INDOT I-465 Ramp Metering

Project Description: This project would install ramp metering equipment and perform traffic metering on I–465 on–ramp.

Project Status: Planned

Project Stakeholders:

Indiana Department of Transportation

Project Inventory:

Interconnect and Flow

Diagrams

Project Service Packages:

TM05: Traffic Metering (INDOT I-465 Ramp Metering)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
roadway dynamic signage data	INDOT Indianapolis TMC	INDOT Ramp Metering System	Planned
roadway dynamic signage status	INDOT Ramp Metering System	INDOT Indianapolis TMC	Planned
signal control commands	INDOT Arterial TMS	INDOT Ramp Metering System	Planned
signal control status	INDOT Ramp Metering System	INDOT Arterial TMS	Existing
traffic detector control	INDOT Arterial TMS	INDOT Ramp Metering System	Planned
traffic detector control	INDOT Indianapolis TMC	INDOT Ramp Metering System	Planned
traffic detector data	INDOT Ramp Metering System	INDOT Arterial TMS	Planned
traffic detector data	INDOT Ramp Metering System	INDOT Indianapolis TMC	Planned
traffic images	INDOT Ramp Metering System	INDOT Indianapolis TMC	Planned
traffic metering control	INDOT Arterial TMS	INDOT Ramp Metering System	Planned
traffic metering control	INDOT Indianapolis TMC	INDOT Ramp Metering System	Planned
traffic metering status	INDOT Ramp Metering System	INDOT Arterial TMS	Planned
traffic metering status	INDOT Ramp Metering System	INDOT Indianapolis TMC	Planned
video surveillance control	INDOT Indianapolis TMC	INDOT Ramp Metering System	Planned

Project Functional Requirements (Element - Functional Object):

INDOT Arterial TMS - TMC Basic Surveillance

1: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.

INDOT Arterial TMS - TMC Roadway Equipment Monitoring

1: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.

INDOT Arterial TMS - TMC Traffic Metering

1: The center shall remotely control systems to manage use of the freeways, including ramp, interchange, and mainline metering.
4: The center shall implement control strategies, under control of center personnel, on some or all of the freeway network devices (e.g. ramp meters, interchange meters, and mainline meters), based on data from sensors monitoring traffic conditions upstream, downstream, and queue data on the approaches to the meters.

INDOT Indianapolis TMC - TMC Basic Surveillance

1: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
2: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.

INDOT Indianapolis TMC - TMC Roadway Equipment Monitoring

1: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.
2: The center shall collect and store CCTV surveillance system (traffic, pedestrian) operational status.

INDOT Indianapolis TMC - TMC Traffic Information Dissemination

1: The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
15: The center shall coordinate information dissemination with other traffic management centers.
3: The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
4: The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.

INDOT Indianapolis TMC - TMC Traffic Metering

1: The center shall remotely control systems to manage use of the freeways, including ramp, interchange, and mainline metering.
2: The center shall collect operational status from ramp meters, interchange meters, and mainline meters and compare against the control information sent by the center.
3: The center shall collect fault data from ramp meters, interchange meters, and mainline meters.

INDOT Ramp Metering System - Roadway Basic Surveillance

1: The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
2: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.

INDOT Ramp Metering System - Roadway Traffic Information Dissemination

1: The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
4: The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.
7: The field element shall include devices that receive configuration data from other field element devices, without center control.

INDOT Ramp Metering System - Roadway Traffic Metering

1: The field element shall regulate the flow of traffic on ramps, interchanges, and the mainline, under center control.
2: The field element shall monitor operation of ramp, interchange, and mainline meters and report to the center any conflicts between received control plans and current system operation.
3: The field element shall return ramp, interchange, and mainline meter operational status to the controlling center.

Standards:

Project Operational Concepts:

Roles and Responsibilities

Indiana Department of Transportation

Monitor freeway system
Monitor traffic images and traffic flow data through CCTVs and field sensors, and maintain operational control of its own field equipment.
Operate and coordinate traffic control devices, traffic sensors, and CCTVs on INDOT freeways, including the ability to control traffic on overflow ramps.
Own, operate, and maintain DMS.

Regional Objectives from the Metropolitan Plan:

2. To implement strategies that address congested segments.
2A. Develop mobility strategies that address system performance and congested transportation segments.

Last Updated: 2/7/2024