논문 상세보기
pp.173-181
Traffic congestion and abrupt speed variations in tunnels increase crash risks and reduce traffic operational efficiency. Thus, a pacemaker system (PMS) was developed to stabilize traffic flow by guiding drivers to maintain uniform speeds through the use of sequentially illuminated LED lights installed along tunnel walls. This study aims to quantitatively evaluate the effects of a PMS on traffic operational efficiency and safety in the Geumnam Tunnel of the Seoul–Yangyang Expressway via a driving simulation. In speed-recovery scenarios, sequential LED lights effectively encouraged drivers to gradually restore their speed. Consequently, the average speed increased significantly, whereas both the difference in speed and the space-varying volatility of speed decreased, thus indicating enhanced driving consistency and improved flow stability. In speed-reduction scenarios, drivers’ deceleration responses were compared under three PMS operational types: flashing yellow, message display, and combined flashing with a message. Combined flashing with a message yielded the most controlled and pronounced deceleration, thus facilitating drivers in reducing their speed smoothly without abrupt braking or instability. The results collectively demonstrate that a PMS can serve a dual function by supporting both speed recovery under normal conditions and safe deceleration in accident cases. These findings provide empirical evidence of the effectiveness of a PMS as an intelligent tunnel-traffic management system and highlight its potential as a proactive safety technology. Furthermore, this study offers practical insights for future PMS designs as well as operational guidelines for enhancing traffic efficiency and driver safety in tunnel environments.
1. 서론
1.1. 연구의 배경 및 목적
1.2. 연구의 방법 및 범위
2. 기존문헌고찰
2.1. 터널 내 시환경에 관한 연구
2.2. 주행 시뮬레이션 기반 주행행태 분석 연구
2.3. 시사점
3. 분석방법론
3.1. 주행 시뮬레이션 환경
3.2. 실험 시나리오
3.3. 평가지표 선정
4. 분석 결과
4.1. 속도회복 유도 효과분석 결과
4.2. 감속 유도 효과분석 결과
5. 결론 및 향후 연구과제
감사의 글
REFERENCES
