District of Columbia ITS Architecture

Interfaces:

Basic Vehicle Reception

• The vehicle shall receive formatted traffic information from a center and present it to the driver.
• The vehicle shall receive transit information from a center and present it to the driver.
• The vehicle shall receive event information from a center and present it to the driver.
• The vehicle shall receive evacuation information from a center and present it to the driver.
• The vehicle shall receive wide-area alerts and present it to the driver.
• The vehicle shall provide data from the vehicle itself to the driver. This vehicle data may include vehicle conditions, environmental conditions, safety or position warnings.
• The vehicle shall prioritize safety and warning messages to supersede advisory and broadcast messages.
• The vehicle shall support driver input in audio or manual form.
• The vehicle shall present information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.

Interactive Vehicle Reception

• The vehicle shall receive formatted traffic and travel advisories from a center and present them to the driver upon request.
• The vehicle shall receive yellow pages information (such as lodging, restaurants, theaters, and other tourist activities) from a center and present it to the driver upon request.
• The vehicle shall receive event information from a center and present it to the driver upon request.
• The vehicle shall collect vehicle data and present it to the driver (including vehicle conditions, environmental conditions, safety and position warnings, and enhanced vision images) upon request.
• The vehicle shall provide the capability of translating signage for presentation to the driver, including fixed signage, situational messages, or work zone intrusion messages.
• The vehicle shall accept reservations for yellow pages services, non-motorized transportation information and event information.
• The vehicle shall prioritize safety and warning messages to supersede advisory and broadcast messages.
• The vehicle shall base requests from the driver on the vehicle's current location, and filter the provided information accordingly.
• The vehicle shall accept personal preferences, recurring trip characteristics, and traveler alert subscription information from the driver and send this information to a center to support customized traveler information services.
• The vehicle shall support driver input in audio or manual form.
• The vehicle shall present information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.

Vehicle Mayday I/F

Vehicle Toll/Parking Interface

• The vehicle shall respond to requests from toll collection equipment for credit identity, stored value card cash, etc.
• The vehicle shall respond to request from parking field equipment for credit identity, stored value card cash, etc.
• The vehicle shall provide an interface to the driver to make requests for advance payments of tolls, parking, and transit fares and present the status of electronic payment transactions.
• The vehicle shall provide an interface with the traveler card / payment instrument carried on-board the vehicle - to exchange identity information and payment transactions.
• The vehicle shall present information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.

Vehicle Location Determination