| Title | Analysis of lane change crashes |
|---|---|
| Record ID | 34722 |
| Personal Name Creator |
Sen, B.; Smith, J. D.; Najm, W. G. |
| Source | 52p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Publisher | United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publication Date | 20030300 |
| Language | English |
| Abstract | This report defines the problem of lane change crashes in the United States (U.S.) based on data from the 1999 National Automotive Sampling System/General Estimates System (GES) crash database of the National Highway Traffic Safety Administration. The results from this analysis provide a basis for related future research in the U.S. Department of Transportation's Intelligent Vehicle Initiative. Lane change crashes are defined in this report as two-vehicle crashes that occur when one vehicle encroaches into the path of another vehicle initially on a parallel path with the first vehicle and traveling in the same direction. Such encroachment results from various vehicle maneuvers including typical lane change, merge, pass, drift, turn, and leave or enter a parking position. Approximately 539,000 two-vehicle lane change crashes occurred in the U.S. in 1999. The analysis of pre-crash scenarios identified the seven most common scenarios that accounted for about 88% of all two-vehicle lane change crashes. Ten percent of "typical lane change" crashes involved large trucks changing lanes and light vehicles going straight; about 5% of these crashes involved the reverse combination. Similarly, trucks were turning and light vehicles were going straight in 10% of the "turning at junction" crashes; the reverse combination was reported in only 1% of these crashes. The highest involvement of trucks was observed in the "merging" scenario, accounting for 42% of these crashes. Finally, the physical setting of the seven scenarios was described in terms of the number of travel lanes per direction of travel, crash relation to junction, posted speed limit, roadway alignment, and roadway profile. The report also examines possible contributing factors using available GES variables. |
| Rosap ID | dot:6180 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/6180 |
| TRT Terms | Lane changing; Light vehicles; Merging traffic; Parking; Passing; Traffic crashes; Trucks; Turning traffic; Data tables |
| General Subjects | General Estimates System; Intelligent Vehicle Initiative; National Automotive Sampling System; Contributing factors |
| Classification | NTL - REFERENCES AND DIRECTORIES - Statistics; NTL - SAFETY AND SECURITY - Accidents; NTL - SAFETY AND SECURITY - Highway Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY; NTL - SAFETY AND SECURITY - Human Factors |
| Geographical Coverage |
United States |
| OCLC | 60526699 |
| TRIS Online Accession No |
968564 |
| Contract Number | HS319/S3059 |
| Report Number | HS-809 571; DOT-VNTSC-NHTSA-02-03 |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Research Paper |
| URL | https://ntlrepository.blob.core.windows.net/lib/34000/34700/34722/DOT-VNTSC-NHTSA-02-03.pdf |
| Format | |
| Database | NTL Digital Repository |