CAJ | 학술논문

利用驾驶模拟器，测试了我国线形诱导标在双车道公路平曲线上对驾驶员实际和感知安全速度的影响。设计和使用12种具有不同道路几何条件的平曲线作为模拟场景。结果表明，不受曲线半径影响，对行驶方向靠近线形诱导标的车辆，平曲线处的诱导标具有提前预警和速度控制的作用。除此，线形诱导标可以辅助限速标志预防车辆在平曲线处超速行驶，进而有助于减少弯道处车辆冲出道路的事故。此外，我国的线形诱导标可以增强急弯处行驶的安全感。研究结果为更加规范合理设置我国的线形诱导标奠定基础。
이용가사모의기，측시료아국선형유도표재쌍차도공로평곡선상대가사원실제화감지안전속도적영향。설계화사용12충구유불동도로궤하조건적평곡선작위모의장경。결과표명，불수곡선반경영향，대행사방향고근선형유도표적차량，평곡선처적유도표구유제전예경화속도공제적작용。제차，선형유도표가이보조한속표지예방차량재평곡선처초속행사，진이유조우감소만도처차량충출도로적사고。차외，아국적선형유도표가이증강급만처행사적안전감。연구결과위경가규범합리설치아국적선형유도표전정기출。
Using a driving simulator,the effects of Chinese chevrons on drivers’actual and perceived safe speeds at horizontal curves on two-lane rural highways are tested. Twelve horizontal curves with different roadway geometries are designed and used as the simulated scenarios.The results show that, regardless of the curve radius, chevrons at horizontal curves provide advance warning and speed control for vehicles on the nearside of chevrons.Besides,chevrons can be used as an addition to speed limit signs in preventing excessive speed at horizontal curves and, therefore, can contribute to a reduction in run-off-road crashes.Moreover, Chinese chevrons can also serve to provide an improved sense of safety while driving around sharp curves.These study results lay a foundation for setting Chinese chevrons more reasonably.