1. Senior Lecturer, Institute of Engineering Surveying and Space Geodesy, The Univ. of Nottingham, Nottingham NG7 2RD, UK.
2. Senior Research Fellow, Institute of Engineering Surveying and Space Geodesy, The Univ. of Nottingham, Nottingham NG7 2RD, UK.
3. Professor and Head, School of Civil Engineering, The Univ. of Nottingham, Nottingham NG7 2RD, UK.