논문 상세보기
pp.241-249
This study aims to calculate the passenger car equivalent (PCE) of heavy vehicles on one-lane exit sections of underground roads. Traffic-flow simulations were performed using the VISSIM software program. The scenarios were designed under varying conditions, including design speeds of 40 and 50 km/h, slope gradients ranging from 3% to 9%, and heavy vehicle proportions between 5% and 40%. The mixed-traffic flow capacity was calculated for each scenario at the threshold levels, and the PCE was estimated based on the two capacity conditions. The results revealed that the PCE decreased at lower design speeds. For slopes less than 6% at a design speed of 40 km/h, and for slopes less than 4% at 50 km/h, the PCE remained consistent across all conditions. Single-lane exit sections are often employed on underground roads because of congestion and structural constraints. However, when heavy vehicles are present in these sections, the overall traffic flow is dictated by the speeds of the heavy vehicles. To address this issue, the implementation of variable or temporary two-lane exit sections has been proposed to enhance traffic flow and capacity.
1. 서론
2. 선행연구
2.1. 승용차 환산계수 정의
2.2. 승용차 환산계수 산정기법
2.3. 조건에 따른 승용차환산계수 연구
2.4. 지하도로에 대한 연구
2.5. 소결
3. 연구수행 방법
3.1. 연구 방법론
3.2. 기준 중차량 설정
3.3. 도로환경 설정
3.4. 분석 모형의 결정
4. 용량 및 정체 추정
4.1. 혼합 교통류의 용량
4.2. 승용차 환산계수 산출
5. 결론
REFERENCES
