Indianapolis Transit Signal Priority

Project Description: This project will implement transit signal priority at intersections operated by the City of Indianapolis on the city–maintained roads.

Project Status: Existing

Project Stakeholders:

Project Inventory:

Interconnect and Flow

Diagrams

Project Service Packages:

PT09: Transit Signal Priority (Indianapolis Transit Signal Priority)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
local signal priority request	IndyGo Transit Vehicles	Indianapolis DPW Roadside Equipment	Existing
right-of-way request notification	Indianapolis DPW Roadside Equipment	Indianapolis DPW Operations Center	Existing
signal control commands	Indianapolis DPW Operations Center	Indianapolis DPW Roadside Equipment	Existing
signal control status	Indianapolis DPW Roadside Equipment	Indianapolis DPW Operations Center	Existing
traffic control priority request	IndyGo Operations Center	Indianapolis DPW Operations Center	Existing
traffic control priority status	Indianapolis DPW Operations Center	IndyGo Operations Center	Existing
transit vehicle schedule performance	IndyGo Transit Vehicles	IndyGo Operations Center	Existing

Project Functional Requirements (Element - Functional Object):

Indianapolis DPW Operations Center - TMC Signal Control

1: The center shall remotely control traffic signal controllers.
10: The center shall adjust signal timing in respond to a signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other requests for right-of-way.

Indianapolis DPW Roadside Equipment - Roadway Signal Control

1: The field element shall control traffic signals under center control.
10: The field element shall receive request for transit vehicle signal priority.
6: The field element shall return traffic signal controller operational status to the center.
8: The field element shall report current transit priority status to the center.

IndyGo Operations Center - Transit Center Priority Management

1: The center shall analyze transit vehicle schedule performance to determine the need for priority along certain routes or at certain intersections.

IndyGo Transit Vehicles - Transit Vehicle Signal Priority

2: 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.

Standards:

Project Operational Concepts:

Roles and Responsibilities

Indianapolis Public Transportation Corporation/IndyGo

Provide on-board functionality needed to implement bus tracking and signal priority at local/state route intersections

Indianapolis Department of Public Works

Provide transit signal priority for Indianapolis Public Transportation Corporation/IndyGo.

Regional Objectives from the Metropolitan Plan:

1. To enhance transportation options and choices for all users.
1C. Support transit initiatives to improve service quality, access to, and reliability of transit.
2. To implement strategies that address congested segments.
2A. Develop mobility strategies that address system performance and congested transportation segments.
3. To support economic mobility for all Central Indiana residents.
3A. Increase opportunities for residents to reduce transportation costs.
3B. Assure investments are applied equitably without disproportionately affecting disadvantaged populations.
8. To minimize negative impacts of the transportation system on the natural environment.
8B. Support projects that improve air quality.

Last Updated: 1/8/2024