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Equipment Package: TMC Signal Control

Description: This equipment package provides the capability for traffic managers to monitor and manage the traffic flow at signalized intersections. This capability includes analyzing and reducing the collected data from traffic surveillance equipment and developing and implementing control plans for signalized intersections. Control plans may be developed and implemented that coordinate signals at many intersections under the domain of a single traffic management subsystem. In advanced implementations, this package collects route planning information and integrates and uses this information in predicting future traffic conditions and optimizing the traffic control strategy for these conditions. These capabilities are achieved through real-time communication of logged routes from an Information Service Provider. The planned control strategies can be passed back to the Information Service Provider so that the intended strategies can be reflected in future route planning.
Included In: Atlantic City Area Joint Operations Center
DelDOT TMC
DRBA TMC
DRJTBC Facility Operations Center
I-95 CC Information Exchange Network
National Park Service Management Center
New York City Joint TMC
NJDEP State Parks
NJDOT STOC
NJDOT TOC Central
NJDOT TOC North
NJDOT TOC South
NJSP/NJDOT Statewide Dispatch Center
NJTA Parkway Division TOC
NJTA Turnpike TOC
NYSDOT IEN
NYSDOT Region 8 TMC
NYSTA Operations Center
PANYNJ Port Commerce Operations Centers
PANYNJ TB/T Bus Terminals/Stations Communications Desk/Operations Center
PennDOT Statewide TOC
PTC Operations Center
RIMIS IEN
SJTA TOC
TRANSCOM Communications Center Servers
TRANSMIT Agencies TRANSMIT Servers
Processes: 1.1.2.2 - Process Traffic Data
1.1.4.2 - Provide Traffic Operations Personnel Traffic Data Interface
1.2.1 - Select Strategy
1.2.2.2 - Determine Indicator State for Road Management
1.2.4.1 - Output Control Data for Roads
User Service Requirements: 1.0 - TRAVEL AND TRAFFIC MANAGEMENT
1.5.2 - TSI shall include an Information Access function that allows travelers to access the available information.
1.5.2.5 - Information Access shall provide the capability for travelers to access the TSI information via any of, but not limited to, the following methods:
1.5.2.5(a) - Highway advisory radio.
1.6 - TRAFFIC CONTROL
1.6.0 - ITS shall include a Traffic Control (TC) function. Traffic Control provides the capability to efficiently manage the movement of traffic on streets and highways. Four functions are provided, which are, (1) Traffic Flow Optimization, (2) Traffic Surveillance, (3) Control, and (4) Provide Information. This will also include control of network signal systems with eventual integration of freeway control.
1.6.1 - TC shall include a Traffic Flow Optimization function to provide the capability to optimize traffic flow.
1.6.1.1 - Traffic Flow Optimization shall employ control strategies that seek to maximize traffic-movement efficiency.
1.6.1.1.1 - Traffic-movement control shall manage movement of traffic on streets.
1.6.1.1.2 - Traffic-movement control shall manage movement of traffic on highways.
1.6.1.1.3 - Traffic-movement control shall include the goal of minimizing delay times.
1.6.1.1.4 - Traffic-movement control shall include the goal of minimizing energy use.
1.6.1.1.5 - Traffic-movement control shall include the goal of minimizing air quality impacts due to traffic.
1.6.1.2 - Traffic Flow Optimization shall include a wide area optimization capability, to include several jurisdictions.
1.6.1.2.1 - Wide area optimization shall integrate the control of network signal systems with the control of freeways.
1.6.1.2.2 - Wide area optimization shall include features that provide preferential treatment for transit vehicles.
1.6.1.2.3 - Wide area optimization shall include features that provide preferential treatment for HOV.
1.6.1.3 - Traffic Flow Optimization shall be implemented in a manner that seeks to optimize traffic movement over a large geographic area.
1.6.1.4 - Traffic Flow Optimization shall include a Control function that is responsive to both the current demand as well as the expected demand.
1.6.1.4.1 - The Control function shall include the capability to facilitate the dissipation of traffic congestion.
1.6.1.5 - Traffic Flow Optimization shall provide the capability to predict travel patterns.
1.6.1.6 - The Control function shall include the use of data acquired from traffic surveillance as feedback to the control strategies.
1.6.1.7 - Implementation of the Control function shall include strategies that account for at least the following:
1.6.1.7(a) - Human factors.
1.6.1.7(b) - Driver/traveler behavior and expectancies.
1.6.2 - TC shall include a Traffic Surveillance function.
1.6.2.2 - Traffic Surveillance shall include a data collect function to provide the capability to collect data for determining traffic flow and prediction.
1.6.2.2.1 - The data collect function shall provide the capability to quickly feedback traffic data to the control processes.
1.6.2.3 - Traffic Surveillance shall include a wide-area surveillance capability to include several jurisdictions.
1.6.2.3.2 - The wide-area surveillance shall cover a large number of roadway segments.
1.6.2.4 - TC shall provide the capability to acquire detailed traffic measurements at specific locations.
1.6.2.4.1 - Traffic Surveillance shall include a data process function to process the traffic data which are acquired.
1.6.3 - TC shall include a Device Control function.
1.6.3.1 - The Device Control function shall include a "real-time" traffic-adaptive control capability.
1.6.3.2 - The real-time traffic-adaptive control portion of the Device Control function shall be an area wide control to include several jurisdictions.
1.6.3.2.1 - The area wide control shall be implemented in an integrated and consistent manner that avoids the issuance of conflicting controls.
1.6.3.2.2 - The area wide control shall be implemented in a manner that permits the following types of vehicles to have preference over other vehicles being controlled.
1.6.3.3 - The Device Control function shall provide the capability to exercise control over those devices utilized for traffic control.
1.6.3.3.1 - Device Control shall include the capability to control traffic signalization, including rapid modification of signalization parameters to respond to traffic requirements.
1.6.3.3.2 - Device Control shall include the capability to dynamically control traffic signing.
1.6.3.3.3 - Device Control shall include the capability to control freeway ramp metering.
1.6.3.3.4 - Device Control shall include the capability to exercise dynamic control over the infrastructure (such as reversible-lanes, turning restrictions, etc.).
1.6.3.4 - Device Control shall communicate control data to the following devices.
1.6.3.4(a) - Traffic signals.
1.6.3.4(e) - Human operator support.
1.6.3.4.1 - Traffic Surveillance shall include a data process function to process the traffic data which are acquired.
1.6.3.5 - Device Control shall provide the operator with the capability to manually override the system's automatic controls.
1.6.3.6 - Device Control shall provide the operator the capability to adaptively change system response in order to provide a response that is coordinated with other TMCs responding to incidents.
1.7 - INCIDENT MANAGEMENT
1.7.1 - Incident Management shall provide an Incident Identification function to identify incidents.
1.7.1.1 - The Incident Identification function shall include the capability to identify predicted incidents.
1.7.1.1.1 - The Incident Identification function shall use information from the following types of sources, where available, to identify predicted incidents:
1.7.1.1.1(a) - Traffic flow sensors.
1.7.1.1.1(b) - Environmental sensors.
1.8 - TRAVEL DEMAND MANAGEMENT
1.8.1 - TDM shall include a communications function.
1.8.1.4 - The communications function shall provide the capability to send information and data as needed to implement management and control strategies that respond to changing environments, conditions, and policy needs to include, but not limited to, the following:
1.8.1.4(a) - Sensor data.
1.8.2 - TDM shall include a processing function.
1.8.2.3 - Strategies developed by the processing function shall include the guidance for the operation of physical systems that:
1.8.2.3(a) - Monitor traffic.
1.8.2.3(d) - Detect traffic.
1.10 - HIGHWAY RAIL INTERSECTION
1.10.0 - ITS shall include a Highway-Rail Intersection (HRI) function to control highway and rail traffic in at-grade HRIs. Two sub-services are supported: Standard Speed Rail Subservice which is applicable to light rail transit, commuter rail and heavy rail trains with operational speeds up to 79 miles per hour (MPH); and High Speed Rail Subservice which is applicable to all passenger and freight trains with operational speeds from 80 to 125 MPH.
1.10.3 - At all HRIs with active railroad warning systems, HRI shall manage the traffic in the intersection.
1.10.3.3 - HRI shall provide an Intelligent Intersection Controller (IIC) function to manage highway and rail traffic in the intersection.
1.10.3.3.5 - IIC function shall report real-time HRI traffic status as advisories or alerts.
1.10.5 - HRI shall provide a High Speed Rail (HSR) Subservice for HRIs on rail lines with operational speeds between 80 and 125 MPH.
1.10.5.2 - HSR shall provide special safety features to enhance safety.
1.10.5.2.6 - HSR shall provide HRI status to highway vehicles as either a "STOP FOR TRAIN" or a "PROCEED" indication.
5.0 - EMERGENCY MANAGEMENT
5.1 - EMERGENCY NOTIFICATION AND PERSONAL SECURITY
5.1.3 - ENPS shall include a Remote Security and Emergency Monitoring (RSEM) function to create an environment of safety in secure areas.
5.1.3.5 - RSEM shall include a Physical Security System (PSS) function.
5.1.3.5.2 - PSS shall allow system operators to monitor and control operation of the physical security system devices, including operator override.
5.1.3.5.3 - PSS shall provide current status of the system including readiness and activation to operators.
5.2 - EMERGENCY VEHICLE MANAGEMENT
5.2.3 - EVM Service shall include a Signal Priority System.
5.2.3.1 - Signal Priority System shall maintain real-time information on signal timing, emergency vehicle locations and emergency vehicle routing.
5.2.3.2 - Signal Priority System shall determine signal prioritize timing sequences for relevant signals.
5.3 - DISASTER RESPONSE AND EVACUATION
5.3.0 - ITS shall provide a Disaster Response and Evacuation (DRE) function that provides for effective, coordinated management of the surface transportation system during all types of disasters including natural disasters (hurricanes, earthquakes, floods, severe winter storms, tsunamis, etc.), terrorist acts, and other catastrophic events (e.g., nuclear power plant disasters). Two primary subservices are provided: (1) Disaster Response and (2) Evacuation Coordination. The Disaster Response Subservice provides support for planning, transportation management, resource sharing, and information coordination between transportation agencies and principal responding agencies (emergency management, public safety, and other allied agencies) to improve the effectiveness and safety of a disaster response. The Disaster Response Subservice consists of eight major functions: 1) Coordinate Response Plans, 2) Monitor Alert Levels, 3) Detect and Verify Emergency, 4) Assess Infrastructure Status, 5) Coordinate Response, 6) Critical Service Restoration, 7) Manage Area Transportation, and 8) Disaster Traveler Information. The Evacuation Coordination (EC) Subservice efficiently manages an evacuation and provides evacuees with the information they need during evacuation and subsequent reentry to the evacuated area. The Evacuation Coordination (EC) subservice includes four additional major functions: 9) Evacuation Planning Support, 10) Evacuation Traveler Information, 11) Evacuation Transportation Management, and 12) Evacuation Resource Sharing.
5.3.11 - Evacuation Coordination shall provide an Evacuation Transportation Management (ETM) function to assist evacuation coordination personnel as they manage evacuation operations.
5.3.11.10 - ETM shall have a lane reversal management function.
7.0 - INFORMATION MANAGEMENT
7.1 - ARCHIVED DATA FUNCTION
7.1.0 - ITS shall provide an Archived Data Function to control the archiving and distribution of ITS data. The Archived Data User Service provides the Historical Data Archive Repositories and controls the archiving functionality for all ITS data with five major functions: 1) the Operational Data Control function to manage operations data integrity; 2) the Data Import and Verification function to acquire historical data from the Operational Data Control function; 3) the Automatic Data Historical Archive function for permanently archiving the data; 4) the Data Warehouse Distribution function, which integrates the planning, safety, operations, and research communities into ITS and processes data products for these communities; and 5) the ITS Community Interface which provides the ITS common interface to all ITS users for data products specification and retrieval. ADUS helps achieve the ITS information goal of unambiguous interchange and reuse of data and information throughout all functional areas.
7.1.3 - The Archived Data Function shall include a Data Import and Verification (DIV) function to acquire historical data from the Operational Data Control function.
7.1.3.1 - DIV shall be capable of importing selected ITS Operational data from the ITS Operational Repositories.
7.1.3.1.9 - DIV shall be capable of importing data on ITS Physical Characteristics of Transportation Infrastructure to include:
7.1.3.1.9(a) - Roadway network attributes.

Last updated: 02-11-05