EXPERIENCE WITH TRAFFIC CONFLICTS IN CANADA WITH EMPHASIS ON "POST ENCROACHMENT TIME" TECHNIQUES
Following an initial investigation of the g m (brakelight) conflict recording technique in various Canadian cities in 1972/73, a study was undertaken to define conflicts in such a way that a better link between these and accidents could be established. The conflict definition arising from this work was referred to as "post-encroachment time" (pet). In the new technique, six conflict types are recorded by teams of three or four observers, each of them being attributed a specific task; pet is timed for every event noted. Evaluation of the pet technique was carried out from 1978 to 1981, but due to small data sample sizes (especially in terms of recorded accident frequency), results were inconclusive. One major positive finding, however, is that pet conflicts are generally better predictors of expected accidents than either past collision history or volume exposure factors. For the covering abstract of the conference see TRIS 393142. (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/354012716X
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Supplemental Notes:
- Proceedings of the NATO Advanced Research Workshop on International Calibration Study of Traffic Conflict Techniques held in Copenhagen, Denmark, May 25-27, 1983.
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Corporate Authors:
Springer-Verlag
Tiergartenstrasse 17
Heidelberg, Germany D-69121Springer Verlag
Heidelberger Platz 3
Berlin, Germany 14197 -
Authors:
- Cooper, P J
- Publication Date: 1984
Media Info
- Features: Figures; References;
- Pagination: p. 75-96
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Serial:
- NATO Advance Study Inst Ser F, Computer & Syst Sci
- Issue Number: 5
- Publisher: Springer-Verlag
Subject/Index Terms
- TRT Terms: Brake lamps; Conferences; Correlation analysis; Crash rates; Crashes; Data collection; Definitions; Development; Forecasting; Hazards; Methodology; Near midair crashes; Recording; Traffic conflicts; Traffic crashes; Traffic surveillance; Traffic volume
- Geographic Terms: Canada
- ITRD Terms: 1643: Accident; 1612: Accident rate; 1351: Brake light; 8018: Canada; 8525: Conference; 8623: Data acquisition; 9013: Development; 132: Forecast; 9102: Method; 1642: Near miss; 6969: Recording; 9150: Risk
- Subject Areas: Data and Information Technology; Highways; Safety and Human Factors; I80: Accident Studies; I81: Accident Statistics;
Filing Info
- Accession Number: 00393149
- Record Type: Publication
- Source Agency: Institute for Road Safety Research, SWOV
- ISBN: 3-540-12716-X
- Files: ITRD, TRIS
- Created Date: May 31 1985 12:00AM