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City of Danville TMC

Status:

Existing

Definition:

Manages traffic operations in the City of Danville in the Lynchburg District Area.

Stakeholder:

City of Danville Public Works Department

Architecture Flow Diagrams
which include City of Danville TMC:

• City of Danville TMC City of Danville TMC Field Equipment
• City of Danville TMC Media Outlets
• City of Danville TMC VSP Center

Architecture Flows
to/from the City of Danville TMC:

City of Danville TMC City of Danville TMC Field Equipment

• traffic detector control


• video surveillance control

City of Danville TMC Media Outlets

• traffic information for media


• traveler information for media

City of Danville TMC VSP Center

• evacuation coordination


• incident information


• incident response coordination


• incident response status


• resource deployment status


• road network conditions

City of Danville TMC Field EquipmentCity of Danville TMC

• roadway dynamic signage status


• traffic detector data


• traffic images

Media OutletsCity of Danville TMC

• external reports

VSP CenterCity of Danville TMC

• evacuation coordination


• incident information


• incident response coordination


• incident response status


• resource request

National ITS Architecture Subsystems
mapped to the City of Danville TMC:

• Archived Data System Subsystem
• Archived Data User System Terminator
• Data Distribution System Subsystem
• Emergency Management Center Subsystem
• Traffic Management Center Subsystem
• Transportation Information Center Subsystem

National ITS Architecture Services
associated with City of Danville TMC:

• TM01 - Infrastructure-Based Traffic Surveillance - City of Danville TMC -- (Graphic)

National ITS Architecture Functional Requirements
associated with City of Danville TMC:

TMC Incident Detection

1. The center shall support requests from emergency management centers and border inspection systems to remotely control sensor and surveillance equipment located in the field.
2. The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters and traveler information service providers.
3. The center shall receive inputs from the Alerting and Advisory System concerning the possibility or occurrence of severe weather, terrorist activity, or other major emergency, including information provided by the Emergency Alert System.
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.

TMC Traffic Information Dissemination

1. The center shall distribute traffic data to the media.
2. The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, parking facilities, and traveler information providers.
3. 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.

TMC Basic Surveillance

1. The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
2. The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers.
3. The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.

TMC Work Zone Traffic Management

1. The center shall receive proposed maintenance and construction work plans, analyze the activity as a possible traffic incident, and provide work plan feedback to the sending center.

TMC Signal Control

1. 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.
2. The center shall remotely control traffic signal controllers.
3. The center shall accept notifications of pedestrian calls.

TMC Regional Traffic Management

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.

TMC Evacuation Support

1. The center shall coordinate evacuation information and controls with other traffic management centers.
2. 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.
3. 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.
4. 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.

TMC Incident Dispatch Coordination

1. The center shall coordinate information and controls with other traffic management centers.
2. The center shall exchange road network status assessment information with emergency management and maintenance centers including an assessment of damage sustained by the road network including location and extent of the damage, estimate of remaining capacity, required closures, alternate routes, necessary restrictions, and time frame for repair and recovery.
3. The center shall provide road network conditions and traffic images to emergency management centers, maintenance and construction centers, and traveler information service providers.
4. 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.
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.
6. 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.
7. The center shall support requests from emergency management centers to remotely control sensor and surveillance equipment located in the field, provide special routing for emergency vehicles, and to provide responding emergency vehicles with signal preemption.
8. The center shall coordinate planning for incidents with emergency management centers - including pre-planning activities for disaster response, evacuation, and recovery operations.
9. 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.