WAMPO Regional ITS Architecture

Skip to main content

City of Andover Roadside Equipment

Status: Near Term

Description: City of Andover's Signal System Equipment.

Stakeholders

Stakeholder	Role	Role Status
City of Andover	Owns	Existing

Physical Objects

ITS Roadway Equipment
Connected Vehicle Roadside Equipment

Functional Objects

Functional Object	Description	User Defined
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

Physical Standards

Document Number	Title	Description
CTI 4001	Roadside Unit (RSU) Standard	This document establishes a non–proprietary, communications–agnostic, industry consensus Roadside Unit (RSU) Standard. An RSU is a transportation infrastructure communications device that is a part of a Cooperative Intelligent Transportation Systems (C–ITS) transportation environment. The goal of such an environment is to reduce the number of fatalities and injuries on roadways, improve mobility, and reduce environmental impacts of transportation systems. Commonly known as the Connected Vehicle (CV) environment in the United States (US), it includes both connected human–driven vehicles and connected automated vehicles (CAVs). The terms Vehicle–to–Infrastructure (V2I) and Vehicle–to–Vehicle (V2V) are used to reflect the exchanges of messages within the CV environment. The vision for this technology has expanded to include all types of travelers including pedestrians, cyclists, multimodal travelers, and other vulnerable road users (VRUs), and is referred to as Vehicle–to–Everything (V2X) technology and V2X communications.
ITE ATC 5201	Advanced Transportation Controller	This 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 5202	Model 2070 Controller Standard	This 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 5301	Intelligent Transportation System Standard Specification for Roadside Cabinets	This standard specifies the characteristics of a modern controller cabinet for the ITS industry.
ITE ATC 5401	Application Programming Interface Standard for the Advanced Transportation Controller	This 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 5	Portable Traffic Signal Systems (PTSS) Standard	This 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 8	Cyber and Physical Security for Intelligent Transportation Systems	This specification describes how agencies and other transportation infrastructure owner/operators should implement cyber– and physical–security for ITS.
NEMA TS2	Traffic Controller Assemblies with NTCIP Requirements	This specification covers traffic signaling equipment used to facilitate and expedite the safe movement of pedestrians and vehicular traffic.
NEMA TS4	Hardware Standards for Dynamic Message Signs (DMS) With NTCIP Requirements	This standard provides hardware specifications for safe, dependable, functional, and easily maintained Dynamic Message Sign (DMS) equipment.

Interfaces To

(View Context Diagram)

City of Andover TOC