1. Research Engineer, AmeyMouchel, Stafford Park Depot, Stafford Park 10, Stafford Park Industrial Estate, Telford TF3 3BU, U.K. (corresponding author).
2. Construction Team Leader, AmeyMouchel, Stafford Park Depot, Stafford Park 10, Stafford Park Industrial Estate, Telford TF3 3BU, U.K.
3. Engineering and Delivery Manager, AmeyMouchel, Birmingham Business Park, Unit 2035, The Crescent, Birmingham, West Midlands B37 7YE, U.K.
4. Professor, Finance Director/Director for Postgraduate Studies/Programme at Loughborough University, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough LE11 3TU, U.K.
5. Senior Lecturer, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough LE11 3TU, U.K.