Examination of Intersection, Left Turn Across Path Crashes and Potential IVHS Countermeasures

Chovan, John D.; Tijerina, Louis; Everson, Jeffrey H.; Pierowicz, John A.; Hendricks, Donald L.

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Examination of Intersection, Left Turn Across Path Crashes and Potential IVHS Countermeasures

1994-09-01
By Chovan, John D. ; Tijerina, Louis ; Everson, Jeffrey H. ; ...

[PDF-999.43 KB]

English

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Creators:

Chovan, John D. ; Tijerina, Louis ; Everson, Jeffrey H. ; Pierowicz, John A. ; Hendricks, Donald L.

Chovan, John D. ; Tijerina, Louis ; Everson, Jeffrey H. ; Pierowicz, John A. ; Hendricks, Donald L. Less -
Subject/TRT Terms:

[+]

Crash Avoidance Systems Crash Causes Intersections Left Turns
Publication/ Report Number:

DOT HS 808 164 ; DOT-VNTSC-NHTSA-94-4

DOT HS 808 164 ; DOT-VNTSC-NHTSA-94-4 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Joint Program Office for Intelligent Transportation Systems
Abstract:

This report provides a preliminary analysis of intersection-related, left turn across path (LTAP) crashes and applicable countermeasure concepts for the Intelligent Vehicle Highway System (IVHS) program. An LTAP crash occurs when the subject vehicle (SV) approaches an intersection, attempts to turn left, and either strikes or is struck by the principal other vehicle (POV) traveling in the opposing traffic lanes. A detailed analysis of 154 such crashes showed that 49 percent are caused by drivers who were unaware of the oncoming vehicle, and that 30 percent were caused by drivers who saw but misjudged the velocity/gap of the oncoming vehicle. Moreover, two LTAP crash subtypes are identified: the SV slow, but does not stop, begins the Left turn, and strikes or is struck by the oncoming POV in 71.6 percent of these crashes; and the SV stops, then proceeds with the left turn, and strikes or is struck by the POV in the remaining 28.4 percent of these crashes. The crash avoidance system (CAS) concepts discussed in this report include driver warnings, partially automatic vehicle control systems, end fully automatic vehicle control systems. This report concludes with a number of research needs to better understand LTAP crashes and guide CAS development.
Format:

PDF
Collection(s):

ITSJPO Digital Library
Main Document Checksum:

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urn:sha256:882bbcf11c50258d0ed2d6ab023df774d663d515f037d0187b83362bfeb0086b
Download URL:

https://rosap.ntl.bts.gov/view/dot/2977/dot_2977_DS1.pdf
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Examination of Intersection, Left Turn Across Path Crashes and Potential IVHS Countermeasures

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