1. Senior Research Fellow, School of Engineering, Computer Science and Mathematics, Univ. of Exeter, Exeter, EX4 4QF, UK. E-mail: r.farmani@exeter.ac.uk
2. Senior Lecturer, Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough, Leicestershire, LE11 3TU, UK. E-mail: j.a.wright@lboro.ac.uk
3. Professor, School of Engineering, Computer Science and Mathematics, Univ. of Exeter, Exeter, EX4 4QF, UK. E-mail: d.savic@exeter.ac.uk
4. Professor, School of Engineering, Computer Science and Mathematics, Univ. of Exeter, Exeter, EX4 4QF, UK. E-mail: g.a.walters@exeter.ac.uk