Inter-agency Information Sharing System - 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: ISP Data Collection
Collection and storage of information supporting the operations of traveler information service providers. For use by operations personnel or data archives in the region.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall collect traveler information data, such as parking lot data, rideshare data, road network use data, vehicle probe data, and other data from traveler information system operations. | Near-term |
| 3 | The center shall assign quality control metrics and meta-data to be stored along with the data. Meta-data may include attributes that describe the source and quality of the data and the conditions surrounding the collection of the data. | Long-term |
| 4 | The center shall receive and respond to requests from ITS Archives for either a catalog of the traveler information data or for the data itself. | Long-term |
| 5 | The center shall be able to produce sample products of the data available. | Long-term |
Functional Area: ISP Operational Data Repository
Processes, stores, and distributes real-time information on the state of the regional transportation system to transportation system operators.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall select real-time information on the state of the regional transportation system including current traffic and road conditions, weather conditions, transit information, parking information, special event and incident information. | Near-term |
| 2 | The center shall distribute real-time transportation operations data to centers in the region. The data may be broadcast or customized based on the receiving center’s specified requests or subscriptions. | Near-term |
| 3 | The center shall support the capability for the system operator to monitor and control the operational data repository and information distribution service. | Near-term |
| 4 | The center shall provide a web site that provides real-time transportation data to transportation system operators in the region. | Near-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. | Near-term |
| 2 | The center shall collect, process, and store maintenance and construction information, including scheduled maintenance and construction work activities and work zone activities. | Near-term |
| 3 | The center shall collect, process, and store transit routes and schedules, transit transfer options, transit fares, and real-time schedule adherence information. | Near-term |
| 7 | The center shall collect, process, and store event information. | Near-term |