Bus Priority Signal Design and Control at Unconventional Intersections: A Simulation-Based Study in Jönköping

Abstract

This thesis evaluates the efficacy of traffic management strategies at the Museirondellen and Södra Strandgatan intersections in Jönköping, Sweden, emphasizing bus prioritization and geometric design modifications. Due to their significant traffic volumes and complex designs, these intersections pose key challenges in terms of congestion and safety. Advanced traffic simulation tools are employed to assess current conditions and to explore the impacts of proposed geometric changes under various traffic scenarios, including increases of 10%, 15%, and 20% in traffic volumes. The study incorporates a survey of local drivers to gather firsthand insights into the current traffic issues and perceptions of the proposed changes, complemented by detailed geographical data and signal timing information from local databases. A new intersection design was proposed and tested through simulations, demonstrating its potential to alleviate congestion and enhance public transport efficiency. The research aims to analyze existing traffic inefficiencies, evaluate the effectiveness of bus prioritization, and assess the new geometric design's impact on traffic flow and safety. The findings are intended to provide evidence-based recommendations that could influence urban planning and policy-making in Jönköping and other cities with similar challenges. The significance of this study extends to its approach to integrating bus traffic within urban intersections and optimizing intersection geometries to foster sustainable traffic systems. Expected outcomes include improved urban mobility, enhanced road safety, and actionable insights for future enhancements in traffic management in urban settings.