||Driving patterns of heavy duty vehicles operating in the St. Louis regional area /
Sheehan, Edward M. ;
Kretzer, Jr., John T.
||East-West Gateway Coordinating Council, St. Louis, Mo.;Environmental Protection Agency, Ann Arbor, Mich. Emission Control Technology Div.
|| Environmental Protection Agency, Office of Mobile Source Air Pollution Control, Emission Control Technology Division ; Available through the National Technical Information Service,
Buses--Missouri--Saint Louis region. ;
Highway transportation ;
Traffic surveys ;
Motor trucks ;
Data acquisition ;
Pattern recognition ;
Data processing ;
Problem solving ;
Computer programming ;
Saint Louis(Missouri) ;
Chase vehicle method ;
Heavy duty vehicles
||NVFEL Library/Ann Arbor, MI
||Some EPA libraries have a fiche copy filed under the call number shown.
||40 pages in various pagings : illustrations, maps ; 28 cm.
The report describes the data collection methods for a survey conducted in the St. Louis regional area. It involved only those vehicles having a gross vehicle weight rating greater than 10,000 pounds. Seventy vehicles were selected for observation. Sixty-five of these vehicles were trucks and five were buses. The chase vehicle method of collecting vehicle operational data utilizes a vehicle equipped to monitor and record its own speed and time while following ('chasing') a subject vehicle. The following information was recorded during each chase event: Day of the year, time of the day, truck I.D. number, area type (urban, non-urban), vehicle speed, manifold vacuum, road types, traffic conditions, weather type, driver-navigator I.D., catch-up mode indicator, and type of scheduled stop.
Interagency agreement no. IAG-D5-0731. Performed under contract DOT-FHWA-11-8563, with the Federal Highway Administration.