CAJ | 학술논문

为建立合理的动态交通网络中路段走行时间模型，分析了动态路段走行时间函数的一般形式，对比国内外常用的几种离散型动态路段走行时间函数，基于元胞自动机交通流模型，建立了动态路段走行时间模型。模型可以根据实际路段驶入率、驶出率，推算出任意时刻进入路段车辆的走行时间，并利用M atlab对模型进行求解和数值分析。结果表明，车辆进入路段后的交通状态是动态路段走行时间的主要影响因素；根据累积驶入驶出车辆数曲线可以直接求出动态路段走行时间，能够为动态交通网络中路径走行时间求解奠定基础。
위건립합리적동태교통망락중로단주행시간모형，분석료동태로단주행시간함수적일반형식，대비국내외상용적궤충리산형동태로단주행시간함수，기우원포자동궤교통류모형，건립료동태로단주행시간모형。모형가이근거실제로단사입솔、사출솔，추산출임의시각진입로단차량적주행시간，병이용M atlab대모형진행구해화수치분석。결과표명，차량진입로단후적교통상태시동태로단주행시간적주요영향인소；근거루적사입사출차량수곡선가이직접구출동태로단주행시간，능구위동태교통망락중로경주행시간구해전정기출。
This study analyzed function of travel times on dynamic links ,investigated several frequently used dis‐crete functions of travel time on dynamic links ,and proposed a model of travel time estimation on dynamic links using cel‐lular automation traffic flow model .The proposed model is capable of obtaining the travel times of vehicles entering the corresponding dynamic link at any time ,based on the actual entering and exiting traffic volumes .The results show that the traffic status on corresponding link ,which could be obtained from the functions of cumulative arrival and departure traffic volumes ,is the main factor affecting travel times on dynamic links .The proposed model provides a new method to estimate travel times on a dynamic road network .