WisDOT_DTSD_BTO_STOC_ATMS - 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 |
|---|---|---|
| 2 | The center shall monitor, analyze, and distribute traffic images from CCTV systems 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 |
| 6 | The center shall maintain a database of surveillance equipment and sensors and associated data (including the roadway on which they are located, the type of data collected, and the ownership of each ) | Existing |
Functional Area: TMC Environmental Monitoring
Management of environmental sensors and assimilation of collected data with other current and forecast road conditions and surface weather information from weather service providers and roadway maintenance operations.
| ID | Requirement | Status |
|---|---|---|
| 2 | The center shall remotely control environmental sensors that measure weather conditions including temperature, wind, humidity, precipitation, and visibility. | Existing |
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. | Existing |
| 4 | The center shall coordinate execution of evacuation strategies with emergency management centers - including activities such as setting closures and detours, establishing routes, updating areas to be evacuated, timing the process, etc. | Existing |
Functional Area: TMC HOV Lane Management
Remotely controls HOV lane sensors, HOV lane usage signals, and ramp meters to manage use of HOV or HOT lanes; also detect HOV violators and notifies enforcement agencies.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall remotely control sensors to detect high-occupancy vehicle (HOV) lane usage. | Existing |
| 3 | The center shall remotely control freeway control devices, such as ramp signals and mainline metering and other systems associated with freeway operations that control use of HOV lanes. | Existing |
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. | Existing |
| 3 | The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters and traveler information service providers. | Existing |
| 6 | The center shall provide road network conditions and traffic images to emergency management centers to support the detection, verification, and classification of incidents. | Existing |
| 7 | The center shall provide video and traffic sensor control commands to the field equipment to detect and verify incidents. | Existing |
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 |
|---|---|---|
| 1 | The center shall exchange alert information and status with emergency management centers. The information includes notification of a major emergency such as a natural or man-made disaster, civil emergency, or child abduction for distribution to the public. The information may include the alert originator, the nature of the emergency, the geographic area affected by the emergency, the effective time period, and information and instructions necessary for the public to respond to the alert. This may also identify specific information that should not be released to the public. | Existing |
| 2 | The center shall coordinate planning for incidents with emergency management centers - including pre-planning activities for disaster response, evacuation, and recovery operations. | Existing |
| 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. | Existing |
| 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. | Existing |
| 7 | The center shall provide road network conditions and traffic images to emergency management centers, maintenance and construction centers, and traveler information service providers. | Existing |
Functional Area: TMC Probe Information Collection
Collects, assimilates, and disseminates vehicle probe data collected from roadside beacons and centers controlling transit vehicles, emergency vehicles, toll collection points, and route-guided vehicles.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall collect traffic probe data from vehicles via roadside field equipment. | 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. | Existing |
Functional Area: TMC Speed Monitoring and Warning
Remotely monitors vehicle speeds, and informs an enforcement agency if excessive speeds are detected. Also configures and controls speed warning systems that provide safe speed advisories to the motorist.
| ID | Requirement | Status |
|---|---|---|
| 2 | The center shall collect operational status for the vehicle speed sensors; the status shall include logged information including measured speeds, warning messages displayed, and violation records. | Existing |
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. | Existing |
| 2 | The center shall remotely control driver information systems that communicate directly from a center to the vehicle radio (such as Highway Advisory Radios) for dissemination of traffic and other information to drivers. | Existing |
| 3 | The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.). | Existing |
| 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. | Existing |
| 6 | The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, and traveler information providers. | Existing |
| 7 | The center shall distribute traffic data to the media; the capability to provide the information in both data stream and graphical display shall be supported. | Existing |
Functional Area: TMC Traffic Metering
Remotely controls ramp meters, interchange connector meters, and mainline meters, covering all types of metering as well as management of bypass lanes.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall remotely control systems to manage use of the freeways, including ramp, interchange, and mainline metering. | Existing |
| 2 | The center shall collect operational status from ramp meters, interchange meters, and mainline meters and compare against the control information sent by the center. | Existing |
Functional Area: TMC Traffic Network Performance Evaluation
Measures performance and predicts travel demand patterns to support traffic flow optimization, demand management, and incident management. Collects data from surveillance equipment as well as input from other management centers including emissions, event promoters, and other TMCs.
| 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 to support overall network performance evaluations. | Existing |
| 3 | The center shall collect and store plans from event promoters for major future events possibly impacting traffic to support overall network performance evaluations. | Existing |
| 4 | The center shall collect and store anticipated route information from information service providers to support overall network performance evaluations and predictions. | Existing |
Functional Area: Traffic Data Collection
Collection and storage of traffic management data. For use by operations personnel or data archives in the region.
| ID | Requirement | Status |
|---|---|---|
| 1 | The center shall collect traffic management data such as operational data, event logs, etc. | Existing |
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 |
| 2 | The center shall collect and store CCTV surveillance system (traffic, pedestrian) operational status. | Existing |