Data Archival Application Area
This center-to-center application area covers the interface between a transportation data archive and the sources of the archived data. It also covers the interface between the data archive and users of the archived data. An ITS data archive collects and maintains data to be used for planning, analysis, operations, and research. The data placed into the archive can come from a variety of transportation systems including traffic management centers, transit management centers, emissions management systems, emergency management centers, commercial vehicle administration systems, transportation asset systems, maintenance and construction management systems, traveler information providers, providers of other modes of transportation (e.g. rail, ferry, or air), parking systems, toll systems, and intermodal freight carriers or terminals. The data archive may also include data that is not collected by transportation systems (e.g., weather information). The users of the archive data include various user systems as well as other data archives.
National ITS Architecture Interface
This application area centers around the Archived Data Management Subsystem (ADMS), which gathers information about surface transportation for later analysis. There are many subsystems and terminators in the National ITS Architecture that provide data to the ADMS. Each of these interfaces operate in a similar fashion. The ADMS can request a catalog of the transportation data and/or the data itself from each data source. Each data source provides metadata (data about the data; e.g. source and time when the data was collected) as well as the data itself to enable validation and off line analysis of the data. The ADMS in turn provides status (indicating whether the received data was valid and received without error) to the data source. The data source interfaces to the ADMS include:
- The Traffic Management Subsystem provides current, predicted, and historical traffic data, as well as video images and operational data to the ADMS.
- The Transit Management Subsystem provides transit passenger data, transit deployment data, transit user payment data, transit emergency, security, maintenance and personnel data.
- The Emissions Management Subsystem provides information on air quality and vehicle emissions data.
- The Emergency Management Subsystem provides information on incidents, evacuations, alerts and advisories, resource information, and threat data.
- The Maintenance and Construction Management Subsystem provides information describing road construction and maintenance activities.
- The Information Service Provider sends data associated with traveler information services including service requests and confirmations (e.g., trip requests, route requests, yellow pages services requests, ridesharing requests, parking requests), vehicle probe data, route guidance data, and other route usage data (e.g., cycling, walking).
Includes Architecture Flows:
- ATIS General Use: Advanced Traveler Information Systems (ATIS) General Use Standards Group
- ATIS Low Bandwidth: Advanced Traveler Information Systems (ATIS) Bandwidth Limited Standards Group
- IEEE IM: Incident Management Standards Group
- Mayday: On-board Vehicle Mayday Standards Group
- NTCIP C2C: NTCIP Center-to-Center Standards Group
- NTCIP C2F: NTCIP Center-to-Field Standards Group
- ASTM E2468-05: Standard Practice for Metadata to Support Archived Data Management Systems
- ASTM E2665-08: Standard Specifications for Archiving ITS-Generated Traffic Monitoring Data
- ITE TMDD: Traffic Management Data Dictionary (TMDD) and Message Sets for External Traffic Management Center Communications (MS/ETMCC)