1. Highway and Transportation Engineering Department , College of Engineering, Mustansiriyah University , Baghdad , Iraq .
2. Department of Civil Engineering , Curtin University , Perth , Australia .
3. Department of Civil Engineering, Faculty of Engineering , Universiti Malaya , Kuala Lumpur , Malaysia .
4. School of Applied Sciences , Abertay University , Dundee , UK .
5. Technical Operations Coordinator, Civil Engineering , Curtin University , Western Australia , Australia .