Information Service Provider Functionality

Subsystem Description

The Information Service Provider Subsystem (ISPS) collects, processes, stores, and disseminates transportation information to system operators and the traveling public. The subsystem can play several different roles in an integrated ITS. In one role, the ISP provides a data collection, fusing, and repackaging function, collecting information from transportation system operators and redistributing this information to other system operators in the region and other ISPs. In this information redistribution role, the ISP provides a bridge between the various transportation systems that produce the information and the other ISPs and their subscribers that use the information. The second role of an ISP is focused on delivery of traveler information to subscribers and the public at large. Information provided includes basic advisories, traffic and road conditions, transit schedule information, yellow pages information, ridematching information, and parking information. The subsystem also provides the capability to provide specific directions to travelers by receiving origin and destination requests from travelers, generating route plans, and returning the calculated plans to the users. In addition to general route planning for travelers, the ISP also supports specialized route planning for vehicle fleets. In this third role, the ISP function may be dedicated to, or even embedded within, the dispatch system. Reservation services are also provided in advanced implementations. The information is provided to the traveler through the Personal Information Access Subsystem, Remote Traveler Support Subsystem, and the Vehicle Subsystem through available communications links. Both basic one-way (broadcast) and personalized two-way information provision are supported. The ISP is most commonly implemented as an Internet web site, but it represents any traveler information distribution service including systems that broadcast digital transportation data (e.g., satellite radio networks) and systems that support distribution through Field-Vehicle Communications networks. The ISP accomplishes these roles using constantly evolving technologies like the Internet (World Wide Web pages), direct broadcast communications (email alerts, pagers, satellite radio network data broadcasts), communications through Field-Vehicle Communications networks, etc.

Functional Area: Basic Information Broadcast

Broadcast dissemination of traffic, transit, maintenance and construction, event, and weather information to traveler interface systems and vehicles.

ID Requirement Status
1 The center shall disseminate traffic and highway condition information to travelers, including incident information, detours and road closures, event information, recommended routes, and current speeds on specific routes. Long-term
2 The center shall disseminate maintenance and construction information to travelers, including scheduled maintenance and construction work activities and work zone activities. Long-term
3 The center shall disseminate transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information to travelers. Long-term
4 The center shall disseminate parking information to travelers, including location, availability, and fees. Long-term
5 The center shall disseminate toll fee information to travelers. Long-term
6 The center shall disseminate weather information to travelers. Long-term
7 The center shall disseminate event information to travelers. Long-term

Functional Area: Interactive Infrastructure Information

Personalized dissemination of traffic, transit, maintenance and construction, multimodal, event, and weather information to traveler interface systems and vehicles, upon request.

ID Requirement Status
1 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. Long-term
2 The center shall disseminate customized maintenance and construction information to travelers, including scheduled maintenance and construction work activities and work zone activities upon request. Long-term
3 The center shall disseminate customized transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information to travelers upon request. Long-term
4 The center shall disseminate customized parking information to travelers, including location, availability, and fees upon request. Long-term
5 The center shall disseminate customized toll fee information to travelers upon request. Long-term
6 The center shall disseminate customized weather information to travelers upon request. Long-term
7 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. Long-term
8 The center shall disseminate customized event information to travelers upon request. Long-term
10 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. Long-term
15 The center shall manage updates of digitized map data and provide updates to traveler interface systems upon request. Long-term
17 The center shall provide the capability for a system operator to control the type and update frequency of traveler information. Long-term

Functional Area: ISP Traveler Data Collection

Collects traveler information from other centers, consolidates and refines the collected data, and makes this data available to traveler information applications.

ID Requirement Status
1 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. Long-term
2 The center shall collect, process, and store maintenance and construction information, including scheduled maintenance and construction work activities and work zone activities. Long-term
3 The center shall collect, process, and store transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information. Long-term
4 The center shall collect, process, and store parking information, including location, availability, and fees. Long-term
5 The center shall collect, process, and store toll fee information. Long-term
6 The center shall collect, process, and store current and forecast road conditions and surface weather conditions. Medium-term
7 The center shall collect, process, and store event information. Long-term

Functional Area: ISP Traveler Information Alerts

Provides personalized traveler information alerts, notifying travelers of relevant congestion, incidents, transit schedule delays. and other actionable information that may impact a trip. Relevant alerts are selected based on user-configurable parameters and thresholds.

Functional Area: Traveler Telephone Information

Distribution of traveler information and wide-area alerts to traveler telephone information systems such as 511, based on voice-based traveler requests.

ID Requirement Status
1 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. Long-term
2 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. Long-term
3 The center shall provide the capability to process traveler information requests from a traveler telephone information system. Long-term
4 The center shall provide information on traffic conditions in the requested voice format and for the requested location. Long-term
5 The center shall provide work zone and roadway maintenance information in the requested voice format and for the requested location. Long-term
6 The center shall provide roadway environment conditions information in the requested voice format and for the requested location. Long-term
7 The center shall provide weather and event information in the requested voice format and for the requested location. Long-term
8 The center shall provide transit service information in the requested voice format and for the requested location. Long-term
9 The center shall provide yellow pages services information in the requested voice format and for the requested location. Long-term
10 The center shall provide current ferry and rail schedule and airport status information in the requested voice format and for the requested location. Long-term
12 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. Long-term