交通运输系统工程与信息
交通運輸繫統工程與信息
교통운수계통공정여신식
JOURNAL OF COMMUNICATION AND TRANSPORTATION SYSTEMS ENGINEERING AND INFORMATION
2014年
5期
74-80
,共7页
城市交通%模型校正%人工萤火虫算法%VISSIM%B/S结构
城市交通%模型校正%人工螢火蟲算法%VISSIM%B/S結構
성시교통%모형교정%인공형화충산법%VISSIM%B/S결구
urban traffic%model calibration%glowworm swarm optimization algorithm%VISSIM%structure of B/S
微观交通仿真能够再现城市道路交通状况，其关键步骤是建立仿真模型。为使模型最大程度地反映实际道路运行状况，需要对所建立的模型进行校正。首先本文设计了改进的自适应步长的人工萤火虫算法（IAGSO）和以排队长度为指标的目标函数。然后，设计了基于IAGSO算法的VISSIM模型参数校正的方法。最后，设计和实现了基于B/S结构的交叉口仿真分析系统，应用VISSIM对北京市某交叉口建模，利用系统对此模型进行参数校正，比较模型校正前、校正后和现场调查的四个进口方向的排队长度。通过比较结果验证了基于IAGSO算法的VISSIM模型参数校正的有效性。
微觀交通倣真能夠再現城市道路交通狀況，其關鍵步驟是建立倣真模型。為使模型最大程度地反映實際道路運行狀況，需要對所建立的模型進行校正。首先本文設計瞭改進的自適應步長的人工螢火蟲算法（IAGSO）和以排隊長度為指標的目標函數。然後，設計瞭基于IAGSO算法的VISSIM模型參數校正的方法。最後，設計和實現瞭基于B/S結構的交扠口倣真分析繫統，應用VISSIM對北京市某交扠口建模，利用繫統對此模型進行參數校正，比較模型校正前、校正後和現場調查的四箇進口方嚮的排隊長度。通過比較結果驗證瞭基于IAGSO算法的VISSIM模型參數校正的有效性。
미관교통방진능구재현성시도로교통상황，기관건보취시건립방진모형。위사모형최대정도지반영실제도로운행상황，수요대소건립적모형진행교정。수선본문설계료개진적자괄응보장적인공형화충산법（IAGSO）화이배대장도위지표적목표함수。연후，설계료기우IAGSO산법적VISSIM모형삼수교정적방법。최후，설계화실현료기우B/S결구적교차구방진분석계통，응용VISSIM대북경시모교차구건모，이용계통대차모형진행삼수교정，비교모형교정전、교정후화현장조사적사개진구방향적배대장도。통과비교결과험증료기우IAGSO산법적VISSIM모형삼수교정적유효성。
Microscopic traffic simulation can reproduce the status of urban road traffic conditions. The key step is formulating a simulation model. Then, the model should be calibrated to accurately reflect the operation status of the road traffic. First, the improved adaptive step glowworm swarm optimization (IAGSO) algorithm, and the target function with the queue length as index is designed. Then the VISSIM simulation model calibration method which is developed based on the IAGSO. Finally, the intersection simulation system based on B/S structure is realized to calibrate the established model of a Beijing intersection by VISSIM, and compare the queue length of four vehicle imported directions between pre-and post-calibrations and the on-site investigations. The results demonstrate the effectiveness of calibration of VISSIM model parameters based on the IAGSO.
