Online Services | Commonwealth Sites | Help | Governor


VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC

Status:

Existing

Definition:

VDOT Monitor-Merrimac Memorial Bridge-Tunnel(MMMBT) TOC provides traffic control, surveillance, incident detection, and traffic information dissemination. It also has a centralized traffic management center which has interface with VDOT ERO TOC.

Stakeholder:

VDOT ERO Region

Systems Interconnected
with the VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC


Architecture Flow Diagrams
which include VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC:

Architecture Flows
to/from the VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC:

VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT Critical Infrastructure Security System VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT Hampton Roads District Maintenance and Construction Residencies VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT Hampton Roads SSP Vehicles VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT Hampton Roads TOC VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC Field Equipment VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VDOT VaTraffic VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC flows into icon VSP Center City of Suffolk TOCflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT Critical Infrastructure Security Systemflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT Hampton Roads District Maintenance and Construction Residenciesflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT Hampton Roads SSP Vehiclesflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT Hampton Roads TOCflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC Field Equipmentflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VDOT VaTrafficflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC VSP Centerflows into iconVDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC

National ITS Architecture Subsystems
mapped to the VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC:

National ITS Architecture Services
associated with VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC:

National ITS Architecture Functional Requirements
associated with VDOT Monitor-Merrimac Memorial Bridge-Tunnel (MMMBT) TOC:

Center Secure Area Surveillance
  1. The center shall remotely monitor video images and audio surveillance data collected in secure areas including facilities (e.g. transit yards) and transportation infrastructure (e.g. bridges, tunnels, interchanges, roadway infrastructure, and transit railways or guideways). The data may be raw or pre-processed in the field.
  2. The center shall exchange surveillance data with other emergency centers.
  3. The center shall identify potential security threats based on collected security surveillance data.
  4. The center shall respond to control data from center personnel regarding security surveillance data collection, processing, threat detection, and image matching.
  5. The center shall monitor maintenance status of the security sensor field equipment.
Center Secure Area Sensor Management
  1. The center shall remotely monitor and control security sensor data collected in secure areas including facilities (e.g. transit yards) and transportation infrastructure (e.g. bridges, tunnels, interchanges, roadway infrastructure, and transit railways or guideways). The types of security sensor data include environmental threat (e.g. chemical agent, toxic industrial chemical, biological, explosives, and radiological sensors), infrastructure condition and integrity, intrusion and motion, and object detection sensors. The data may be raw or pre-processed in the field.
  2. The center shall exchange security sensor data with other emergency centers.
  3. The center shall identify potential security threats based on collected security sensor data.
  4. The center shall disseminate threat information to other agencies, including traffic, transit, maintenance, rail operations, and other emergency management centers.
  5. The center shall request activation of barriers and safeguards on request from center personnel.
  6. The center shall monitor maintenance status of the security sensor field equipment.
Center Secure Area Alarm Support
  1. The center shall collect silent and audible alarms received from travelers in secure areas (such as transit stops, rest areas, park and ride lots, modal interchange facilities).
  2. After the alarm message has been received, the center shall generate an alarm acknowledgment to the sender.
  3. After the alarm message becomes a verified incident, the center shall determine the appropriate response.
  4. The center shall determine whether the alarm message indicates an emergency that requires the attention of public safety agencies, and forward alarm message data to the appropriate agency as necessary.
  5. The center shall forward the alarm message to center personnel and respond to the traveler or transit vehicle operator as directed by the personnel.
Basic Information Broadcast
  1. The center shall disseminate traffic and highway condition information to travelers, including incident information, detours and road closures, event information, recommended routes, and current speeds on specific routes.
  2. The center shall disseminate maintenance and construction information to travelers, including scheduled maintenance and construction work activities and work zone activities.
Collect Traffic Surveillance
  1. The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
  2. The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.
  3. The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers.
  4. The center shall maintain a database of surveillance and sensors and the freeways, surface street and rural roadways, e.g. where they are located, to which part(s) of the network their data applies, the type of data, and the ownership of each link (that is, the agency or entity responsible for collecting and storing surveillance of the link) in the network.
TMC Freeway Management
  1. The center shall remotely control systems to manage use of the freeways, including ramp meters, mainline metering, and lane controls.
  2. The center shall collect operational status from ramp meters, mainline metering, and lane controls and compare against the control information sent by the center.
  3. The center shall collect fault data from ramp meters, mainline metering, and lane controls.
  4. The center shall implement control strategies, under control of center personnel, on some or all of the freeway network devices (e.g. ramp meters, mainline metering, and lane controls), based on data from sensors monitoring traffic conditions upstream, downstream, and queue data on the ramps themselves.
TMC Traffic Information Dissemination
  1. The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
  2. The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
  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.
  4. The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, and traveler information providers.
TMC Incident Detection
  1. 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.
  2. The center shall collect and store traffic flow and image data from the field equipment to detect and verify incidents.
  3. The center shall receive inputs concerning upcoming events that would effect the traffic network from event promoters, traveler information service providers, border crossings, and intermodal freight depots.
  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.
  5. The center shall provide road network conditions and traffic images to emergency management centers to support the detection, verification, and classification of incidents.
  6. The center shall provide video and traffic sensor control commands to the field equipment to detect and verify incidents.
TMC Evacuation Support
  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.
  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.
  3. The center shall coordinate information and controls with other traffic management centers.
  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.
Barrier System Management
  1. The center shall remotely control barrier systems for transportation facilities and infrastructure. Barrier systems include automated or remotely controlled gates, barriers and other systems that manage entry to roadways.
  2. The center shall collect barrier system operational status.
  3. The center shall collect barrier system fault data and send to the maintenance center for repair.
  4. The center shall accept requests for barrier system activation from other centers and from center personnel to support emergency response and detours.
Traffic Data Collection
  1. The center shall collect traffic management data such as operational data, event logs, etc.
  2. The center shall assign quality control metrics and meta-data to be stored along with the data. Meta-data may include attributes that describe the source and quality of the data and the conditions surrounding the collection of the data.
  3. The center shall receive and respond to requests from ITS Archives for either a catalog of the traffic data or for the data itself.
  4. The center shall be able to produce sample products of the data available.