Standard: API 4034
A SURVEY OF AVERAGE DRIVING PATTERNS IN THE CHICAGO URBAN AREA
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System Development Corporation (SDC) has performed a study to survey the characteristic use patterns of privately operated automobiles in the Chicago, Illinois urban area. The study was conducted under jointly sponsored research contracts to the National Center for Air Pollution Control, Department of Health, Education, and Welfare, and the Coordinating Research Council, Inc. The purpose of the study was to obtain data necessary to develop a composite average driving pattern that would serve as a basis for designing new test cycles for vehicle emission control devices.
During the study SDC installed automatic information recording devices — called Tachographs — In 199 privately operated automobiles volunteered by Chicago area residents. The data records from these instruments as well as information obtained from log books maintained by each of the volunteer participants have been reduced and analyzed. This document presents a discussion of the study results, and a comparison of these results with the findings of similar surveys conducted previously in Los Angeles, California, Houston, Texas, and Cincinnati, Ohio.
This report is published as Volume III of SDC document series TM-(L)-4119. Volume 0, A Survey of Average Driving Patterns in the Los Angeles Urban Area presents in addition to the Los Angeles survey findings a description of the survey technique as well as the data reduction and statistical analysis procedures. Since the technique and procedures used for collecting and analyzing the Chicago data are essentially the same as those employed for Los Angeles, reference is made to Volume 0 for information in these areas.
|Organization:||American Petroleum Institute|
|Document Number:||api 4034|
|Most Recent Revision:||YES|