Level crossings between railway and highway causes transportation problems in the form of traffic jams and accidents. The Manahan Flyover development in the Surakarta city is an effort to minimize transportation problems in the Manahan and Kota Barat areas. Field condition shows that traffic congestion in the Manahan Flyover can be minimized, but traffic accident rate is increasing. Within nine months an accident occurred with two dead victims. The potential of traffic accident is inseparable with the design of the Manahan Flyover with the design of three-way intersection. The aim of study is to redesign traffic movement in the Manahan Flyover and surrounding Manahan area. Traffic micro-simulation VISSIM model is used to evaluate the performance of road networks at peak traffic conditions with different simulation models. The scenario simulation model is developed based on the calibrated base simulation model. In order to avoid potential accidents, therefore, the direction of traffic movement at the Manahan Flyover is made with a one-way system. The modelling scenario results indicate that the diversion of traffic movement at the Manahan Flyover must be followed by various traffic management and engineering efforts in the Manahan area including road widening, parking management, application of a one-way system.

铁路和公路之间的平交道口会导致交通拥堵和事故等形式的交通问题。苏拉加达市的 Manahan 立交桥开发项目旨在最大程度地减少 Manahan 和 Kota Barat 地区的交通问题。现场情况表明，马纳汉立交桥的交通拥堵可以降到最低，但交通事故率在增加。在九个月内发生了一起事故，两名受害者死亡。马纳汉立交桥的设计与三通交叉口的设计密不可分。研究的目的是重新设计马纳汉立交桥和马纳汉周边地区的交通。交通微观仿真 VISSIM 模型用于通过不同的仿真模型来评估道路网络在高峰交通条件下的性能。情景模拟模型是在校准后的基础模拟模型的基础上开发的。因此，为了避免潜在的事故，马纳汉立交桥的交通运动方向采用单向系统。建模场景结果表明，马纳汉立交桥的交通分流必须遵循马纳汉地区的各种交通管理和工程工作，包括道路拓宽、停车管理、单向系统的应用。