摘 要
阐述了微观交通仿真软件VISSIM的理论基础，基于其模型对银川市海甸岛甸昆路口进行的交通仿真。通过对银川市甸昆路口实际调查得到交通数据，分析其交叉路口的交通运行现状。利用VISSIM进行模拟仿真，通过分析仿真数据，评价交叉口的通行能力、行车延误、排队长度等道路交通指标。对改进和优化甸昆路交叉口的交通设计方案提出合理化建议，解决银川市甸昆路口中存在的不合理的城市道路交通规划设计。结果表明城市的道路交叉口通过模拟仿真能够优化其交通流诱导问题，有助于解决路口行车拥堵故障，提高交通出行服务水平。利用VISSIM交通仿真能够在实际中应用，有效地在复杂交通条件下解决城市道路交通运输的实际问题。这是实现城市智能交通系统自动化、数字化的重要研究新方法。
关键词：交通仿真；VISSIM；交叉口；交通流
Abstract
The microscopic traffic simulation software VISSIM theoretical basis, based on the model in the Haidian Island, Haikou City Dian Kun intersection traffic simulation. Dian Kun intersection traffic conditions collected survey data, analysis of its intersection traffic operation status quo. VISSIM simulation, and analysis of simulation data, the evaluation of the intersection capacity, traffic delays, queue length and road traffic indicators. The traffic design improvements and optimization Dian Kun Road intersection to make reasonable suggestions to solve Dian Kun intersection unreasonable urban traffic planning and design. The results show that the city's road intersections by simulation to optimize traffic flow guidance, help to solve the intersection traffic congestion, improve traffic travel service levels. VISSIM traffic simulation in practical applications, effectively solve the practical problems of urban transport in the complex traffic conditions. This is a new method of urban intelligent transportation system automation, digitization important.
Key words: traffic simulation; VISSIM; intersection; traffic flow
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