Las Cruces Regional ITS Architecture Update

City of Las Cruces Dilemma Zone Protection

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Description

Deploy dilemma zone protection at traffic signals.

Status

Planned

Timeframe

Medium

Geographic Scope

Las Cruces

Service Scope

Traffic Management

Stakeholders

City of Las Cruces Transportation Department

Inventory

City of Las Cruces Traffic Management Center

City of Las Cruces Traffic Signals

Services

ATMS03-1 - Traffic Signal Control - City of Las Cruces

Functional Areas

Roadway Signal Controls

• The field element shall control traffic signals under center control.
• The field element shall report the current signal control information to the center.
• The field element shall return traffic signal controller operational status to the center.
• The field element shall return traffic signal controller fault data to the center.

TMC Signal Control

• The center shall collect traffic signal controller fault data from the field.
• The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
• The center shall implement control plans to coordinate signalized intersections based on data from sensors.
• The center shall manage boundaries of the control sections used within the signal system.
• The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.
• The center shall remotely control traffic signal controllers.
• The center shall collect traffic signal controller operational status and compare against the control information sent by the center.

Interfaces

Source	Architecture Flows	Destination
City of Las Cruces Traffic Management Center	traffic sensor control	City of Las Cruces Traffic Signals
City of Las Cruces Traffic Management Center	signal control commands	City of Las Cruces Traffic Signals
City of Las Cruces Traffic Signals	signal control status	City of Las Cruces Traffic Management Center
City of Las Cruces Traffic Signals	traffic flow	City of Las Cruces Traffic Management Center
City of Las Cruces Traffic Signals	signal fault data	City of Las Cruces Traffic Management Center

Standards

SDO	Document ID	Title	Type
AASHTO/ITE/NEMA	View List	NTCIP Center-to-Field Standards Group	Group
AASHTO/ITE/NEMA	NTCIP 1201	Global Object Definitions	Message/Data
AASHTO/ITE/NEMA	NTCIP 1202	Object Definitions for Actuated Traffic Signal Controller (ASC) Units	Message/Data
AASHTO/ITE/NEMA	NTCIP 1209	Data Element Definitions for Transportation Sensor Systems (TSS)	Message/Data
AASHTO/ITE/NEMA	NTCIP 1210	Field Management Stations (FMS) - Part 1: Object Definitions for Signal System Masters	Message/Data
AASHTO/ITE/NEMA	NTCIP 1211	Object Definitions for Signal Control and Prioritization (SCP)	Message/Data
AASHTO/ITE/NEMA	NTCIP 1214	Object Definitions for Conflict Monitor Units (CMU)	Message/Data

Operational Concepts

Stakeholder	Roles and Responsibilities
City of Las Cruces Transportation Department
	Operate network monitoring equipment (CCTV Cameras, field sensors, etc.) on City streets.
	Operate traffic signal systems on City owned streets, including traffic signals, sensor systems (CCTV), and right of way requests.