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首页> 外文会议>4th International Moratuwa Engineering Research Conference >Calibrating and Validating VISSIM Microscopic Simulation Software for the Context of Sri Lanka
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Calibrating and Validating VISSIM Microscopic Simulation Software for the Context of Sri Lanka

机译：斯里兰卡环境下的VISSIM微观仿真软件的校准和验证

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摘要

At present, majority of traffic management initiatives are mostly based on trial and error procedures, where no proper traffic theory or simulations are involved. When considering the context of Sri Lanka, the use of traffic simulation software has been the newest addition for the traffic engineering field. However, the outputs obtained from VISSIM traffic simulation software can become unrealistic, if no proper calibration is conducted for the local context. Therefore, the aim of the research is to develop a calibration procedure and identify representative values for parameters required for VISSIM micro simulation software to suit the local Condition. Based on the findings of the literature review, 9 key parameters were identified for calibration purposes of VISSIM, which are further reduced to 5 key parameters based on the sensitivity using statistical tools. These 5 parameters were further simulated in order to identify optimum input values, resulting in minimum percentage error for the difference between observed and simulated queue lengths. The calibrated parameters were successfully validated using 23 signalized intersections in Colombo and Gampaha Districts and these parameter values can be used in future traffic and transportation micro simulation studies.
机译：目前，大多数流量管理计划主要是基于反复试验的程序，没有涉及适当的流量理论或模拟。考虑到斯里兰卡的情况，交通模拟软件的使用已成为交通工程领域的最新成员。但是，如果未针对本地环境进行适当的校准，则从VISSIM交通模拟软件获得的输出可能变得不切实际。因此，该研究的目的是开发一种校准程序并为VISSIM微型仿真软件所需的参数确定代表值，以适应当地条件。根据文献综述的结果，确定了9个关键参数用于VISSIM的校准，然后使用统计工具根据灵敏度将其进一步简化为5个关键参数。为了识别最佳输入值，对这5个参数进行了进一步的模拟，以使观察到的队列长度与模拟队列长度之间的差异的最小百分比误差最小。使用在科伦坡和加姆帕哈地区的23个信号交叉口成功验证了校准的参数，这些参数值可用于将来的交通和运输微观模拟研究。

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