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Robustness-Based Approach for Slack Time Optimization in Tram Timetables
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Robustness-Based Approach for Slack Time Optimization in Tram Timetables
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Journal Article
Robustness-Based Approach for Slack Time Optimization in Tram Timetables
2025
Overview
Considering the unique interplay of trams with road traffic, this study explored the issue of instability in tram operations—a prominent medium-capacity rail transit. Our goal was to design a timetable slack time optimization method for scheduling slack time to improve the stability of tram operations. To facilitate this, we derived the travel/dwelling time distribution from historical data, which assisted in estimating interference times and evaluating the requisite slack time. We then developed an integer programming model to calculate both the punctuality rate and expected delay under varying travel times, enabling the creation of alternative slack time schemes. Using a unique tram operation simulation logic, we assessed the operational efficiency and reliability of these alternate schemes based on specific operational indicators. The results suggest that our novel approach to timetable optimization significantly enhances the tram’s adaptability to disruptions, directly improving the passenger experience and tram competitiveness. This work offers a robust framework for timetable optimization for semi-independent right-of-way public transportation.
Publisher
Springer Nature Singapore,Springer Nature B.V,SpringerOpen
Subject
