1. 3) Fawcett, G. A., Bennett, C. R. and Ollerenshaw, D. G. : Flexible low-cost data capture technology for road networks, 4th International Conference on Road and Airfield Pavement Technology, Yunnan, China, 2002.
2. 5) ASTM : Standard guide for classification of automated pavement condition survey equipment, Standard No. E1656-06.