In this paper, a person-delay-based optimization method is proposed for an intelligent TSP logic that enables bus/signal cooperation and coordination among consecutive signals under the Connected Vehicle environment. This TSP logic, called TSPCV-C, provides a method to secure the mobility benefit generated by the intelligent TSP logic along a corridor so that the bus delay saved at an upstream intersection is not wasted at downstream intersections. The problem is formulated as a Binary Mixed Integer Linear Program (BMILP) which is solved by standard branch-and-bound method. Minimizing per person delay has been adopted as the criterion for the model. The TSPCV-C is also designed to be conditional. That is, TSP is granted only when the bus is behind schedule and the grant of TSP causes no extra total person delay.
Public transit plays an important role in emergency evacuations, particularly for areas where public transit serves as a major commute mode for commuters. Microsimulation techniques provide great flexibility in assessing different scenarios in emergency situations. Combining GIS-based network analysis with microsimulation techniques, this study developed a framework to simulate emergency evacuations using rail transit. Applying the framework to a hypothetical attack on the Pentagon, this study investigated the performance of the Washington Metropolitan Area Transit Authority’s Metrorail for large-scale evacuations. A network-based analysis was performed to estimate the number of riders in association with each metro line and station. Using VISSIM, a multi-mode micro-simulation software package, this study integrated a pedestrian model with a Metrorail transit model to evaluate the performance of the Metrorail in the hypothetical evacuations. The simulation results suggested that if the potential of Metrorail transit is effectively utilized, it could be very useful resource during a large-scale evacuation. This study demonstrated the great potential and flexibility of microsimulation techniques for evaluating complex evacuation scenarios and strategies. The framework and approach used in this study can be applied to analyze other similar situations and help develop effective evacuation plans.
ในกระดาษนี้ วิธีการเพิ่มประสิทธิภาพคนคะแนนล่าช้าจะเสนอสำหรับมีช้อนชาตรรกะอัจฉริยะที่ช่วยให้รถ/สัญญาณความร่วมมือและประสานงานระหว่างสัญญาณติดต่อกันภายใต้สภาพแวดล้อมการเชื่อมต่อรถ ตรรกะนี้ช้อนชา เรียกว่า TSPCV-C แสดงวิธีการที่ปลอดภัยประโยชน์เคลื่อนไหวที่สร้างขึ้น โดย TSP ตรรกะอัจฉริยะตามทางเดินในอาคารเพื่อให้รถหน่วงเวลาบันทึกที่แยกต้นน้ำไม่เสียที่ปลายแยก ปัญหาเป็นสูตรเป็นแบบไบนารีผสมเต็มเชิงเส้นโปรแกรม (BMILP) ซึ่งแก้ไขได้ โดยวิธีผูกกับสาขามาตรฐาน ลดต่อความล่าช้าของบุคคลถูกนำมาใช้เป็นเงื่อนไขสำหรับแบบจำลอง ยังมีการออกแบบ TSPCV-C จะเป็นแบบมีเงื่อนไข นั่นคือ TSP ได้รับเฉพาะเมื่อรถบัสคั่ง และการช้อนชาทำให้เกิดล่าช้าไม่รวมพิเศษคนPublic transit plays an important role in emergency evacuations, particularly for areas where public transit serves as a major commute mode for commuters. Microsimulation techniques provide great flexibility in assessing different scenarios in emergency situations. Combining GIS-based network analysis with microsimulation techniques, this study developed a framework to simulate emergency evacuations using rail transit. Applying the framework to a hypothetical attack on the Pentagon, this study investigated the performance of the Washington Metropolitan Area Transit Authority’s Metrorail for large-scale evacuations. A network-based analysis was performed to estimate the number of riders in association with each metro line and station. Using VISSIM, a multi-mode micro-simulation software package, this study integrated a pedestrian model with a Metrorail transit model to evaluate the performance of the Metrorail in the hypothetical evacuations. The simulation results suggested that if the potential of Metrorail transit is effectively utilized, it could be very useful resource during a large-scale evacuation. This study demonstrated the great potential and flexibility of microsimulation techniques for evaluating complex evacuation scenarios and strategies. The framework and approach used in this study can be applied to analyze other similar situations and help develop effective evacuation plans.
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