1. Korea Institute of Construction Technology, Korea Transport Institute, Korean Society of Transportation (1992). Highway Capacity Manual. Ministry of Construction, Republic of Korea.
2. Korea Institute of Construction Technology, Korea Transport Institute, Korean Society of Transportation (2001). Highway Capacity Manual. Ministry of Construction and Transportation, Republic of Korea.
3. Delay Estimation Model in two-lane Overtakingprohibited Section;Kyeong Soo Hwang;Korean Society of Transportation Journal,1998
4. D.W. Harwood, A. D. John. (1986). Operational Effectiveness of Passing Lanes on Two-lane Highways, FHWA-RD-86-195, FHWA.
5. Passing Lanes and Other Operational Improvements on Two-lane Highways;Harwood;FHWA-RD-85-028, FHWA,1985