Submitted on: 26 February 2015.
Revised on: 17 March 2015.
Accepted on: 26 March 2015.
Proceedings of the Institution of Civil Engineers-Urban Design and Planning
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Submitted on: 10 January 2012.
Revised on: 19 February 2012.
Accepted on: 13 March 2012.
Proceedings of the Institution of Civil Engineers-Urban Design and Planning
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