系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2009年
7期
166~172
,共null页
可变信息标志 元胞传输模型 路径选择
可變信息標誌 元胞傳輸模型 路徑選擇
가변신식표지 원포전수모형 로경선택
variable message signs; cell transmission model; route choice
随着智能交通技术的发展,可变信息标志(VMS)被广泛应用于动态交通管理中。元胞传输模型(CTM)可以很好的模拟交通流激波、排队形成与消散等交通流动力学特性。应用CTM研究了无信息诱导路径选择、基于VMS的近视转换和有界理性路径选择等三种规则,数值模拟结果表明,后两种规则可以减少系统总出行时间,信息服从率越高,系统的改善程度越大。当有界理性规则的“界”参数设置在一定区间内时,该规则优于近视转换规则,否则不如近视转换规则。
隨著智能交通技術的髮展,可變信息標誌(VMS)被廣汎應用于動態交通管理中。元胞傳輸模型(CTM)可以很好的模擬交通流激波、排隊形成與消散等交通流動力學特性。應用CTM研究瞭無信息誘導路徑選擇、基于VMS的近視轉換和有界理性路徑選擇等三種規則,數值模擬結果錶明,後兩種規則可以減少繫統總齣行時間,信息服從率越高,繫統的改善程度越大。噹有界理性規則的“界”參數設置在一定區間內時,該規則優于近視轉換規則,否則不如近視轉換規則。
수착지능교통기술적발전,가변신식표지(VMS)피엄범응용우동태교통관리중。원포전수모형(CTM)가이흔호적모의교통류격파、배대형성여소산등교통류동역학특성。응용CTM연구료무신식유도로경선택、기우VMS적근시전환화유계이성로경선택등삼충규칙,수치모의결과표명,후량충규칙가이감소계통총출행시간,신식복종솔월고,계통적개선정도월대。당유계이성규칙적“계”삼수설치재일정구간내시,해규칙우우근시전환규칙,부칙불여근시전환규칙。
The variable message signs (VMS) have been widely used in guiding and managing the dynamic traffic with development of intelligent transportation technologies. It is known that the cell transmission model (CTM) can well reproduce such traffic dynamics as shock waves and jams. The CTM is employed in this paper to study the route choice behavior under three different rules, namely the rule without information guidance, the VMS-based myopic switching rule and the VMS-based boundedly rational switching rule. Simulation results show that the latter two rules can enhance the system performance through reducing the total travel time. The enhancement increases with the compliance rate to VMS. The boundedly rational switching rule is better than the myopic switching rule when its bound associated parameter is within a certain range, not so otherwise.