Cerillos Road Transit Signal Priority

The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
The transit vehicle shall send priority requests to traffic signal controllers at intersections, pedestrian crossings, and multimodal crossings on the roads (surface streets) and freeway (ramp controls) network that enable a transit vehicle schedule deviation to be corrected.
The transit vehicle shall send the schedule deviation data and status of priority requests to the transit vehicle operator and provide the capability for the transit vehicle operator to control the priority system.
The transit vehicle shall prevent a priority request from being sent when the transit vehicle cannot use the priority (e.g., when the transit vehicle makes a passenger stop on the approach to an intersection).

The field element shall respond to requests for indicator (e.g., signal) preemption requests from emergency vehicles at intersections, pedestrian crossings, and multimodal crossings.
The field element shall respond to requests for indicator (e.g., signal) priority requests from transit vehicles at intersections, pedestrian crossings, and multimodal crossings.
The field element shall notify controlling traffic management center and maintenance center that the signal timing has changed based on a signal preemption/priority request to help those centers determine whether a fault detected at the signal is a true malfunction or due to a signal override.

The center shall respond to requests from transit management centers for signal priority at one or more intersections along a particular transit route.
The center shall exchange information with transit management centers including details current transit routes, the level of service on each route, and the progress of individual vehicles along their routes.

The center shall accept notifications of right-of-way requests from pedestrians.
The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
The center shall collect traffic signal controller fault data from the field.
The center shall implement control plans to coordinate signalized intersections, under control of center personnel, based on data from sensors and surveillance monitoring traffic conditions, incidents, emergency vehicle preemptions, the passage of commercial vehicles with unusual loads, equipment faults, pedestrian crossings, etc.
The center shall remotely control traffic signal controllers.

The center shall send requests for priority along routes or at intersections to traffic management.
The center shall analyze transit vehicle schedule performance to determine the need for priority along certain routes or at certain intersections.

Source	Architecture Flows	Destination
City of Santa Fe Traffic Operations Section	signal control data	City of Santa Fe Traffic Signals
City of Santa Fe Traffic Operations Section	traffic control priority status	Santa Fe Trails Fixed Route Dispatch
City of Santa Fe Traffic Signals	request for right-of-way	City of Santa Fe Traffic Operations Section
City of Santa Fe Traffic Signals	signal control status	City of Santa Fe Traffic Operations Section
Santa Fe Trails Fixed Route Dispatch	traffic control priority request	City of Santa Fe Traffic Operations Section
Santa Fe Trails Fixed Route Transit Vehicles	local signal priority request	City of Santa Fe Traffic Signals
Santa Fe Trails Fixed Route Transit Vehicles	transit vehicle schedule performance	Santa Fe Trails Fixed Route Dispatch

SDO	Document ID	Title	Type
AASHTO/ITE/NEMA	View List	NTCIP Center-to-Center Standards Group	Group
AASHTO/ITE/NEMA	View List	NTCIP Center-to-Field Standards Group	Group
ASTM	View List	Dedicated Short Range Communication at 915 MHz Standards Group	Group
ASTM/IEEE/SAE	View List	Dedicated Short Range Communication at 5.9 GHz 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 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
APTA	APTA TCIP-S-001 3.0.3	Standard for Transit Communications Interface Profiles	Message/Data

Stakeholder	Roles and Responsibilities

Santa Fe Regional ITS Architecture Update