1. The World Bank [Online]. Available: 〈http://www.worldbank.org/〉.
2. U.S. Department of Transportation [Online]. Available: 〈http://www.dot.gov/〉.
3. European Transport Safety Council [Online]. Available: 〈http://www.etsc.eu/〉.
4. Japan Transport Safety Board [Online]. Available: 〈http://www.mlit.go.jp/jtsb/english.html/〉.
5. S. Tokoro, K. Moriizumi, T. Kawasaki, T. Nagao, K. Abe, K. Fujita, Sensor fusion system for pre-crash safety system, in: Proceedings of the IEEE Intelligent Vehicles Symposium, June 2004, pp. 945–950.