City of Toledo ITS Field Devices

Status: Existing

Description

This element represents the City of Toledo's traffic signals, traffic detectors, cameras, and dynamic message signs. This element also includes City's future ITS technology such as Bluetooth travel time sensors and wrong way vehicle detection and warning systems.

Stakeholders

StakeholderRoleRole Status
City of Toledo Division of TransportationOwnsExisting

Physical Objects

ITS Roadway Equipment

Functional Objects

Functional ObjectDescriptionUser Defined
Roadway Advanced Rail Crossing'Roadway Advanced Rail Crossing' manages highway traffic at highway–rail intersections (HRIs) where operational requirements demand advanced features (e.g., where rail operational speeds are greater than 80 miles per hour). The active warning systems supported by this application include positive barrier systems which preclude entrance into the intersection when the barriers are activated. This application is activated on notification by wayside interface equipment which detects, or communicates with the approaching train. In this application, additional information about the arriving train is also provided by the wayside interface equipment so that the train's direction of travel, its estimated time of arrival, and the estimated duration of closure may be derived. This enhanced information may be conveyed to the driver prior to, or in context with, warning system activation. This application also includes detection capabilities which enable it to detect an entrapped or otherwise immobilized vehicle on the grade crossing and provide an immediate notification to the wayside interface equipment and traffic management.False
Roadway Basic Surveillance'Roadway Basic Surveillance' monitors traffic conditions using fixed equipment such as loop detectors and CCTV cameras.False
Roadway Data Collection'Roadway Data Collection' collects traffic, road, and environmental conditions information for use in transportation planning, research, and other off–line applications where data quality and completeness take precedence over real–time performance. It includes the sensors, supporting roadside infrastructure, and communications equipment that collects and transfers information to a center for archival.False
Roadway Field Device Support'Roadway Field Device Support' monitors the operational status of field devices and detects and reports fault conditions. Consolidated operational status (device status, configuration, and fault information) are reported for resolution and repair. A local interface is provided to field personnel for local monitoring and diagnostics, supporting field maintenance, upgrade, repair, and replacement of field devices.False
Roadway Field Management Station Operation'Roadway Field Management Station Operation' supports direct communications between field management stations and the local field equipment under their control.False
Roadway Mixed Use Crossing Safety'Roadway Mixed Use Crossing Safety' is an advanced infrastructure application that detects pedestrians, cyclists, and other non–motorized users and provides active safety warnings to drivers when cross walks or other intersecting mixed use paths are occupied.False
Roadway Multimodal Crossing Control'Roadway Multimodal Crossing Control' monitors multimodal crossings and monitors and controls traffic control equipment in the vicinity of the crossing. Equipment controlled includes warning lights, gates, dynamic message signs, and other systems associated with multimodal crossings. It manages draw bridges and miscellaneous other crossings between highway traffic and other modes. Railroad grade crossings are covered by other functional objects.False
Roadway Passive Monitoring'Roadway Passive Monitoring' monitors passing vehicles for a signature that can be used to recognize the same vehicle at different points in the network and measure travel times. Depending on the implementation and the penetration rate of the technology that is monitored, other point traffic measures may also be inferred by monitoring the number of vehicles within range over time. Today this approach is implemented most commonly using a Bluetooth receiver that passively monitors Bluetooth devices on–board passing vehicles and license plate readers that record the vehicle license plate number, but any widely deployed vehicle communications technology or feature that can be passively monitored to uniquely identify a vehicle could be used.False
Roadway Signal Control'Roadway Signal Control' includes the field elements that monitor and control signalized intersections. It includes the traffic signal controllers, detectors, conflict monitors, signal heads, and other ancillary equipment that supports traffic signal control. It also includes field masters, and equipment that supports communications with a central monitoring and/or control system, as applicable. The communications link supports upload and download of signal timings and other parameters and reporting of current intersection status. It represents the field equipment used in all levels of traffic signal control from basic actuated systems that operate on fixed timing plans through adaptive systems. It also supports all signalized intersection configurations, including those that accommodate pedestrians. In advanced, future implementations, environmental data may be monitored and used to support dilemma zone processing and other aspects of signal control that are sensitive to local environmental conditions.False
Roadway Signal Monitoring and Enforcement'Roadway Signal Monitoring and Enforcement' includes the field elements that monitor vehicles entering a signalized intersection. Information is collected for vehicles illegally entering the intersection, and the signal violation is reported to the enforcement center. Control and monitoring of the signal monitoring and enforcement equipment is provided with an interface to the Traffic Management Center.False
Roadway Standard Rail Crossing'Roadway Standard Rail Crossing' manages highway traffic at highway–rail intersections (HRIs) where operational requirements do not dictate advanced features (e.g., where rail operational speeds are less than 80 miles per hour). Either passive (e.g., the crossbuck sign) or active warning systems (e.g., flashing lights and gates) are supported depending on the specific requirements for each intersection. These traditional HRI warning systems may also be augmented with other standard traffic management devices. The warning systems are activated on notification of an approaching train by interfaced wayside equipment. The equipment at the HRI may also be interconnected with adjacent signalized intersections so that local control can be adapted to highway–rail intersection activities. Health monitoring of the HRI equipment and interfaces is performed; detected abnormalities are reported through interfaces to the wayside interface equipment and the Traffic Management Center.False
Roadway Time Management'Roadway Time Management' provides foundational time keeping functionality that supports an accurate, synchronized time reference in ITS field equipment. It receives accurate time information from an external source and maintains a local time reference using an internal clock in between time synchronizations.False
Roadway Traffic Information Dissemination'Roadway Traffic Information Dissemination' includes field elements that provide information to drivers, including dynamic message signs and highway advisory radios.False
Roadway Work Zone Traffic Control'Roadway Work Zone Traffic Control' controls traffic in areas of the roadway where maintenance and construction activities are underway, monitoring and controlling traffic using field equipment such as CCTV cameras, dynamic messages signs, and gates/barriers. Work zone speeds and delays are provided to the motorist prior to the work zones.False
Roadway Wrong Way Vehicle Detection'Roadway Wrong Way Vehicle Detection' provides wrong way vehicle detection using traffic detectors and surveillance equipment. It provides potential wrong way vehicle notifications as well as supporting detector data and images to the center for processing and presentation to traffic operations personnel.False

Physical Standards

Document NumberTitleDescription
ITE ATC 5201Advanced Transportation ControllerThis standard defines the functionality and performance requirements for a modern ITS controller known as an ATC. It is similar to the NEMA TS–2 standard in that it defines basic capabilities but leaves hardware choices up to the manufacturer.
ITE ATC 5202Model 2070 Controller StandardThis standard specifies the hardware for a modern, open–architecture controller for ITS applications that can run Linux and is capable of executing advanced signal controller logic, among other things.
ITE ATC 5301Intelligent Transportation System Standard Specification for Roadside CabinetsThis standard specifies the characteristics of a modern controller cabinet for the ITS industry.
ITE ATC 5401Application Programming Interface Standard for the Advanced Transportation ControllerThis standard defines the application programmers' interface (API) that should be supported by an ATC, which is an open–architecture controller that can host multiple ITS applications.
NEMA TS 5Portable Traffic Signal Systems (PTSS) StandardThis standard specifies traffic signaling equipment used to enable and expedite the safe movement of vehicle traffic and the performance of work zone activities.
NEMA TS 8Cyber and Physical Security for Intelligent Transportation SystemsThis specification describes how agencies and other transportation infrastructure owner/operators should implement cyber– and physical–security for ITS.
NEMA TS2Traffic Controller Assemblies with NTCIP RequirementsThis specification covers traffic signaling equipment used to facilitate and expedite the safe movement of pedestrians and vehicular traffic.
NEMA TS4Hardware Standards for Dynamic Message Signs (DMS) With NTCIP RequirementsThis standard provides hardware specifications for safe, dependable, functional, and easily maintained Dynamic Message Sign (DMS) equipment.

Interfaces To

(View Context Diagram)

City of Toledo Automated Traffic Enforcement System
City of Toledo Emergency Vehicles
City of Toledo Maintenance Dispatch (CLIC)
City of Toledo MLK Lift Bridge Operators Tower
City of Toledo Traffic Data Archive
City of Toledo Traffic Management System
County and City Connected Vehicles Roadside Equipment
County and City CV Service Monitoring Systems
Cyclists
Drivers
ODOT Connected Vehicles Roadside Equipment
ODOT Craig Memorial Lift Bridge Tower
Ohio CV Service Monitor System
Pedestrians
Railroad Wayside Equipment
TARPS Paratransit Vehicles
TARTA Fixed Route Vehicles