The Traffic Accident Reconstruction Origin -ARnews-
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Re: Motorcycle Lane Change Formula
Rod Macdonald (frmrmtr@aol.com)
Wed, 30 Sep 1998 23:13:22 -0400 (EDT)
Northwestern's TAR manual, volume II, addresses motorcycle manueverability briefly in it's chapter on motorcycle reconstruction, citing testing by Watanabe and Yoshida. As the motorcycle initiates it's turning movement, it first moves to the opposite direction, based on the countersteering input necessary to turn the motorcycle. Later in the manuever, however, the motorcycle is turning more sharply, and, being narrower, needs to move less, laterally, to avoid contact.
The conclusion was that "both vehicles take about the same longtitudinal distance to move laterally to avoid the obstacle."
The paper cited is:
Wantanabe, Yoshinori, and Kiego Yoshida, Motorcycle Handling Performance for Obstacle Avoidance, Paper No. 73033, Second International congress on Automotive Safety, San Francisco, CA, 1973.
Rod Macdonald
frmrmtr@aol.com
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