NMSU 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: 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. | Planned |
| 2 | The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center. | Planned |
| 4 | The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers. | Planned |
| 5 | The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution. | Planned |
Functional Area: TMC Evacuation Support
Development, coordination, and execution of special traffic management strategies during evacuation and subsequent reentry of a population in the vicinity of a disaster or major emergency. Interfaces with emergency management and other traffic management centers.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall coordinate planning for evacuation with emergency management centers - including pre-planning activities such as establishing routes, areas to be evacuated, timing, etc. | Planned |
| 2 | The center shall support requests from emergency management centers to preempt the current traffic control strategy, activate traffic control and closure systems such as gates and barriers, activate safeguard systems, or use driver information systems to support evacuation traffic control plans. | Planned |
| 3 | The center shall coordinate information and controls with other traffic management centers. | Planned |
Functional Area: TMC Incident Detection
Remotely monitors traffic sensor and surveillance systems to detect and verify incidents. Also monitors external advisory and incident reporting systems, intermodal freight depots, and border crossings for additional incident information. Identified incidents are reported to operations personnel and other centers.
| ID | Requirement | Status |
|---|---|---|
| 2 | The center shall collect and store traffic flow and image data from the field equipment to detect and verify incidents. | Planned |
| 3 | The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters and traveler information service providers. | Planned |
| 4 | The center shall exchange incident and threat information with emergency management centers as well as maintenance and construction centers; including notification of existence of incident and expected severity, location, time and nature of incident. | Planned |
| 5 | The center shall support requests from emergency management centers and border inspection systems to remotely control sensor and surveillance equipment located in the field. | Planned |
| 6 | The center shall provide road network conditions and traffic images to emergency management centers to support the detection, verification, and classification of incidents. | Planned |
| 7 | The center shall provide video and traffic sensor control commands to the field equipment to detect and verify incidents. | Planned |
Functional Area: TMC Incident Dispatch Coordination/Communication
Formulates an incident response that takes into account the incident potential, incident impacts, and/or resources required for incident management. Facilitates the dispatch of emergency response and service vehicles and coordinates the response with cooperating agencies.
| ID | Requirement | Status |
|---|---|---|
| 2 | The center shall coordinate planning for incidents with emergency management centers - including pre-planning activities for disaster response, evacuation, and recovery operations. | Planned |
| 4 | The center shall exchange incident information with emergency management centers, maintenance and construction centers, transit centers, information service providers, and the media including description, location, traffic impact, status, expected duration, and response information. | Planned |
| 5 | The center shall share resources with allied agency centers to implement special traffic control measures, assist in clean up, verify an incident, etc. This may also involve coordination with maintenance centers. | Planned |
| 6 | The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters, traveler information service providers, media, border crossings, and rail operations centers. | Planned |
Functional Area: TMC Regional Traffic Management
Coordination between traffic management centers in order to share traffic information between centers as well as control of traffic management field equipment. This may be used during incidents and special events and during day-to-day operations.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall exchange traffic information with other traffic management centers including incident information, congestion data, traffic data, signal timing plans, and real-time signal control information. | Planned |
Functional Area: TMC Traffic Information Dissemination
Controls dissemination of traffic-related data to other centers, the media, and travelers via the driver information systems (DMS, HAR) that it operates.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers. | Planned |
| 3 | The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.). | Planned |
| 4 | The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair. | Planned |
| 5 | The center shall retrieve locally stored traffic information, including current and forecasted traffic information, road and weather conditions, traffic incident information, information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements), and the definition of the road network itself. | 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. | Planned |
| 3 | The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair. | Planned |