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Equipment Package: Roadway Speed Monitoring

Description: This equipment package monitors vehicle speeds. If the speed is determine to be excessive, then roadside equipment can suggest a safe driving speed. Environmental conditions may be monitored and factored into the safe speed advisories that are provided to the motorist. This equipment package can also provide an enforcement function, reporting speed violations to an enforcement agency.
Included In: NJDOT North ITS Field Equipment
Processes: 1.1.1.1 - Process Traffic Sensor Data
1.2.7.9 - Process Roadway Information Data
9.3.3.1 - Collect Vehicle Speed
9.3.3.4 - Support Vehicle Speed Enforcement
User Service Requirements: 1.0 - TRAVEL AND TRAFFIC MANAGEMENT
1.5 - TRAVELER SERVICES INFORMATION
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
1.6.2 - TC shall include a Traffic Surveillance function.
1.6.2.1 - Traffic Surveillance shall include a vehicle detection function with the capability of accurately detecting vehicles in a real-time fashion.
1.6.2.1.1 - Vehicle detection shall include the capability to determine those vehicles that are HOVs.
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.
1.6.2.3.1 - The wide-area surveillance shall gather speed and flow information.
1.6.2.4 - TC shall provide the capability to acquire detailed traffic measurements at specific locations.
1.6.3 - TC shall include a Device Control function.
1.6.3.3 - The Device Control function shall provide the capability to exercise control over those devices utilized for traffic control.
1.6.3.3.2 - Device Control shall include the capability to dynamically control traffic signing.
1.6.3.4 - Device Control shall communicate control data to the following devices.
1.6.3.4(c) - Information signs.
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.
1.8 - TRAVEL DEMAND MANAGEMENT
1.8.0 - ITS shall include a Travel Demand Management (TDM) function. Travel Demand Management will generate and communicate management and control strategies that will support and facilitate the implementation of TDM programs, policies and regulations. It consists of two major functions, which are, (1) Increase Efficiency of Transportation System and (2) Provide Wide Variety of Mobility Options.
1.8.3 - TDM shall include a sensors/control function.
1.8.3.1 - The sensors/control function shall provide the capability to gather information needed for the generation of management and control strategies to include, but not be limited to the, following:
1.8.3.1(b) - Usage levels.
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.
5.1.3.5.4 - PSS shall warn travelers of impending security system deployment via local information systems.
5.1.5 - ENPS shall include a Protect Sensitive Traveler Information (PSTI) function to inhibit distribution of traveler information that is deemed to be sensitive.
5.1.5.1 - PSTI shall notify transportation operators and information providers when access to information from ITS surveillance and sensor systems must be restricted.
5.1.5.2 - The PSTI notification shall identify the geographic area, time, specific devices, and/or other information necessary to determine the traveler information that must be protected.
5.1.5.3 - PSTI shall restrict access to traveler information for the affected area until access restrictions are removed.
5.1.5.4 - PSTI shall notify transportation operators and information providers when traveler information access restrictions are removed.
8.0 - MAINTENANCE AND CONSTRUCTION MANAGEMENT
8.1 - MAINTENANCE AND CONSTRUCTION OPERATIONS
8.1.3 - Maintenance and Construction Operations shall provide a Work Zone Management and Safety (WZMS) function, which provides support for the effectiveness, safety, and efficiency of roadway operations during all work zone activities. This function includes interactions among Traffic Managers, Supervisors, Dispatchers, Field Crews, Construction Crews, Public Safety Organizations, Information Service Providers, and Travelers.
8.1.3.1 - WZMS shall monitor, control, and direct activity in the vicinity of work zones.
8.1.3.1.1 - WZMS shall provide information about work zones, including but not limited to:
8.1.3.1.1(a) - Anticipated delays
8.1.3.1.1(b) - Alternate routes
8.1.3.1.1(c) - Suggested speed limit
8.1.3.1.2 - WZMS shall provide support for automated speed enforcement around work zones.
8.1.3.1.3 - WZMS shall be able to divert vehicles around work zones via automated lane changing techniques.
8.1.3.1.3.1 - WZMS shall collect information used to support automated lane changing, including but not limited to:
8.1.3.1.3.1(a) - Volume
8.1.3.1.3.1(b) - Occupancy
8.1.3.1.3.1(c) - Speed
8.1.3.1.3.1(d) - Headways
8.1.3.1.3.1(e) - Vehicle characteristics
8.1.3.1.3.1(f) - Merging distance
8.1.3.3 - WZMS shall provide systems that communicate reliable, accurate, and timely traveler information, including but not limited to:
8.1.3.3(a) - Location, including lane closure information
8.1.3.3(b) - Alternate route / detour
8.1.3.3(c) - Work zone speed limit
8.1.3.3(d) - Delay

Last updated: 02-11-05