle_speed_sensor_control
  • fmccp-env_sensor_control_inputs
  • fmccp-env_data_processing_inputs
  • fmccp-env_info_dissemination_inputs
  • fmccp-alert_and_threats_for_field_personnel
  • fmccp-request_m_and_c_tracking_display_update
  • fmccp-request_for_schedule
  • fmccp-mdss_parameter_input
  • fmccp-infrastructure_sensor_control
  • fmccp-vehicle_systems_control
  
  

Maintenance and Construction Management > Archived Data Management Subsystem

• maint and constr archive data - Information describing road construction and maintenance activities identifying the type of activity, the work performed, and work zone information including work zone configuration and safety (e.g., a record of intrusions and vehicle speeds) information. For construction activities, this information also includes a description of the completed infrastructure, including as-built plans as applicable. Content may include a catalog of available information, the actual information to be archived, and associated meta data that describes the archived information.
  Data Flows:
  • m_and_c_archive_data
  
  

Maintenance and Construction Management > Asset Management

• asset status update - Changes to status of pavement, bridges, signs and other assets resulting from maintenance or construction activities or infrastructure monitoring. The updates may include changes in installation information, materials information, vendor/contractor information, condition, and current maintenance status. In addition to infrastructure asset updates, the information provided may also include status of the maintenance and construction support assets, including vehicle and equipment utilization and repair records.
  Data Flows:
  • tam-asset_status_update_for_asset_mgmt
  • tam-infrastructure_data_for_analysis
  
  

Maintenance and Construction Management > Commercial Vehicle Administration

• current asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard facility design height, width, and weight restrictions, special restrictions such as spring weight restrictions, and temporary facility restrictions that are imposed during maintenance and construction.
  Data Flows:
  • asset_restrictions_for_com_veh
  
  

Maintenance and Construction Management > Emergency Management

• alert status - Information indicating the current status of the emergency alert including identification of the traveller and driver information systems that are being used to provide the alert.
  Data Flows:
  • alert_notification_status_from_maint
  
  
• current asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard facility design height, width, and weight restrictions, special restrictions such as spring weight restrictions, and temporary facility restrictions that are imposed during maintenance and construction.
  Data Flows:
  • asset_restrictions_for_em_response
  • asset_restrictions_for_emerg
  
  
• emergency plan coordination - Information that supports coordination of emergency management plans, continuity of operations plans, emergency response and recovery plans, evacuation plans, and other emergency plans between agencies. This includes general plans that are coordinated prior to an incident and shorter duration tactical plans that are prepared during an incident.
  Data Flows:
  • evacuation_plan_coordination_from_m_and_c
  • disaster_response_plan_coordination_from_m_and_c
  
  
• incident information - Notification of existence of incident and expected severity, location, time and nature of incident. As additional information is gathered and the incident evolves, updated incident information is provided. Incidents include any event that impacts transportation system operation ranging from routine incidents (e.g., disabled vehicle at the side of the road) through large-scale natural or human-caused disasters that involve loss of life, injuries, extensive property damage, and multi-jurisdictional response. This also includes special events, closures, and other planned events that may impact the transportation system.
  Data Flows:
  • incident_info_for_emerg
  
  
• maint and constr resource response - Current status of maintenance and construction resources including availability and deployment status. General resource inventory information covering vehicles, equipment, materials, and people and specific resource deployment status may be included.
  Data Flows:
  • m_and_c_evacuation_resource_response
  • m_and_c_resource_response_to_emerg
  
  
• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • m_and_c_work_plans_for_emerg
  
  
• road network status assessment - Assessment of damage sustained by the road network including location and extent of the damage, estimate of remaining capacity, required closures, alternate routes, necessary restrictions, and time frame for repair and recovery.
  Data Flows:
  • m_and_c_status_assessment_for_disaster
  • m_and_c_status_assessment_for_evacuation
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • road_weather_info_for_emergency
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • roadway_maint_status_for_emerg
  
  
• security equipment maintenance status - Current status of security surveillance and sensor field equipment maintenance actions.
  Data Flows:
  • security_surveillance_equip_maint_status
  • security_sensor_equip_maint_status
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • work_zone_info_for_emergency
  
  

Maintenance and Construction Management > Enforcement Agency

• request for enforcement - Request for traffic enforcement to address safety issues in a work zone or other special situations.
  Data Flows:
  • tea-enforcement_request_from_m_and_c
  
  

Maintenance and Construction Management > Equipment Repair Facility

• maint and constr fleet information - Information supporting maintenance of the maintenance and construction vehicle fleet and other support equipment. This information includes vehicle status and diagnostic information, vehicle utilization, and coordination of when vehicles will be available for preventative and corrective maintenance.
  Data Flows:
  • terf-fleet_maintenance_availability
  • terf-mdss_recommended_actions
  • terf-vehicle_utilization_information
  
  

Maintenance and Construction Management > Information Service Provider

• current asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard facility design height, width, and weight restrictions, special restrictions such as spring weight restrictions, and temporary facility restrictions that are imposed during maintenance and construction.
  Data Flows:
  • asset_restrictions_for_info_provider
  
  
• equipment maintenance status - Current status of field equipment maintenance actions.
  Data Flows:
  • field_equip_maint_status_for_isp
  
  
• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • m_and_c_work_plans_for_info_provider
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • road_weather_info_for_isp
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • roadway_maint_status_for_info_provider
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • work_zone_info_for_isp
  • work_zone_images_for_isp
  
  

Maintenance and Construction Management > Maintenance and Construction Administrative Systems

• maint and constr administrative request - Requests for maintenance and construction administrative information or services. Requests include: requests to purchasing for equipment and consumables resupply and requests to human resources that manage training and special certification for field crews and other personnel.
  Data Flows:
  • tmcas-resupply_request
  • tmcas-m_and_c_administrative_request
  
  
• maint and constr work performance - Overall project status and work performance information provided to support contract administration.
  Data Flows:
  • tmcas-work_zone_info
  • tmcas-m_and_c_work_performance
  
  

Maintenance and Construction Management > Maintenance and Construction Centre Personnel

• maint and constr operations information presentation - Presentation of maintenance and construction operations information to centre personnel. This information includes maintenance resource status (vehicles, equipment, and personnel), work schedule information, work status, road and weather conditions, traffic information, incident information and associated resource requests, security alerts, emergency response plans and a range of other information that supports efficient maintenance and construction operations and planning.
  Data Flows:
  • tmccp-view_of_road_network
  • tmccp-alert_and_threats_info
  • tmccp-auto_treat_status
  • tmccp-barrier_system_status
  • tmccp-work_zone_info
  • tmccp-emergency_response_plan
  • tmccp-work_zone_images_for_display
  • tmccp-archive_status
  • tmccp-scheduled_work_plan
  • tmccp-env_and_weather_data
  • tmccp-env_info_for_dissemination
  • tmccp-m_and_c_activity_status
  • tmccp-resource_request
  • tmccp-processed_env_info
  • tmccp-vehicle_speed_data
  • tmccp-vehicle_fleet_status
  • tmccp-mdss_recommended_actions
  
  

Maintenance and Construction Management > Maintenance and Construction Vehicle

• environmental sensors control - Data used to configure and control environmental sensors.
  Data Flows:
  • environmental_sensor_control_for_mcv
  
  
• maint and constr dispatch information - Information used to dispatch maintenance and construction vehicles, equipment, and crews and information used to keep work zone crews informed. This information includes routing information, traffic information, road restrictions, incident information, environmental information, decision support information, maintenance schedule data, dispatch instructions, personnel assignments, alert notifications, and corrective actions.
  Data Flows:
  • suggested_route_to_mcv
  • status_of_other_work_zones
  • mdss_recommended_actions_for_operator
  • dispatch_orders_to_mcv
  • road_network_info_to_mcv
  • winter_dispatch_orders_to_mcv
  
  
• maint and constr vehicle system control - Configure and control data that supports remote control of on-board maintenance and construction vehicle systems and field equipment that is remotely controlled by the vehicle. For example, the data can be used to adjust material application rates and spread patterns.
  Data Flows:
  • mcv_vehicle_systems_control_by_fleet_manager
  • centre_control_of_on_board_work_zone_devices
  • mcv_infrastructure_sensor_control
  
  

Maintenance and Construction Management > Map Update Provider

• map update request - Request for a map update which could include a new underlying map or map layer updates.
  Data Flows:
  • tmup-request_m_and_c_route_map
  • tmup-request_m_and_c_display_update
  
  

Maintenance and Construction Management > Media

• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • tm-m_and_c_work_plans_for_media
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • tm-road_weather_info
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • tm-roadway_maint_status_for_media
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • tm-work_zone_info
  • tm-work_zone_images
  
  

Maintenance and Construction Management > Meteorological Service Provider

• environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors and aggregated by the data collector. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • tmsp-env_sensor_data
  
  
• road data - Basic road facility and treatment information that supports road conditions forecasts.
  Data Flows:
  • tmsp-asset_treatment_info
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • tmsp-env_info
  
  
• transportation weather information request - A request for transportation weather information that may specify the area of interest (a geographic region, particular routes within a region, specific road segments), the type of information that is required, the desired spatial resolution of the information, and time horizon.
  Data Flows:
  • tmsp-trans_weather_info_request
  
  

Maintenance and Construction Management > Multimodal Transportation Service Provider

• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • tmtsp-m_and_c_work_plans_for_mtsp
  
  

Maintenance and Construction Management > National Meteorological Service

• environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors and aggregated by the data collector. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • tnms-env_sensor_data
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • tnms-env_info
  
  

Maintenance and Construction Management > Other MCM

• maint and constr resource coordination - Request for road maintenance and construction resources that can be used in the diversion of traffic (cones, portable signs), clearance of a road hazard, repair of ancillary damage, or any other incident response.
  Data Flows:
  • tomcm-resource_coordination_data
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • tomcm-env_sensor_data
  • tomcm-road_weather_info
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • tomcm-roadway_maint_status
  
  
• work plan coordination - Coordination of work plan schedules and activities between maintenance and construction organizations or systems. This information includes the work plan schedules and comments and suggested changes that are exchanged as work plans are coordinated and finalized.
  Data Flows:
  • tomcm-m_and_c_work_plans
  • tomcm-m_and_c_plan_feedback
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • tomcm-work_zone_images
  • tomcm-work_zone_info
  
  

Maintenance and Construction Management > Rail Operations

• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • tro-m_and_c_work_plans_for_rail
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • tro-road_weather_info
  
  
• work plan feedback - Comments and suggested changes to proposed construction and maintenance work schedules and activities. This information influences work plan schedules so that they minimize impact to other system operations and the overall transportation system.
  Data Flows:
  • tro-railroad_schedule_feedback
  
  

Maintenance and Construction Management > Roadway Subsystem

• barrier system control - Information used to configure and control barrier systems that are represented by gates, barriers and other automated or remotely controlled systems used to manage entry to roadways.
  Data Flows:
  • barrier_system_control_from_m_and_c
  
  
• environmental sensors control - Data used to configure and control environmental sensors.
  Data Flows:
  • environmental_sensor_control_for_roadway_sensors
  
  
• infrastructure monitoring sensor control - Data used to configure and control infrastructure monitoring sensors.
  Data Flows:
  • infrastructure_sensor_control_from_m_and_c
  
  
• roadway information system data - Information used to initialize, configure, and control roadside systems that provide driver information (e.g., dynamic message signs, highway advisory radio, beacon systems). This flow can provide message content and delivery attributes, local message store maintenance requests, control mode commands, status queries, and all other commands and associated parameters that support remote management of these systems.
  Data Flows:
  • dms_auto_treat_data_from_maint
  • work_zone_info_for_display
  • har_data_from_m_and_c
  • dms_data_from_m_and_c
  
  
• roadway treatment system control - Control data for remotely located, automated devices, that affect the roadway surface (e.g. de-icing applications).
  Data Flows:
  • roadway_treatment_system_control
  
  
• traffic enforcement control - Information used to configure and control automated speed monitoring, speed warning, and speed enforcement systems.
  Data Flows:
  • speed_sensor_control_from_m_and_c
  
  
• video surveillance control - Information used to configure and control video surveillance systems.
  Data Flows:
  • video_control_from_m_and_c
  
  
• work zone warning device control - Data used to configure and control work zone safety monitoring and warning devices.
  Data Flows:
  • intrusion_detection_device_control
  • intrusion_alert_device_control
  
  

Maintenance and Construction Management > Storage Facility

• storage facility request - Request for information about the equipment and/or materials available at a maintenance storage facility.
  Data Flows:
  • tsf-materials_status_request
  • tsf-equipment_availability_request
  
  

Maintenance and Construction Management > Traffic Management

• current asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard facility design height, width, and weight restrictions, special restrictions such as spring weight restrictions, and temporary facility restrictions that are imposed during maintenance and construction.
  Data Flows:
  • asset_restrictions_for_traffic
  
  
• environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors and aggregated by the data collector. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • environment_sensor_data_for_traffic
  
  
• equipment maintenance status - Current status of field equipment maintenance actions.
  Data Flows:
  • field_equip_maint_status
  
  
• incident information - Notification of existence of incident and expected severity, location, time and nature of incident. As additional information is gathered and the incident evolves, updated incident information is provided. Incidents include any event that impacts transportation system operation ranging from routine incidents (e.g., disabled vehicle at the side of the road) through large-scale natural or human-caused disasters that involve loss of life, injuries, extensive property damage, and multi-jurisdictional response. This also includes special events, closures, and other planned events that may impact the transportation system.
  Data Flows:
  • incident_info_for_traffic
  
  
• maint and constr resource response - Current status of maintenance and construction resources including availability and deployment status. General resource inventory information covering vehicles, equipment, materials, and people and specific resource deployment status may be included.
  Data Flows:
  • m_and_c_resource_response_to_traffic
  
  
• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • m_and_c_work_plans_for_traffic
  
  
• road network status assessment - Assessment of damage sustained by the road network including location and extent of the damage, estimate of remaining capacity, required closures, alternate routes, necessary restrictions, and time frame for repair and recovery.
  Data Flows:
  • m_and_c_status_assessment_for_traffic
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • road_weather_info_for_traffic
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • roadway_maint_status_for_traffic
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • work_zone_info_for_traffic
  • work_zone_images_for_traffic
  
  

Maintenance and Construction Management > Transit Management

• current asset restrictions - Restrictions levied on transportation asset usage based on infrastructure design, surveys, tests, or analyses. This includes standard facility design height, width, and weight restrictions, special restrictions such as spring weight restrictions, and temporary facility restrictions that are imposed during maintenance and construction.
  Data Flows:
  • asset_restrictions_for_transit
  
  
• maint and constr work plans - Future construction and maintenance work schedules and activities including anticipated closures with anticipated impact to the roadway, alternate routes, anticipated delays, closure times, and durations.
  Data Flows:
  • m_and_c_work_plans_for_transit
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • road_weather_info_for_transit
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • roadway_maint_status_for_transit
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • work_zone_info_for_transit
  
  

Maintenance and Construction Vehicle > Maintenance and Construction Management

• environmental sensor data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors. Operational status of the sensors is also included.
  Data Flows:
  • environmental_sensor_data_from_mcv
  • environmental_sensor_status_from_mcv
  
  
• infrastructure conditions data - Current condition of pavement, bridges, culverts, signs, and other roadway infrastructure as measured by on-board sensors or read from infrastructure-based sensors. The data may include raw data or images (e.g., photo logs) that indicate the current status of the infrastructure.
  Data Flows:
  • mcv_infrastructure_sensor_status
  • mcv_infrastructure_sensor_data
  
  
• maint and constr dispatch status - Current maintenance and construction status including work data, operator status, crew status, and equipment status.
  Data Flows:
  • m_and_c_status_from_mcv_operator
  • field_equip_status_from_mcv_operator
  • dispatch_response_from_mcv
  
  
• maint and constr vehicle conditions - Vehicle diagnostics information that is collected, filtered, and selectively reported by a maintenance and construction vehicle. The information includes engine temperature, mileage, tire wear, brake wear, belt wear, and any warnings or alarms concerning the operational condition of the vehicle and ancillary equipment.
  Data Flows:
  • basic_mcv_measures_for_maint_sched
  • safety_data_for_fleet_mgmt
  
  
• maint and constr vehicle location data - The current location and related status (e.g., direction and speed) of the maintenance/construction vehicle.
  Data Flows:
  • vehicle_location_for_mcv_tracking
  
  
• maint and constr vehicle operational data - Data that describes the maintenance and construction activity performed by the vehicle. Operational data includes materials usage (amount stored and current application rate), operational state of the maintenance equipment (e.g., blade up/down, spreader pattern), vehicle safety status, and other measures associated with the operation of a maintenance, construction, or other special purpose vehicle. Operational data may include basic operational status of the vehicle equipment or a more precise record of the work performed (e.g., application of crack sealant with precise locations and application characteristics).
  Data Flows:
  • mcv_materials_status
  • on_board_work_zone_device_status
  • mcv_operational_data
  
  
• work zone status - Current work zone status including current location (and future locations for moving work zones), impact to the roadway, required lane shifts, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits.
  Data Flows:
  • work_zone_status_from_mcv
  
  
• work zone warning status - Status of a work zone safety monitoring and warning devices. This flow documents system activations and includes additional supporting information (e.g., an image) that allows verification of the alarm.
  Data Flows:
  • work_zone_intrusion_warning_notification
  
  

Map Update Provider > Maintenance and Construction Management

• map updates - Map update which could include a new underlying static or real-time map or map layer(s) update.
  Data Flows:
  • fmup-m_and_c_route_map_update
  • fmup-m_and_c_display_update
  
  

Meteorological Service Provider > Maintenance and Construction Management

• environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors and aggregated by the data collector. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • fmsp-env_sensor_data_for_maint
  
  
• roadway micro forecast - Forecast of weather and roadway conditions at a fine level of resolution (e.g. for individual links in the road network).
  Data Flows:
  • fmsp-roadway_micro_prediction
  
  
• transportation weather information - Current and forecast road conditions and weather information (e.g., surface condition, flooding, wind advisories, visibility, etc.) associated with the transportation network. This information is of a resolution, timeliness, and accuracy to be useful in transportation decision making.
  Data Flows:
  • fmsp-surface_trans_weather_observations
  • fmsp-surface_trans_weather_forecasts
  
  

National Meteorological Service > Maintenance and Construction Management

• environmental conditions data status - Status of the data quality of environmental conditions data provided by a data contributor. Includes not only status by sensor, but statistical data regarding the quality checking of data provided.
  Data Flows:
  • fnms-maintenance_environment_sensor_data_status
  
  
• qualified environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) that has had quality checks performed on it and has been formatted and consolidated by the Clarus system. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • fnms-env_sensor_data_for_maint
  
  
• volume weather information - Accumulated forecasted and current weather data (e.g., temperature, pressure, wind speed, wind direction, humidity, precipitation, visibility, light conditions, etc.).
  Data Flows:
  • fnms-current_weather_observations
  • fnms-weather_forecasts
  
  

Other MCM > Maintenance and Construction Management

• maint and constr resource coordination - Request for road maintenance and construction resources that can be used in the diversion of traffic (cones, portable signs), clearance of a road hazard, repair of ancillary damage, or any other incident response.
  Data Flows:
  • fomcm-resource_coordination_data
  
  
• road weather information - Road conditions and weather information that are made available by road maintenance operations to other transportation system operators.
  Data Flows:
  • fomcm-env_sensor_data
  • fomcm-road_weather_info
  
  
• roadway maintenance status - Summary of maintenance fleet operations affecting the road network. This includes the status of winter maintenance (snow plow schedule and current status).
  Data Flows:
  • fomcm-roadway_maint_status
  
  
• work plan coordination - Coordination of work plan schedules and activities between maintenance and construction organizations or systems. This information includes the work plan schedules and comments and suggested changes that are exchanged as work plans are coordinated and finalized.
  Data Flows:
  • fomcm-m_and_c_plan_feedback
  • fomcm-m_and_c_work_plans
  
  
• work zone information - Summary of maintenance and construction work zone activities affecting the road network including the nature of the maintenance or construction activity, location, impact to the roadway, expected time(s) and duration of impact, anticipated delays, alternate routes, and suggested speed limits. This information may be augmented with images that provide a visual indication of current work zone status and traffic impacts.
  Data Flows:
  • fomcm-work_zone_info
  • fomcm-work_zone_images
  
  

Rail Operations > Maintenance and Construction Management

• railroad schedules - Train schedules, maintenance schedules, and other information from the railroad that supports forecast of HRI closures.
  Data Flows:
  • fro-railroad_schedules
  
  
• work plan feedback - Comments and suggested changes to proposed construction and maintenance work schedules and activities. This information influences work plan schedules so that they minimize impact to other system operations and the overall transportation system.
  Data Flows:
  • fro-m_and_c_plan_feedback_from_rail
  
  

Roadway Subsystem > Maintenance and Construction Management

• barrier system status - Current operating status of barrier systems. Barrier systems represent gates, barriers and other automated or remotely controlled systems used to manage entry to roadways. Status of the systems includes operating condition and current operational state.
  Data Flows:
  • barrier_system_status_to_m_and_c
  
  
• environmental probe data - Data from vehicle safety and convenience systems that can be used to estimate environmental conditions, including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti-lock brake status, and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected. Both current data and snapshots of recent events (e.g., traction control or anti-lock brake system activations) may be reported.
  Data Flows:
  • vehicle_env_probe_data_for_maint
  • vehicle_env_probe_status_for_maint
  • vehicle_env_probe_data_for_infrastructure_maint
  
  
• environmental sensor data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors. Operational status of the sensors is also included.
  Data Flows:
  • environmental_sensor_status_from_roadway_sensors
  • environmental_sensor_data_from_roadway_sensors
  
  
• field device status - Reports from field equipment (sensors, signals, signs, controllers, etc.) which indicate current operational status.
  Data Flows:
  • field_equip_status_for_m_and_c
  
  
• infrastructure monitoring sensor data - Data read from infrastructure-based sensors that monitor the condition or integrity of transportation infrastructure including bridges, tunnels, interchanges, pavement, culverts, signs, transit rail or guideway, and other roadway infrastructure. Includes sensor data and the operational status of the sensors.
  Data Flows:
  • infrastructure_sensor_status_for_m_and_c
  • infrastructure_sensor_data_for_m_and_c
  
  
• roadway information system status - Current operating status of dynamic message signs, highway advisory radios, beacon systems, or other configurable field equipment that provides dynamic information to the driver.
  Data Flows:
  • dms_auto_treat_status_to_maint
  • har_status_for_m_and_c
  • dms_status_for_m_and_c
  
  
• roadway treatment system status - Current operational status of automated roadway treatment devices (e.g., anti-icing systems).
  Data Flows:
  • roadway_treatment_system_status
  
  
• traffic enforcement information - System status including current operational state and logged information including measured speeds, warning messages displayed, and violation records.
  Data Flows:
  • speed_data_for_m_and_c_speed_monitoring
  • speed_sensor_log_for_m_and_c
  • speed_violation_notification_for_m_and_c
  • speed_sensor_status_for_m_and_c
  
  
• traffic images - High fidelity, real-time traffic images suitable for surveillance monitoring by the operator or for use in machine vision applications. This flow includes the images and the operational status of the surveillance system.
  Data Flows:
  • video_device_status_for_m_and_c
  • work_zone_images
  
  
• violation detection - Roadside detection of a vehicle violating a speed limit, traffic signal, or control signage.
  Data Flows:
  • speed_violation_notification_for_m_and_c
  
  
• work zone warning status - Status of a work zone safety monitoring and warning devices. This flow documents system activations and includes additional supporting information (e.g., an image) that allows verification of the alarm.
  Data Flows:
  • intrusion_alert_device_status
  • roadside_crew_warning_given
  • work_zone_intrusion_alert
  • intrusion_detection_device_status
  • work_zone_intrusion_video_image
  • work_zone_intrusion_detected
  
  

Storage Facility > Maintenance and Construction Management

• equipment availability - An inventory of the maintenance and construction equipment available at the storage facility. This flow includes the type of equipment, enough descriptive information to indicate its suitability for use, and its current status. This flow may contain information for a specific type of equipment or include all equipment available at the facility.
  Data Flows:
  • fsf-equipment_availability_for_fleet_manager
  • fsf-equipment_status_for_tracking
  • fsf-equipment_availability
  
  
• maintenance materials storage status - The amount and availability of maintenance materials in storage facilities.
  Data Flows:
  • fsf-materials_status
  
  

Traffic Management > Maintenance and Construction Management

• environmental conditions data - Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors and aggregated by the data collector. Attributes relating to the data collection (and aggregation) are also included.
  Data Flows:
  • environment_sensor_data_for_maint
  
  
• field equipment status - Identification of field equipment requiring repair and known information about the associated faults.
  Data Flows:
  • field_equipment_status_from_traffic
  
  
• incident information - Notification of existence of incident and expected severity, location, time and nature of incident. As additional information is gathered and the incident evolves, updated incident information is provided. Incidents include any event that impacts transportation system operation ranging from routine incidents (e.g., disabled vehicle at the side of the road) through large-scale natural or human-caused disasters that involve loss of life, injuries, extensive property damage, and multi-jurisdictional response. This also includes special events, closures, and other planned events that may impact the transportation system.
  Data Flows:
  • planned_events_for_maint
  • incident_info_from_traffic
  
  
• maint and constr resource request - Request for road maintenance and construction resources that can be used in the diversion of traffic (cones, portable signs), clearance of a road hazard, repair of ancillary damage, or any other incident response. The request may poll for resource availability or request pre-staging, staging, or immediate dispatch of resources.
  Data Flows:
  • roadway_maint_action_req_from_traffic
  • m_and_c_resource_request_from_traffic
  • winter_maint_action_req_from_traffic
  
  
• road network conditions - Current and forecasted traffic information, road and weather conditions, and other road network status. Either raw data, processed data, or some combination of both may be provided by this architecture flow. Information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements) in effect is included along with a definition of the links, nodes, and routes that make up the road network.
  Data Flows:
  • environmental_sensor_data_from_traffic_management
  • road_network_info_from_traffic
  • roadway_detours_and_closures_for_m_and_c
  
  
• road network status assessment - Assessment of damage sustained by the road network including location and extent of the damage, estimate of remaining capacity, required closures, alternate routes, necessary restrictions, and time frame for repair and recovery.
  Data Flows:
  • disaster_network_status_from_traffic_to_m_and_c
  
  
• work plan feedback - Comments and suggested changes to proposed construction and maintenance work schedules and activities. This information influences work plan schedules so that they minimize impact to other system operations and the overall transportation system.
  Data Flows:
  • m_and_c_plan_feedback_from_traffic
  
  

Transit Management > Maintenance and Construction Management

• work plan feedback - Comments and suggested changes to proposed construction and maintenance work schedules and activities. This information influences work plan schedules so that they minimize impact to other system operations and the overall transportation system.
  Data Flows:
  • m_and_c_plan_feedback_from_transit