http://reply.papertrans.cn/3/299/29849/29849-21.png
http://reply.papertrans.cn/3/299/29849/29849-22.png
Submitted on: 25 December 2003.
Revised on: 05 January 2004.
Accepted on: 22 January 2004.
Transportation Letters-The International Journal of Transportation Research
http://reply.papertrans.cn/3/299/29849/29849-24.png
Submitted on: 26 August 2018.
Revised on: 22 September 2018.
Accepted on: 15 October 2018.
Transportation Letters-The International Journal of Transportation Research
http://reply.papertrans.cn/3/299/29849/29849-26.png
http://reply.papertrans.cn/3/299/29849/29849-27.png
Submitted on: 19 February 2015.
Revised on: 21 March 2015.
Accepted on: 11 April 2015.
Transportation Letters-The International Journal of Transportation Research
http://reply.papertrans.cn/3/299/29849/29849-29.png
Submitted on: 14 February 2019.
Revised on: 30 March 2019.
Accepted on: 24 April 2019.
Transportation Letters-The International Journal of Transportation Research