Preferred Following Distance as a Function of Speed—Function-Specific Automation (Level 1) Applications

Weaver, Starla; Chao, Szu-Fu; Jannat, Mafruhatul; Philips, Brian H.

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Preferred Following Distance as a Function of Speed—Function-Specific Automation (Level 1) Applications

2022-12-01
By Weaver, Starla ; Chao, Szu-Fu ; Jannat, Mafruhatul

File Language:

English

Details

Creators:

Weaver, Starla ; Chao, Szu-Fu ; Jannat, Mafruhatul ; Philips, Brian H.
Corporate Creators:

Leidos, Inc.
Corporate Contributors:

United States. Federal Highway Administration. Office of Safety and Operations Research and Development
Subject/TRT Terms:
Publication/ Report Number:

FHWA-HRT-22-107
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Report
Contracting Officer:

Philips, Brian
Corporate Publisher:

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

The gap distances used on adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC) systems have important implications for both driver safety and transportation operations The current study sought to identify comfortable or preferred following gaps under a variety of speeds that could be used to help guide set speeds for ACC and CACC. Participants drove an experimental course that included nine test speeds ranging from 25 to 65 mi/h, once using ACC and once while driving manually. For each of the nine test speeds, comfortable and minimally safe following gaps were recorded as the participants drove manually. The participants also rated their comfort with the ACC gap distance at the same locations and speeds. The result was a creation of a set of comfortable and minimally safe following gap curves that were compared to the gap distance curve of an ACC system currently on the market.
Format:

PDF
Funding:

DTFH61-13-D-00024
Download URL:

https://rosap.ntl.bts.gov/view/dot/66350/dot_66350_DS1.pdf
File Type:

[PDF - 755.30 KB]
Collection(s):

Autonomous Vehicles ; Federal Highway Administration
Main Document Checksum:

urn:sha-512:be252445337ddf4aa39798107cc579812f67e6392df0f5d07224a5b496856aeb0e0da469d7bd06cc28590bfd6c5a7066495d06917a3e9535e0c58629b29d30e7

File Language:

English

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