UNTERSUCHUNG UBER DEN EINFLUSS DER FAHRSTREIFENBREITE AUF DEN VERKEHRSABLAUF AUF RICHTUNGSFAHRBAHNEN (INVESTIGATION OF THE INFLUENCE OF LANE WIDTH ON THE FLOW OF TRAFFIC ON ROADS WITH SEPARATE CARRIAGEWAYS)
In the Federal Republic of Germay the autobahns and Federal highways are as a rule built with a lane width of 3.75 m. Since 1974 guidelines permit also a reduced autobahn cross-section with a lane width of 3.50 m. Hitherto there has been no quantitative information available on the introduction of the reduced cross-section concerning the influence of lane width on traffic flow and traffic safety on roads with separate carriageways. Test sections were selected for the investigation, which-with traffic-lane widths of 3.25 m, 3.50 m, and 3.7 m - each had a cross section with and without emergency lane (hard shoulder). With the aid of combined photographs and tape recordings traffic measurements were performed on the selected stretches, covering the distribution of local speeds, the overall time intervals, traffic density and composition, and the behavior of drivers in respect of lateral distances for each traffic lane. The influence of the lane width on traffic flow characteristics and on the behavior of drivers in respect of lateral distances was investigated by means of multiple regression and correlation analyses.
- Pub. in Forschung Strassenbau und Strassenverkehrstechnik, heft 211, 1976. Text in German, abstracts in English and French. Prepared in cooperation with Ingenieurbuero, Aachen (Germany, F.R.).
Bundesministerium fuer Verkehr, Bonn-Bad GodesbergBonn, Germany
(Germany, F.R.). Abt. Strassenbau.,
- Oellers, F W
- Publication Date: 1976
- Pagination: 108 p.
- TRT Terms: Highways; Regression analysis; Traffic safety; Urban areas; Urban transportation
- Geographic Terms: Germany
- Subject Areas: Data and Information Technology; Highways; Safety and Human Factors;
- Accession Number: 00318454
- Record Type: Publication
- Source Agency: National Technical Information Service
- Files: NTIS
- Created Date: Oct 8 1980 12:00AM