TMC Traffic Network Performance Evaluation (Equipment Packages*)

This equipment package measures traffic network performance and predicts travel demand patterns to support traffic flow optimization, demand management, and incident management. This equipment package collects traffic data from sensors and surveillance equipment as well as input from other traffic management centers, emissions management, transit operations, and event promoters and uses this information to measure traffic network performance. It collects route planning information from information service providers and integrates and uses this information to predict future traffic conditions. The planned control strategies can be passed back to the Information Service Provider so that the intended strategies can be reflected in future route planning.

Included In
Functionality
Inputs/Outputs

Included In:

Traffic Management

ATMS09-Transportation Decision Support and Demand Management

Functionality:

Functional Requirements*

The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center to support overall network performance evaluations.
The center shall collect wide-area pollution data from emissions management centers to support overall network performance evaluations.
The center shall collect and store plans from event promoters for major future events possibly impacting traffic to support overall network performance evaluations.
The center shall collect and store anticipated route information from information service providers to support overall network performance evaluations and predictions.
The center shall exchange information with transit management centers including details current transit routes, the level of service on each route, and the progress of individual vehicles along their routes for use in forecasting demand and estimating current transportation network performance.
The center shall exchange traffic information with other traffic management centers, including incidents, congestion data, traffic data, signal timing plans, and real-time signal control information to support overall network performance evaluations.
The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for network performance evaluations.
The center shall provide an interface to the archive data repository to enable the operator to retrieve historical operating data for use in planning to predict future traffic patterns and conditions.
This center shall use the collected information to measure overall current and forecast network performance and predict travel demand patterns.

Inputs/Outputs (Included Architecture Flows)

Source	Architecture Flow	Destination
Archived Data Management	archived data products	Traffic Management
Emissions Management	widearea statistical pollution information	Traffic Management
Event Promoters	event plans	Traffic Management
Information Service Provider	logged vehicle routes	Traffic Management
Map Update Provider	map updates	Traffic Management
Other Traffic Management	road network conditions	Traffic Management
Roadway	traffic flow	Traffic Management
Traffic Management	archived data product requests	Archived Data Management
Traffic Management	pollution state data request	Emissions Management
Traffic Management	road network conditions	Information Service Provider
Traffic Management	traffic images	Information Service Provider
Traffic Management	map update request	Map Update Provider
Traffic Management	road network conditions	Other Traffic Management
Traffic Management	traffic sensor control	Roadway
Traffic Management	traffic operator data	Traffic Operations Personnel
Traffic Management	request transit information	Transit Management
Traffic Operations Personnel	traffic operator inputs	Traffic Management
Transit Management	transit system data	Traffic Management