PTC Offices - 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.

IDRequirementStatus
2The center shall disseminate maintenance and construction information to travelers, including scheduled maintenance and construction work activities and work zone activities.Existing
4The center shall disseminate parking information to travelers, including location, availability, and fees.Existing
5The center shall disseminate toll fee information to travelers.Existing
7The center shall disseminate event information to travelers.Existing

Functional Area: Infrastructure Provided Trip Planning

Generation of pre-trip and enroute trip plans for travelers (and vehicles) based on current traffic conditions, work zones, weather, and travelers constraints and preferences. Includes end-to-end trips using multiple modes, such as bicycle, transit, etc.

IDRequirementStatus
1The center shall provide the capability to provide specific pre-trip and enroute directions to travelers (and drivers), including costs, arrival times, and transfer points.Existing
4The center shall support on-line route guidance for drivers in vehicles.Existing
5The center shall support on-line route guidance for specialty vehicles, such as commercial vehicles.Existing
6The center shall generate route plans based on current and/or predicted conditions of the road network, scheduled maintenance and construction work activities, and work zone activities.Existing
8The center shall generate route plans based on current asset restrictions, such as height and weight restrictions on tunnels or bridges.Existing

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.

IDRequirementStatus
1The 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.Existing
2The center shall collect, process, and store maintenance and construction information, including scheduled maintenance and construction work activities and work zone activities.Existing
4The center shall collect, process, and store parking information, including location, availability, and fees.Existing
5The center shall collect, process, and store toll fee information.Existing
7The center shall collect, process, and store event information.Existing