Caltrans TMCs
Status
Existing
Description
This ITS element represents the systems, communications and interactions between Caltrans and NDOT (and other Nevada entities) for coordination of traffic, construction and maintenance as well as travel management. District 2 will share traveler information with TMCs regarding I–80.
Stakeholders
Physical Objects
Functional Objects
| Functional Object | Description |
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| TIC Road Weather Advisories and Warnings | 'TIC Road Weather Advisories and Warnings' provides road weather advisories to drivers and other travelers. |
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| TIC Situation Data Management | 'TIC Situation Data Management' manages connected vehicle situation data collection, quality controls, filtering, aggregation, and storage. Through this process, raw data reported by connected vehicles are transformed into information products that can be accessed and used to support transportation operations and traveler information. The distribution of the connected vehicle–derived information products is handled by other functional objects. |
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| TIC Traveler Information Broadcast | 'TIC Traveler Information Broadcast' disseminates traveler information including traffic and road conditions, incident information, maintenance and construction information, event information, transit information, parking information, and weather information. The same information is broadcast to all equipped traveler interface systems and vehicles. |
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| TMC Environmental Monitoring | 'TMC Environmental Monitoring' assimilates current and forecast road conditions and surface weather information using a combination of weather service provider information, information collected by other centers such as the Maintenance and Construction Management Center, data collected from environmental sensors deployed on and about the roadway, and information collected from connected vehicles. The collected environmental information is monitored and presented to the operator. This information can be used to issue general traveler advisories and support location specific warnings to drivers. |
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| TMC Passive Surveillance | 'TMC Passive Surveillance' collects time stamped vehicle identities from different detection zones, correlates the identities, and calculates link travel times and derives other traffic measures. |
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| TMC Regional Traffic Management | 'TMC Regional Traffic Management' supports coordination between Traffic Management Centers in order to share traffic information between centers as well as control of traffic management field equipment. This coordination supports wide area optimization and regional coordination that spans jurisdictional boundaries; for example, coordinated signal control in a metropolitan area or coordination between freeway operations and arterial signal control within a corridor. |
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| TMC Situation Data Management | 'TMC Situation Data Management' collects, assimilates, and disseminates vehicle probe data collected from roadside short range communications equipment and centers controlling transit vehicles, toll collection points, and route–guided vehicles. It estimates traffic and road conditions based on the aggregated probe data and disseminates this information to other centers. |
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| TMC Traffic Metering | 'TMC Traffic Metering' provides center monitoring and control of traffic metering systems including on ramps, through interchanges, and on the mainline roadway. All types of metering are covered including pre–timed/fixed time, time–based, dynamic and adaptive metering strategies and special bypasses. Metering rates can be calculated based upon historical data or current conditions including traffic, air quality, etc. |
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Interfaces To