Submitted on: 07 December 2003.
Revised on: 19 January 2004.
Accepted on: 28 February 2004.
___________________IET Intelligent Transport Systems
Submitted on: 15 February 2013.
Revised on: 07 June 2013.
Accepted on: 18 June 2013.
___________________IET Intelligent Transport Systems
Submitted on: 27 March 2010.
Revised on: 20 April 2010.
Accepted on: 06 June 2010.
___________________IET Intelligent Transport Systems
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Submitted on: 28 October 2005.
Revised on: 28 November 2005.
Accepted on: 15 January 2006.
___________________IET Intelligent Transport Systems
Submitted on: 09 June 2012.
Revised on: 21 July 2012.
Accepted on: 08 August 2012.
___________________IET Intelligent Transport Systems
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