North Texas Tollway Authority Roadway Devices

Status

Existing

Description

North Texas Tollway Authority Roadway Devices are devices typically located along the tollways and are controlled by operators in the North Texas Tollway Authority Traffic Management Center. These devices aid operators in the traffic management center with the monitoring and managing of the tollway's traffic conditions. The field equipment that aids these operators include Traffic Signal Systems, DMS, traffic detectors and CCTV Cameras.

Stakeholders

StakeholderRoleRole Status
North Texas Tollway AuthorityOwnsExisting

Physical Objects

ITS Roadway Equipment
Connected Vehicle Roadside Equipment

Functional Objects

Functional ObjectDescriptionUser Defined
Roadway Basic Surveillance'Roadway Basic Surveillance' monitors traffic conditions using fixed equipment such as loop detectors and CCTV cameras.False
Roadway Incident Detection'Roadway Incident Detection' provides incident detection using traffic detectors and surveillance equipment. It monitors for unusual traffic conditions that may indicate an incident or processes surveillance images, watching for potential incidents. It provides potential incident information as well as traffic flow and images to the center for processing and presentation to traffic operations personnel.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 Traffic Information Dissemination'Roadway Traffic Information Dissemination' includes field elements that provide information to drivers, including dynamic message signs and highway advisory radios.False

Physical Standards

SDODocument #TitleUser Defined
ITEITE ATC 5201Advanced Transportation Controller (ATC)False
ITE ATC 5202Model 2070 Controller StandardFalse
ITE ATC APIApplication Programming Interface (API) Standard for the Advanced Transportation Controller (ATC)False
ITE ITS CabinetITS Standard Specification for Roadside CabinetsFalse
NEMANEMA TS 2Traffic Controller Assemblies with NTCIP RequirementsFalse
NEMA TS 4Hardware Standards for Dynamic Message Signs (DMS) with NTCIP RequirementsFalse
NEMA TS 8Cyber and Physical Security for Intelligent Transportation Systems (ITS)False
USDOTRSU V4USDOT Roadside Unit (RSU) Specification Document – Version 4False

Interfaces To

(View Context Diagram)

North Texas Tollway Authority Traffic Management Center