District of Columbia ITS Architecture

Interfaces:

Basic Information Broadcast

Interactive Infrastructure Information

• The center shall disseminate customized traffic and highway condition information to travelers, including incident information, detours and road closures, recommended routes, and current speeds on specific routes upon request.
• The center shall disseminate customized maintenance and construction information to travelers, including scheduled maintenance and construction work activities and work zone activities upon request.
• The center shall disseminate customized transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information to travelers upon request.
• The center shall disseminate customized parking information to travelers, including location, availability, and fees upon request.
• The center shall disseminate customized weather information to travelers upon request.
• The center shall disseminate customized multimodal transportation service information (for example, from ferry and airline operators), including transfer points and other information, to travelers upon request.
• The center shall disseminate customized event information to travelers upon request.
• The center shall provide all traveler information based on the traveler's current location or a specific location identified by the traveler, and filter or customize the provided information accordingly.
• The center shall accept traveler profiles for determining the type of personalized data to send to the traveler.
• The center shall manage payment for services, such as tolls, transit fares, parking lot charges, map updates, and advanced payment for tolls, and provide transaction success or failure details.
• The center shall manage updates of digitized map data and provide updates to traveler interface systems upon request.
• The center shall provide the capability to support requests from the media for traffic and incident data.
• The center shall provide the capability for a system operator to control the type and update frequency of traveler information.

Traveler Telephone Information

• The center shall provide current ferry and rail schedule and airport status information in the requested voice format and for the requested location.
• The center shall provide the capability to support both specific caller requests as well as bulk upload of regional traveler information.
• The center shall receive and forward region-specific wide-area alert and advisory information to the traveler telephone information system, including major emergencies such as a natural or man-made disaster, civil emergency, child abductions, severe weather watches and warnings, military activities, and law enforcement warnings.
• The center shall provide the capability to process voice-formatted requests for traveler information from a traveler telephone information system, and return the information in the requested format.
• The center shall provide the capability to process dual-tone multifrequency (DTMF)-based requests (touch-tone) for traveler information from a traveler telephone information system.
• The center shall provide the capability to process traveler information requests from a traveler telephone information system.
• The center shall provide information on traffic conditions in the requested voice format and for the requested location.
• The center shall provide work zone and roadway maintenance information in the requested voice format and for the requested location.
• The center shall provide roadway environment conditions information in the requested voice format and for the requested location.
• The center shall provide weather and event information in the requested voice format and for the requested location.
• The center shall provide transit service information in the requested voice format and for the requested location.

ISP Traveler Data Collection

• The center shall collect, process, and store traffic and highway condition information, including incident information, detours and road closures, event information, recommended routes, and current speeds on specific routes.
• The center shall collect, process, and store maintenance and construction information, including scheduled maintenance and construction work activities and work zone activities.
• The center shall collect, process, and store transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information.
• The center shall collect, process, and store parking information, including location, availability, and fees.
• The center shall collect, process, and store current and forecast road conditions and surface weather conditions.
• The center shall collect, process, and store event information.

ISP Traveler Information Alerts

• The center shall disseminate personalized transit alerts reporting transit delays and service interruptions.
• The center shall disseminate personalized parking alerts reporting parking availability and closures.
• The center shall disseminate personalized road weather alerts reporting adverse road and weather conditions.
• The center shall disseminate personalized multimodal transportation service alerts including ferry and air travel delays, port closures, and service interruptions.
• The center shall disseminate personalized event alerts reporting special event impacts on the transportation system.
• The center shall provide an operator interface that supports monitoring and management of subscribers and the content and format of alert messages.
• The center shall accept traveler profiles that establish recurring trip characteristics including route, mode, and timeframe information.
• The center shall accept traveler profiles that define alert thresholds that establish the severity and types of alerts that are provided to each traveler.
• The center shall disseminate personalized traffic alerts reporting congestion, incidents, delays, detours and road closures that may impact a current or planned trip.