Jang, J., Lee, Y., Kim, H. and Jang, M. (2000). “The method of deciding design level
of service with optimal user cost.” Journal of Korean Society of Transportation, Vol.
18, No. 2, pp. 17-26.Jang, J., Lee, Y., Kim, H. and Jang, M. (2000). “The method of
deciding design level of service with optimal user cost.” Journal of Korean Society
of Transportation, Vol. 18, No. 2, pp. 17-26.