Submitted on: 15 May 2010.
Revised on: 10 June 2010.
Accepted on: 27 June 2010.
Transportation Letters-The International Journal of Transportation Research
Submitted on: 09 April 2010.
Revised on: 26 April 2010.
Accepted on: 17 May 2010.
Transportation Letters-The International Journal of Transportation Research
Submitted on: 16 June 2007.
Revised on: 22 July 2007.
Accepted on: 01 August 2007.
Transportation Letters-The International Journal of Transportation Research
Submitted on: 10 March 2006.
Revised on: 23 March 2006.
Accepted on: 13 April 2006.
Transportation Letters-The International Journal of Transportation Research
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Submitted on: 16 November 2004.
Revised on: 29 December 2004.
Accepted on: 18 January 2005.
Transportation Letters-The International Journal of Transportation Research