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Title:

Bicycle Detection and Operational Concept at Signalized Intersections Phase 2B: Testing a Bicyclist Detection System
Cover of Bicycle Detection and Operational Concept at Signalized Intersections Phase 2B: Testing a Bicyclist Detection System

Accession Number:

01494939

Record Type:

Monograph

Availability:

University of California, Berkeley

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

Abstract:

Tthe performance of a commercially available microwave radar product for detecting bicyclists arriving at intersections and discriminating them from motor vehicles is tested. This capability is important for improving intersection control efficiency while serving the needs of bicyclists, so that the longer minimum green phases that bicyclists need to clear wide intersections are assigned only when bicyclists are present. The candidate bicyclist detector was first tested under controlled conditions to determine its ability to discriminate bicyclists from motor vehicles at a variety of distances and speed differences. It was then tested at a public intersection with randomly arriving bicyclists and motor vehicles and its detections were compared with a video recording of the actual conditions to determine the frequency of false positive and negative, as well as true positive, bicyclist detections. Motor vehicles misclassified as bicyclists represented an excess of 16% in bicyclist detections above the actual number of approaching bicyclists.

Report Numbers:

UCB-ITS-PRR-2012-3

Contract Numbers:

65A0339

Language:

English

Corporate Authors:

University of California, Berkeley

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

Authors:

Shladover, Steven
Sharafsaleh, Ashkan
Cheong, Allen
Spring, John
Leung, Kai

Pagination:

39p

Publication Date:

2010-9

Media Type:

Digital/other

Features:

Figures; Tables

Subject Areas:

Data and Information Technology; Pedestrians and Bicyclists; I70: Traffic and Transport

Source Agency:

UC Berkeley Transportation Library

Source Data:

Caltrans 2517

Files:

CALTRANS, TRIS, STATEDOT

Last Modified:

Oct 3 2013 10:18AM