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Submitted on: 23 March 2014.
Revised on: 21 April 2014.
Accepted on: 11 May 2014.
SAE International Journal of Transportation Safety
Submitted on: 19 October 2001.
Revised on: 02 December 2001.
Accepted on: 18 December 2001.
SAE International Journal of Transportation Safety
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Submitted on: 11 June 2002.
Revised on: 22 July 2002.
Accepted on: 15 August 2002.
SAE International Journal of Transportation Safety
Submitted on: 06 June 2006.
Revised on: 22 June 2006.
Accepted on: 30 June 2006.
SAE International Journal of Transportation Safety
http://reply.papertrans.cn/3/275/27433/27433-28.png
Submitted on: 26 January 2008.
Revised on: 02 March 2008.
Accepted on: 08 March 2008.
SAE International Journal of Transportation Safety
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