Cooperative Adaptive Cruise Control: Testing Drivers' Choices of Following Distances

A Cooperative Adaptive Cruise Control (CACC) system has been developed by adding a wireless vehicle-vehicle communication system and new control logic to an existing commercially available adaptive cruise control (ACC) system. The CACC is intended to enhance the vehicle-following capabilities of ACC so that drivers will be comfortable using it at shorter vehicle-following gaps than ACC. This can offer a significant opportunity to increase traffic flow density and efficiency without compromising safety or expanding roadway infrastructure. This report describes the design and implementation of the CACC system on two Infiniti FX-45 test vehicles, as well as the data acquisition system that has been installed to measure how drivers use the system, so that the impacts of such a system on highway traffic flow capacity and stability can be estimated. The results of quantitative performance testing of the CACC on a test track are presented, followed by the experimental protocol for on-road testing with human subjects. Finally, the results from the field testing by 16 naïve drivers are presented to show the user acceptance and quantitative measurements of how these drivers used the ACC and CACC systems, and how these systems affected their choice of car following gap.

Record URL:
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/701250017
Corporate Authors:
University of California, Berkeley

Institute of Transportation Studies Library
Berkeley, CA United States 94720

University of California, Berkeley

California PATH Program, Institute of Transportation Studies
Richmond Field Station, 1357 South 46th Street
Richmond, CA United States 94804-4648

California Department of Transportation

1120 N Street
Sacramento, CA United States 95814
Authors:
- Nowakowski, Christopher
- Shladover, Steven E
- Cody, Delphine
- Bu, Fanping
- O'Connell, Jessica
- Spring, John
- Dickey, Susan
- Nelson, David
Publication Date: 2011-1

Language

English

Media Info

Media Type: Digital/other
Features: Appendices; Figures; Glossary; Photos; References; Tables;
Pagination: 171p
Serial:
- PATH Research Report
- Publisher: University of California, Berkeley
- ISSN: 1055-1425

Subject/Index Terms

TRT Terms: Automatic data collection systems; Autonomous intelligent cruise control; Car following; Drivers; Following distance; Gender; Highway capacity; Vehicle to vehicle communications
Subject Areas: Data and Information Technology; Highways; Vehicles and Equipment;

Filing Info

Accession Number: 01330099
Record Type: Publication
Source Agency: UC Berkeley Transportation Library
Report/Paper Numbers: UCB-ITS-PRR-2011-01
Contract Numbers: DTFH61-07-H-00038329
Files: CALTRANS, TRIS, STATEDOT
Created Date: Feb 22 2011 11:27AM