skip navigation

PUBLICATIONS

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

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. 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: 64285 Find in a Library
Title: SEARCH FOR A SAFE POLICE TIRE
Journal: POLICE CHIEF  Volume:46  Issue:12  Dated:(DECEMBER 1979)  Pages:30-34
Author(s): J J COLLARD
Corporate Author: International Assoc of Chiefs of Police
United States of America
Date Published: 1979
Page Count: 5
Sponsoring Agency: International Assoc of Chiefs of Police
Alexandria, VA 22314
Format: Article
Language: English
Country: United States of America
Annotation: RESULTS OF TRACTION AND ENDURANCE TESTS FOR 10 BRANDS OF TIRES FOR USE ON POLICE CARS ARE REPORTED.
Abstract: THE TESTS WERE CONDUCTED JOINTLY BY THE GENERAL SERVICES ADMINISTRATION (GSA) AND THE NATIONAL BUREAU OF STANDARD'S LAW ENFORCEMENT STANDARDS LABORATORY (LESL). THE IMPETUS FOR SUCH TESTS AND FOR A RESULTING USER GUIDE CAME FROM A REPORT ON TWO FATAL ACCIDENTS IN WHICH STEEL-BELTED RADIAL TIRES ON STATE HIGHWAYS PATROL CARS HAD FAILED DURING HIGH SPEED CHASES. FOR THE JOINT TESTING PROGRAM, GSA CONDUCTED THE HIGH SPEED ENDURANCE AND TREAD WEAR TESTS; THE NATIONAL BUREAU OF STANDARDS, TOGETHER WITH STAFF OF THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, THE TRACTION TESTS. RESULTS SHOWED SUBSTANTIAL VARIATIONS IN TRACTION PERFORMANCE DURING THE DIFFERENT TESTS. TRACTION CHARACTERISTICS STUDIED INCLUDE BRAKING, CORNERING, ACCELERATING, AND SPINNING. THE 10 TYPES OF TIRES WERE RANKED IN GROUPS RANGING FROM 'GOOD' TO 'POOR.' SIX OF THE 10 BRANDS PERFORMED ACCEPTABLY IN THE TREAD WEAR TESTS. RESULTS SHOWED THAT CLIMATE AND/OR ROAD CONSTRUCTION HAVE MAJOR EFFECTS ON TREAD WEAR. IN MOST GEOGRAPHIC REGIONS, TREAD-WEAR PERFORMANCE OF FABRIC AND STEEL RADIALS WAS NEARLY EQUAL. ON THE AVERAGE, BIAS-PLY TIRES LASTED ABOUT 13,200 MILES; BIAS-BELTED, ABOUT 15,900 MILES; FABRIC RADIALS, ABOUT 22,800 MILES; AND STEEL RADIALS, ABOUT 24,200 MILES. ANALYSIS OF MANUFACTURERS' TESTS AND THOSE OF OTHER ORGANIZATIONS SHOWED WIDE VARIATIONS IN TEST PROCEDURES. THE ANALYSIS CONCLUDED THAT VARIATIONS CRITICAL TO A TIRE'S PERFORMANCE SHOULD BE ELIMINATED. A SURVEY OF LAW ENFORCEMENT AGENCIES ALSO SHOWED FREQUENT DEFICIENCIES IN PATROL CAR MAINTENANCE PROCEDURES. TABLES AND FOOTNOTES ARE INCLUDED. (CFW)
Index Term(s): Comparative analysis; Equipment maintenance and storage; Law Enforcement Standards Laboratory; Police cars; Police equipment; Police pursuit driving; Reference materials; Specifications; Testing and measurement; Vehicle equipment; Vehicle safety inspection
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=64285

*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.