skip navigation


Abstract Database

Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

To download this abstract, check the box next to the NCJ number then click the "Back To Search Results" link. Then, click the "Download" button on the Search Results page. Also see the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.


NCJ Number: 249256 Find in a Library
Title: Technology Used To Enhance Bike Safety Program
Journal: TECHBeat  Dated:September/October 2015  Pages:14-18
Author(s): Michele Coppola
Corporate Author: National Law Enforcement and Corrections Technology Center (NLECTC)
United States of America
Date Published: October 2015
Page Count: 5
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
National Law Enforcement and Corrections Technology Center (NLECTC)
Gaithersburg, MD 20879
Grant Number: 2014-IJ-CX-K004
Document: PDF
Type: Program/Project Description; Report (Grant Sponsored); Report (Technical); Technical Assistance
Format: Article; Document; Document (Online)
Language: English
Country: United States of America
Annotation: This article describes a program in Chattanooga, TN, in which police use ultrasonic sensor technology to assist in enforcing a Tennessee State law that requires motorists to provide no less than 3 feet of clearance when passing bicyclists.
Abstract: The portable technology is mounted on bike handle-bars and uses an ultrasonic sensor to calculate the distance between a passing car and a bicycle. The device displays the distance in inches and beeps an alarm if the vehicle comes within 36 inches of the bike. A GoPro camera, which is purchased separately, records the vehicle passing and the inches display. This confirms the distance for evidence in court. The city uses billboards and rear-window wraps on patrol cars to educate the public about the bike-passing law. The city periodically uses “stings,” which are planned operations in which bicycling officers in plain clothes alert a patrol car waiting nearby to stop an offending motorist. A citation is $120, which includes the fine and court costs. Judges can order a motorist to participate in a 90-minute cycling education class. Austin, TX, has a similar program. In both Chattanooga and Austin, the community response to efforts at improving motorist-cyclist safety practices has been overwhelmingly positive. Community groups in both cities have made significant unsolicited cash and in-kind donations to support increased efforts to make bicycling on public roads safer.
Main Term(s): Technology transfer
Index Term(s): Bicycle patrol; Bicycles; NIJ grant-related documents; NIJ Resources; State laws; Tennessee; Traffic law enforcement; Traffic laws
To cite this abstract, use the following link:

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.