CAJ | 학술논문

中国信号交叉口中，机非干扰现象十分普遍。本文通过实际调查，以无行人影响的左转饱和车流为基础，通过显著分析方法，量化了行人位置（转弯车流内、外侧与距离）、人数对专用左转车流车速的影响，并根据严重程度将影响划分为4个等级，同时拟合了各级影响下排队车辆起步后的速度时间变化曲线。研究结果表明：（1）行人距车流距离是显著影响因素，而行人人数不是；（2）车流两侧同时有行人对饱和车流造成的影响，与其中较严重的单侧行人影响情况相同；（3）排队车辆在加速过程中的速度变化曲线呈“S”型，行人对车流影响越严重，车流加速到饱和流所需时间越长，饱和流车速越低，但不影响速度—时间曲线线型——“S”型。这些结论可为科学的交通管理奠定基础。
중국신호교차구중，궤비간우현상십분보편。본문통과실제조사，이무행인영향적좌전포화차류위기출，통과현저분석방법，양화료행인위치（전만차류내、외측여거리）、인수대전용좌전차류차속적영향，병근거엄중정도장영향화분위4개등급，동시의합료각급영향하배대차량기보후적속도시간변화곡선。연구결과표명：（1）행인거차류거리시현저영향인소，이행인인수불시；（2）차류량측동시유행인대포화차류조성적영향，여기중교엄중적단측행인영향정황상동；（3）배대차량재가속과정중적속도변화곡선정“S”형，행인대차류영향월엄중，차류가속도포화류소수시간월장，포화류차속월저，단불영향속도—시간곡선선형——“S”형。저사결론가위과학적교통관리전정기출。
The vehicle flow under a protected left-turn phase is commonly affected by pedestrians. This paper investigates the average operating speed at the saturation flow rate with and without pedestrian traffic, and evaluates the effect of pedestrians, using the method of significant analysis. The influence factors contain the position (inside or outside of left-turn vehicle’s trajectory) and the number of pedestrian and the distance between the vehicle and pedestrians. The degree of pedestrian-vehicle impact is defined in four levels and the speed profile for the queuing vehicles in different impact levels is fitted by curve fitting software. The results show that saturation flow speed is mainly affected by the position of pedestrian (inside or outside of left-turn vehicle’s trajectory), and the distance, while the number of pedestrians is not an influence factor. The effect on the left-turn saturation flow by both sides of pedestrians is same to the effect by pedestrians on one serious side. The speed-time profile indicates an“S”shape from queuing vehicles start to reach the stable saturation flow, the vehicles need more time to reach the saturation flow when affected by the pedestrians, and the saturation speed is lower. However, the“S”shape of the speed-time profile is not affected. These findings may help lay a foundation for a better traffic management.