Record Display for the EPA National Library Catalog


Main Title Comparison of the Vehicle Operational Characteristics of the EPA Highway Dynamometer Driving Schedule with the Rural Driving Data Collected by the GM CHASE Car Survey.
Author Vogt., Elwood W. ;
CORP Author Environmental Protection Agency, Ann Arbor, Mich. Standards Development and Support Branch.
Year Published 1975
Report Number LDTP-75-3;
Stock Number PB-270 787
Additional Subjects Vehicular traffic ; Rural areas ; Data acquisition ; Highways ; Methodology ; Comparison ; Computer programming ; Vehicles ; Dynamometers ; Velocity ; Criteria ; Chase vehicle method ; Test vehicles ; Trip statistics
Library Call Number Additional Info Location Last
NTIS  PB-270 787 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
The purpose of this report is to compare vehicle operational characteristics of the EPA highway driving cycle with those of the General Motors Rural RT data (GM rural driving data filtered by road type). The computer program developed by GM to evaluate the rural GM CHASE Car data was also employed to analyze the highway schedule. Therefore, driving characteristics for both the GM Rural RT data and EPA HDDS were tabulated according to common criteria. Initially, the more easily calculable parameters such as average trip length, average trip duration, and average trip speed are contrasted for the EPA HDDS and GM Rural RT data. Conclusion: comparison between the EPA HDDS and GM data seems to suggest that both have very similar operational characteristics, most notably average trip speed. The primary discrepancies found are that the highway cycle has more stops/mile and the GM data includes substantial driving at speeds above 60 mph.