NMDOT Signal Lab - 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: Collect Traffic Surveillance
Management of traffic sensors and surveillance (CCTV) equipment, collection of current traffic conditions, and distribution of the collected information to other centers and operators.
ID | Requirement | Status |
---|---|---|
1 | The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center. | Existing |
5 | The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution. | Existing |
Functional Area: HRI Traffic Management
Remotely monitor and control highway-rail intersection (HRI) equipment, includes standard speed active warning systems and high speed systems which provide additional information on approaching trains and detect and report on obstructions in the HRI.
ID | Requirement | Status |
---|---|---|
1 | The center shall remotely control highway-rail intersection (HRI) equipment located in the field. | Planned |
2 | The center shall accept collect highway-rail intersection (HRI) advisory or alert data from rail operations centers. | Planned |
3 | The center shall collect highway-rail intersection (HRI) equipment operational status and compare against the control information sent by the center. | Planned |
4 | The center shall provide the highway-rail intersection (HRI) equipment operational status to rail operations centers. | Planned |
5 | The center shall collect incident information related to a highway-rail intersection (HRI), such as intersection blockages or crashes or equipment malfunctions. | Planned |
6 | The center shall implement control plans to coordinate signalized intersections around highway-rail intersections (HRI), under control of center personnel, based on data from sensors and surveillance monitoring traffic conditions, incidents, equipment faults, pedestrian crossings, etc. | Planned |
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 |
2 | The center shall accept notifications of pedestrian calls. | 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. | Planned |
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. | Planned |
Functional Area: Traffic Equipment Maintenance
Monitoring and remote diagnostics of field equipment - detect failures, issue problem reports, and track the repair or replacement of the failed equipment.
ID | Requirement | Status |
---|---|---|
1 | The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status. | Existing |
3 | The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair. | Planned |
7 | The center shall exchange data with maintenance centers concerning the reporting of faulty equipment and the schedule/status of their repair. Information exchanged includes details of new equipment faults, and clearances when the faults are cleared. | Planned |