New York Sub-Regional ITS Architecture

Element Expanded Functional Requirements: NYSDOT R11 New York City Area ATMS

Functional Area: 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 monitor, analyze, and store multimodal crossing and high occupancy vehicle (HOV) lane sensor data under remote control of the center.
  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.
  5. The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
  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 )
  7. The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for traffic data.
Functional Area: TMC Traffic Metering
  1. The center shall remotely control systems to manage use of the freeways, including ramp, interchange, and mainline metering.
  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.
  3. The center shall collect fault data from ramp meters, interchange meters, and mainline meters.
  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, interchange meters, and mainline meters), based on data from sensors monitoring traffic conditions upstream, downstream, and queue data on the approaches to the meters.
Functional Area: TMC HOV Lane Management
  1. The center shall remotely control sensors to detect high-occupancy vehicle (HOV) lane usage.
  2. The center shall remotely control driver information systems to notify users of lane status for lanes that become HOV or High Occupancy Toll (HOT) lanes during certain times of the day on freeways.
  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.
  4. The center shall collect traffic flow measures and information regarding vehicle occupancy (i.e., lane usage) in HOV lanes.
  5. The center shall monitor the use of HOV lanes and detect vehicles that do not have the required number of occupants.
  6. The center shall collect operational status for the freeway control devices associated with HOV lane control.
  7. The center shall collect fault data for the freeway control devices associated with HOV lane control for repair.
  8. The center shall store violation parameters, detect HOV lane violators, obtain the vehicle registration data from the appropriate State Department of Motor Vehicles (DMV) office, and then provide the capability to send violation information to a law enforcement agency.
Functional Area: 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.
  2. The center shall exchange traffic control information with other traffic management centers to support remote monitoring and control of traffic management devices (e.g. signs, sensors, signals, cameras, etc.).
Functional Area: TMC Reversible Lane Management
  1. The center shall remotely control devices to detect traffic in reversible lanes, including wrong-way vehicles.
  2. The center shall monitor the use of reversible lanes and detect wrong-way vehicles in reversible lanes using sensor and surveillance information, and the current lane control status (which direction the lane is currently operating).
  3. The center shall remotely control automated reversible lane equipment and driver information systems (such as lane control signals) that control traffic in reversible lanes on surface streets.
  4. The center shall remotely control automated reversible lane equipment and driver information systems (such as lane control signals) that control traffic in reversible lanes on freeways.
  5. The center shall collect operational status for the reversible lane field equipment.
  6. The center shall collect fault data for the reversible lane field equipment and send to the maintenance center for repair.
  7. The center shall provide the capability for center personnel to control access and management of reversible lane facilities, including the direction of traffic flow changes during the day, especially between the peak hours and dedication of more lanes to the congestion direction during special events.
Functional Area: TMC Signal Control
  1. The center shall remotely control traffic signal controllers.
  2. The center shall accept notifications of pedestrian calls.
  3. The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
  4. The center shall collect traffic signal controller fault data from the field.
  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.
  6. The center shall implement control plans to coordinate signalized intersections based on data from sensors.
  7. The center shall manage boundaries of the control sections used within the signal system.
  8. The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.
Functional Area: 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 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.
  3. The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
  4. The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
  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.
  6. The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, and traveler information providers.
  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.
  8. The center shall provide the capability for center personnel to control the nature of the data that is available to non-traffic operations centers and the media.
Functional Area: TMC Variable Speed Limits
  1. The center shall monitor data on traffic and environmental conditions collected from sensors along the roadway.
  2. Based on the measured data, the center shall calculate and set suitable speed limits by lane.
  3. The center shall control field equipment that posts the current speed limits and displays additional information such as basic safety rules and current traffic information to drivers.
  4. The center shall monitor the operational status of the variable speed limit equipment, including fault reports.
  5. The center shall provide center personnel current system status and respond to control data from center personnel regarding variable speed limits and
Functional Area: TMC Dynamic Lane Management and Shoulder Use
  1. The center shall remotely monitor and control dynamically managed travel lanes.
  2. The center shall monitor traffic conditions and demand measured per lane.
  3. The center shall receive input from Border Inspection Systems to identify existing and planned lane configurations at the border.
  4. The center shall receive input from multimodal crossings such as draw bridges to identify existing and planned lane configurations at the crossings.
  5. The center shall receive input from Intermodal Freight Depots to support monitoring and anticipation of commercial vehicle traffic originating at the depot and requests for dynamic lane management in the vicinity of the depot.
  6. The center shall monitor and coordinate dynamic lane controls with adjacent jurisdictions.
  7. Based on the collected data and operator input, the center shall determine suggested and required lane control configuration changes.
  8. The center shall support temporary use of shoulders as travel lanes.
  9. The center shall designate lanes for use by special vehicles only, such as buses, high occupancy vehicles (HOVs), or vehicles attending a special event.
  10. The center shall identify lane use restrictions, prohibiting specific types of vehicles (e.g., commercial vehicles) from specific lanes.
  11. The center shall activate lane management field equipment that is used to dynamically manage specific lanes and shoulders.
  12. The center shall reconfigure intersections and interchanges for compatibility with the current lane configuration.
  13. The center shall notify the enforcement agency of violators of the lane controls.
Functional Area: TMC Roadway Warning
  1. The center shall monitor data on traffic, environmental conditions, and other hazards collected from sensors along the roadway.
  2. The center shall identify hazardous road weather and surface conditions.
  3. The center shall identify hazardous traffic conditions including queues.
  4. The center shall identify debris, animals, or other encroachment on the roadway dangerous to approaching motorists.
  5. The center shall issue control commands to field equipment warning drivers approaching the identified hazardous conditions.
  6. The center shall monitor the operational status of the dynamic warning equipment, including fault reports.