PURPOSES : The purpose of this study is to establish design criteria for right-turning lanes by analyzing the relationship between the speed and geometry of right-turning lanes in urban areas. METHODS : A right-turn vehicle with a traffic island was surveyed for 32 geometries and 4,012 vehicles. Using multiple regression, we developed a running speed prediction model based on the running speed characteristics and geometry scale.
RESULTS : According to the analysis of the running speed of the right-turning channel, the 85th speed was 34.5-38.3 km/h, depending on the right-turning lane radius, and 32.4-39.0 km/h, depending on the channel width group. Based on the multi-regression, the right-turning radius and the channel width variables were statistically significant because of the influencing factors of the road speed. Two independent variables were positive (+) coefficients.
CONCLUSIONS : In this study, we investigated the running speed state on the right-turning channel and the factors that influenced the running speed. In addition, the relationship between the running speed and other factors was modeled through statistical analysis, and a running speed prediction model was established. It was observed that the driving speed increased as the geometry scale increased. Based on the derived running speed model, the maximum design criteria for limiting the speed of the conductive channelized right-turning lane in urban areas were established.

ABSTRACT
1. 서론
    1.1. 연구의 배경 및 목적
2. 기존 연구문헌 및 설계기준 고찰
    2.1. 국내 우회전차로 설계기준
    2.2. 국외 우회전차로 설계기준
    2.3. 국내 우회전차로 관련 연구
    2.4. 국외 우회전차로 관련 연구
    2.5. 기존 연구와의 차별성
3. 연구범위 및 방법론
4. 자료수집
    4.1. 현장조사
    4.2. 조사결과
    4.3. 주행속도 특성분석
5. 우회전차로 도류로 설계요소 분석
    5.1. 분석개요
    5.2. 우회전차로 주행속도 회귀분석
    5.3. 우회전차로 군집분석
    5.4. 도류로 주행속도 모형
    5.5. 우회전 도류로 설계기준 제시
6. 결론 및 향후 과제
REFERENCES

• 염진배(인천광역시청 교통정책과) | Yeom Jin Bae
• 김응철(인천대학교 도시과학대학 도시환경공학부) | Kim EungCheol
• 기한솔(인천대학교 일반대학원 건설환경공학과) | Gi Hansol 교신저자