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En-Route Driver Information
The En-Route Driver Information user service provides driver advisories to convey information about traffic conditions, incidents, construction, transit schedules, and other mode choice options to drivers of personal, commercial, and public transit vehicles. This service also includes in-vehicle signing, which provides the same types of information found on highway signs today, but displays it directly in the vehicle. Full deployment of in-vehicle signing would also include customized information, such as warnings of hazardous road conditions (e.g., fog, ice) or the safe speed for a specific type of vehicle (e.g., autos, buses, large trucks).
User Service Requirements
| 1.2.0 | ITS shall include an En-Route Driver Information (DI) function. Driver Information provides vehicle drivers with information, while en-route, which will allow alternative routes to be chosen for their destination. Driver Information consists of two major functions, which are, (1) Driver Advisory and (2) In-vehicle Signing. The potential decrease in traffic may also provide benefits in highway safety, reduced air pollution, and decreased congestion. PSpecs: 1.1.1.3, 1.1.1.5, 1.1.1.6, 1.1.3, 1.2.4.3, 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.6.2.1, 6.7.1.1.1, 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4, 6.7.3.5 |
| 1.2.1 | DI shall be implemented in a manner that is beneficial to the transportation system and the public. PSpecs: 6.6.2.1, 6.7.1.1.1, 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4, 6.7.3.5 |
| 1.2.1.1 | DI shall be implemented in a manner that helps improve highway safety. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.5 |
| 1.2.1.2 | DI shall be implemented in a manner that helps reduce air pollution. PSpecs: 6.7.1.2 |
| 1.2.1.3 | DI shall be implemented in a manner that helps decrease congestion. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.5 |
| 1.2.1.4 | DI shall be designed in a manner that permits a two-phase implementation. PSpecs: 6.6.2.1, 6.7.1.1.1, 6.7.3.5 |
| 1.2.1.4.1 | The DI two-phase implementation shall include a short term capability to address those features that can be implemented in the present time frame. PSpecs: 6.6.2.1, 6.7.3.5 |
| 1.2.1.4.2 | The DI two-phase implementation shall include a long term capability to address those features that can be implemented when the remainder of the ITS system is deployed. PSpecs: 6.7.1.1.1, 6.7.3.5 |
| 1.2.1.5 | DI shall include a driver advisory capability and an in-vehicle signing capability. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4, 6.7.3.5 |
| 1.2.2 | DI shall include a Driver Advisory function, which shall be implemented in two phases with first a short term capability and later a long term capability. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.5.9, 6.7.1.1.1, 6.7.3.5 |
| 1.2.2.1 | The short term DI driver information capability shall include the ability to provide information to travellers within the limited area of deployment. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.5.9, 6.7.1.1.1, 6.7.3.5 |
| 1.2.2.1.1 | DI shall include the capability to provide travellers with accurate information concerning available travel options and their state of operational availability. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.5.9, 6.7.3.5 |
| 1.2.2.1.2 | DI shall provide information to travellers required for them to avoid areas of congestion. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.5.9, 6.7.3.5 |
| 1.2.2.1.2.1 | DI shall provide information needed for travellers to select transportation modes that allow them to avoid congestion. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.9, 6.7.3.5 |
| 1.2.2.1.3 | DI shall provide the capability for users to receive travel information in their vehicles. PSpecs: 6.2.1, 6.2.3, 6.2.4, 6.5.7, 6.5.9, 6.7.3.5 |
| 1.2.2.1.4 | In the short-term DI shall be deployed in those limited areas where the need and associated benefits are more immediate. PSpecs: 6.7.1.1.1, 6.7.3.5 |
| 1.2.2.2 | The long term DI driver information capability shall include the ability to provide information to travellers within all geographic areas of the ITS deployment. PSpecs: 6.7.1.1.1, 6.7.3.5 |
| 1.2.3 | DI shall provide an In-vehicle Signing capability. PSpecs: 1.1.1.3, 1.1.1.5, 1.1.1.6, 1.1.3, 1.2.4.3, 6.7.1.1.1, 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4 |
| 1.2.3.1 | The DI In-vehicle Signing function shall include a short term capability to serve the more immediate needs of travellers. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.1 | The short term In-vehicle Signing function shall include the capability to provide assistance to individuals with impaired vision. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.2 | The short term In-vehicle Signing function shall include the capability to provide assistance to individuals needing local guidance in areas that the driver is unfamiliar with (e.g., airports, resort areas, tourist attractions). PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.3 | The short term In-vehicle Signing function shall include the capability to provide assistance to individuals in areas that frequently have conditions of poor visibility, high winds, extreme temperature, and falling rocks. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.4 | The short term In-vehicle Signing function shall be implemented in a manner that augments existing signs. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.4.1 | The short term In-vehicle Signing function shall augment control signs (e.g., stop signs). PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.4.2 | The short term In-vehicle Signing function shall augment warning signs (e.g., slow signs). PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.1.5 | The short term In-vehicle Signing function shall provide a user interface that allows travellers to access its capabilities. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.2 | The DI In-vehicle Signing function shall include a long term capability to serve more of the traveller's needs. PSpecs: 1.1.1.3, 1.1.1.5, 1.1.1.6, 1.1.3, 1.2.4.3, 6.7.1.1.1, 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4 |
| 1.2.3.2.1 | The long term In-vehicle Signing function shall be integrated with other ITS system capabilities. PSpecs: 6.7.1.1.1 |
| 1.2.3.2.2 | The long term In-vehicle Signing function shall provide the capability to customize warnings. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4 |
| 1.2.3.2.2.1 | The customized warnings function shall provide the capability to control the contents of warning messages to the extant environmental conditions. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4 |
| 1.2.3.2.3 | The In-vehicle Signing function shall provide the capability to utilize data from roadside environmental sensors as inputs to warning messages. PSpecs: 1.1.1.3, 1.1.1.5, 1.1.1.6, 1.1.3, 1.2.4.3 |
| 1.2.3.2.4 | The In-vehicle Signing function shall provide travellers with information on road conditions. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2 |
| 1.2.3.2.5 | The In-vehicle Signing function shall provide travellers with precautionary reminder messages. PSpecs: 6.7.1.2, 6.7.3.1, 6.7.3.2, 6.7.3.3, 6.7.3.4 |
