Ahn, S. Y. (2012). Analysis on delay effects of modern roundabouts in Community Zones, Gachon University, Master's Thesis (in Korean).Ahn, S. Y. (2012). Analysis on delay effects of modern roundabouts in Community Zones, Gachon University, Master's Thesis (in Korean).

Jeju Special Self-Governing Province. (2009). Plan of roundabout project for green traffic (in Korean).Jeju Special Self-Governing Province. (2009). Plan of roundabout project for green traffic (in Korean).

Jeju Special Self-Governing Province. (2010). Detailed design for roundabouts' construction project in Jeju (in Korean).Jeju Special Self-Governing Province. (2010). Detailed design for roundabouts' construction project in Jeju (in Korean).

Kim, K. H. (2009). A study on conceptual cost estimating using the case based reasoning for IPC girder bridge, Kyungpook National University, Master's Thesis (in Korean).Kim, K. H. (2009). A study on conceptual cost estimating using the case based reasoning for IPC girder bridge, Kyungpook National University, Master's Thesis (in Korean).

Ko, S. I. (2011). Effectiveness analysis for transforming many- legs type intersection into roundabout in Jeju, Jeju National University, Master's Thesis (in Korean).Ko, S. I. (2011). Effectiveness analysis for transforming many- legs type intersection into roundabout in Jeju, Jeju National University, Master's Thesis (in Korean).

Lim, W. S. (2008). Framework development of calculation model for construction cost estimation of bridge work (PSC Beam Bridge as the Subject), Chung-Ang University, Master's Thesis (in Korean).Lim, W. S. (2008). Framework development of calculation model for construction cost estimation of bridge work (PSC Beam Bridge as the Subject), Chung-Ang University, Master's Thesis (in Korean).

Moon, J. B. (2012). A study on the signal operation of pedestrian crosswalk by using roundabout according to pedestrian volume, Master's Thesis, University of Seoul (in Korean).Moon, J. B. (2012). A study on the signal operation of pedestrian crosswalk by using roundabout according to pedestrian volume, Master's Thesis, University of Seoul (in Korean).

Park, H. C. (2011), Analysis of measure of effectiveness at 5-legged roundabouts - Focusing on the Okcheon Pgeori Intersection in Gangneung City, Master's Thesis, Kwandong University (in Korean).Park, H. C. (2011), Analysis of measure of effectiveness at 5-legged roundabouts - Focusing on the Okcheon Pgeori Intersection in Gangneung City, Master's Thesis, Kwandong University (in Korean).

Seo, K. T. (2011). A study on the operational characteristics of multi-legged roundabouts, Master's Thesis, Dankook University (in Korean).Seo, K. T. (2011). A study on the operational characteristics of multi-legged roundabouts, Master's Thesis, Dankook University (in Korean).