Ahn, W., Lee, S. and Ahn, G. (2011). “A study on signal metering performance analysis for roundabouts.” Journal of Transport Research, The Korea Transport Institute, Vol. 18, No. 2, pp. 1-11 (in Korean).Ahn, W., Lee, S. and Ahn, G. (2011). “A study on signal metering performance analysis for roundabouts.” Journal of Transport Research, The Korea Transport Institute, Vol. 18, No. 2, pp. 1-11 (in Korean).

Chun, W. S. and Hoe, P. S. (2009). “A study on the development trends of automobile-IT convergence.” Electronics and Telecommuni-cations Trends, Electronics and Telecommunications Research Institute, Vol. 24, No. 2, pp. 9-18 (in Korean).Chun, W. S. and Hoe, P. S. (2009). “A study on the development trends of automobile-IT convergence.” Electronics and Telecommuni-cations Trends, Electronics and Telecommunications Research Institute, Vol. 24, No. 2, pp. 9-18 (in Korean).

Jeon, W. H. and Doh, T. W. (2003). “Analysis of the entry capacity of roundabout.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 21, No. 3, pp. 59-69 (in Korean).Jeon, W. H. and Doh, T. W. (2003). “Analysis of the entry capacity of roundabout.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 21, No. 3, pp. 59-69 (in Korean).

Kim, A., Kim, G. and Choi, H. (2011). “Center of Car-IT integr-ation : Connected car.” Technology Hot Issues, KT Advanced Institute of Technology, Vol. 35, pp. 1-5 (in Korean).Kim, A., Kim, G. and Choi, H. (2011). “Center of Car-IT integr-ation : Connected car.” Technology Hot Issues, KT Advanced Institute of Technology, Vol. 35, pp. 1-5 (in Korean).

Kim, E. and Ji, M. (2009). “A study on level of service criteria for roundabouts.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 27, No. 1, pp. 7-16 (in Korean).Kim, E. and Ji, M. (2009). “A study on level of service criteria for roundabouts.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 27, No. 1, pp. 7-16 (in Korean).

Kim, H. K. (2011). “A simulation-based investigation of an advanced traveler information system with V2V in urban network.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 29, No. 5, pp. 121-138.Kim, H. K. (2011). “A simulation-based investigation of an advanced traveler information system with V2V in urban network.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 29, No. 5, pp. 121-138.

Kim, T., Park, M. and Park, B. (2012). “A critical gap model for roundabouts in Korea.” Journal of Korean Society of Trans-portation, Korean Society of Transportation, Vol. 30, No. 2, pp. 93-100 (in Korean).10.7470/jkst.2012.30.2.093Kim, T., Park, M. and Park, B. (2012). “A critical gap model for roundabouts in Korea.” Journal of Korean Society of Trans-portation, Korean Society of Transportation, Vol. 30, No. 2, pp. 93-100 (in Korean).

Lee, Y. H. (2012). Critical gap at the entry path of multi-leg roundabouts, Master's Thesis, Dankook University, pp. 16-18 (in Korean).Lee, Y. H. (2012). Critical gap at the entry path of multi-leg roundabouts, Master's Thesis, Dankook University, pp. 16-18 (in Korean).

Lee, Y., Lee, I. and Lee, D. (2010). “Determination of passenger car equivalents when estimating capacity at small 3-leg roundabouts.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 28, No. 6, pp. 65-74 (in Korean).Lee, Y., Lee, I. and Lee, D. (2010). “Determination of passenger car equivalents when estimating capacity at small 3-leg roundabouts.” Journal of Korean Society of Transportation, Korean Society of Transportation, Vol. 28, No. 6, pp. 65-74 (in Korean).

Lim, J. and Jung, E. (2011). “Study on Internet portal service in connected vehicle environment : For the effective contents and interface based on voice recognition, full browsing, and touch interaction.” Proc. of 2011 Conference on the HCI Society of Korea, Human Computer Interaction (HCI) Society of Korea, pp. 984-986 (in Korean).Lim, J. and Jung, E. (2011). “Study on Internet portal service in connected vehicle environment : For the effective contents and interface based on voice recognition, full browsing, and touch interaction.” Proc. of 2011 Conference on the HCI Society of Korea, Human Computer Interaction (HCI) Society of Korea, pp. 984-986 (in Korean).

Ministry of Land, Transport and Maritime Affairs (2010). Design guideline of roundabout (in Korean).Ministry of Land, Transport and Maritime Affairs (2010). Design guideline of roundabout (in Korean).

Son, J., Park, D., Kim, T. and Jung, Y. (2011). “Introduction to Korean roundabouts design.” Transportation Technology and Policy, Korean Society of Transportation, Vol. 8, No. 2, pp. 47-51 (in Korean).Son, J., Park, D., Kim, T. and Jung, Y. (2011). “Introduction to Korean roundabouts design.” Transportation Technology and Policy, Korean Society of Transportation, Vol. 8, No. 2, pp. 47-51 (in Korean).

Son, Y. T. and Jun, J. S. (1999). “Estimating delay of vehicles entering roundabouts using gap acceptance functions.” Journal of the Korean Society of Civil Engineers, Korean Society of Civil Engineers, Vol. 19, No. 3-6, pp. 1045-1048 (in Korean).Son, Y. T. and Jun, J. S. (1999). “Estimating delay of vehicles entering roundabouts using gap acceptance functions.” Journal of the Korean Society of Civil Engineers, Korean Society of Civil Engineers, Vol. 19, No. 3-6, pp. 1045-1048 (in Korean).

Xu, F. and Zong, Z. T. (2008). “Driver behavior and gap-acceptance characteristics at roundabouts in California.” Transportation Research Record, TRB, No. 2071, pp. 117-124.10.3141/2071-14Xu, F. and Zong, Z. T. (2008). “Driver behavior and gap-acceptance characteristics at roundabouts in California.” Transportation Research Record, TRB, No. 2071, pp. 117-124.

Yang, I. (2012). “Next generation road safety system using vehicle-to-vehicle communication : Connected vehicle program of U.S. DOT.” Journal of the Korean Society of Road Engineers, Korean Society of Road Engineers, Vol. 14, No. 3, pp. 77-79 (in Korean).Yang, I. (2012). “Next generation road safety system using vehicle-to-vehicle communication : Connected vehicle program of U.S. DOT.” Journal of the Korean Society of Road Engineers, Korean Society of Road Engineers, Vol. 14, No. 3, pp. 77-79 (in Korean).

Yoon, B. and Kim, J. (2012). “Technology trends of research and development with intelligent car.” Magazine of Institute of Control, Robotics and Systems, Institute of Control, Robotics and Systems, Vol. 18, No. 2, pp. 21-29 (in Korean).Yoon, B. and Kim, J. (2012). “Technology trends of research and development with intelligent car.” Magazine of Institute of Control, Robotics and Systems, Institute of Control, Robotics and Systems, Vol. 18, No. 2, pp. 21-29 (in Korean).