This note reports a preliminary statistical study of rolling resistance data from ConRail’s Elkhart, Indiana yard October 25 and 26, 1978 by Messrs. Jim Wetzel, Jack Delancy and Gerald Brubaker of ConRail. The data consists of three separate test runs of cars switched over the hump and rolled into a single destination class track. The analysis considers car specific variables such as Weight and Length, as well as data regarding the yard to develop predictions of rolling resistance.
The report presents a survey of rolling resistance research, histograms of rolling resistance from five yards, a statistical regression analysis of ca...
An analysis is presented for the influence of test drum curvature on stress levels and resulting rolling resistance forces in pneumatic tires. The inf...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
[PDF-1.98 MB]
