Mitigating Oversaturation With Cooperative Automated Driving Systems: Applying Bundled Speed Harmonization, Cooperative Adaptive Cruise Control, and Cooperative Merging Applications to Managed Lane Facilities: [fact sheet]

United States. Federal Highway Administration. Office of Operations Research, Development, and Technology

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Mitigating Oversaturation With Cooperative Automated Driving Systems: Applying Bundled Speed Harmonization, Cooperative Adaptive Cruise Control, and Cooperative Merging Applications to Managed Lane Facilities: [fact sheet]

[PDF-204.39 KB]

English

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Corporate Creators:

United States. Federal Highway Administration. Office of Operations Research, Development, and Technology
Contributors:

Lochrane, Taylor
Corporate Contributors:

Turner-Fairbank Highway Research Center
Subject/TRT Terms:

[+]

Autonomous Intelligent Cruise Control Managed Lanes Oversaturation (Traffic Flow)
Publication/ Report Number:

FHWA-HRT-19-006 ; HRDO-10/11-18(200)E

FHWA-HRT-19-006 ; HRDO-10/11-18(200)E Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Office of Operations Research and Development
Abstract:

Traffic congestion is typically caused by oversaturation, poor weather, vehicle crashes, work zones, poor signal timing, and special events. Over saturation occurs when more vehicles use a road than the road is designed to accommodate. The resulting congestion leads to unstable traffic flow, which instigates breakdowns and bottlenecks.

The Federal Highway Administration (FHWA) has investigated how automated vehicles could improve traffic performance and reduce congestion. This research suggests the potential value of combining evolving communication and automated control systems into a cooperative automated driving technology to increase the capacity of roadways. Cooperative Automated Driving Systems use radar and other communication systems to control the throttle and brake systems of vehicles. Vehicles that cooperate with each other while using automation can operate much more effectively with shorter headways and improved response to other vehicles’ movements. These cooperative automated driving systems can operate even more efficiently when they benefit from traffic management systems that can coordinate traffic movements, including desired vehicle speeds, and smooth traffic flow. Our research has focused primarily on concepts that require driver engagement and steering at all times (Society of Automation Engineers [SAE] Level 1 for driving automation), however, automated vehicles that incorporate communication would also benefit when they become available.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:07ab380faf36a46ef321ccded6d8bd7ec1e5c4b916f3d56de8bfe8e5b82f1d71
Download URL:

https://rosap.ntl.bts.gov/view/dot/38026/dot_38026_DS1.pdf
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Mitigating Oversaturation With Cooperative Automated Driving Systems: Applying Bundled Speed Harmonization, Cooperative Adaptive Cruise Control, and Cooperative Merging Applications to Managed Lane Facilities: [fact sheet]

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