West Richland Traffic Operations Center - Traffic Management Functionality

Subsystem Description

The Traffic Management Subsystem (TMS) monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. This subsystem communicates with the Roadway Subsystem to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. This subsystem coordinates with the Maintenance and Construction Management Subsystem to maintain the road network and coordinate and adapt to maintenance activities, closures, and detours. Incidents are detected, verified, and incident information is provided to allied agencies, drivers (through Roadway Subsystem highway advisory radio and dynamic message signs), and information service providers. This subsystem also manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters. When required, special traffic management strategies are implemented to support evacuation and reentry. The Traffic Management Subsystem supports HOV lane management and coordination, road pricing, and other demand management policies that can alleviate congestion and influence mode selection. It also manages reversible lane facilities and barrier and safeguard systems that control access to transportation infrastructure. The subsystem communicates with other Traffic Management Subsystems to coordinate traffic information and control strategies in neighboring jurisdictions. It also coordinates with rail operations to support safer and more efficient highway traffic management at highway-rail intersections. Finally, the Traffic Management Subsystem provides the capabilities to exercise control over those devices utilized for automated highway system (AHS) traffic and vehicle control.

Functional Area: TMC Lighting System Control

Provides remote monitoring and control of electrical lighting systems. It implements control plans for lighting systems that may be activated by time-of-day plans or by activating changes to the lighting based on traffic or incidents.

ID	Requirement	Status
1	The center shall remotely control electrical lighting systems.	Existing
2	The center shall collect lighting system operational status and compare against the control information sent by the center.	Existing
3	The center shall collect lighting system fault data from the field and send to the maintenance center for repair.	Existing

Functional Area: TMC Signal Control

Remotely controls traffic signal controllers to implement traffic management strategies at signalized intersections based on traffic conditions, incidents, emergency vehicle preemptions, pedestrian crossings, etc.

ID	Requirement	Status
1	The center shall remotely control traffic signal controllers.	Existing
3	The center shall collect traffic signal controller operational status and compare against the control information sent by the center.	Existing
4	The center shall collect traffic signal controller fault data from the field.	Existing
5	The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.	Existing
8	The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.	Existing