Development of path reservation for wheelchair users within a High-Activity train Station: A case study of SRT Red Line, Don Mueang Station, Bangkok, Thailand

• This study employs spatial-based accessibility analysis that integrates randomly scattered pedestrian path networks with the identification of potential movement conflicts. • This study investigates path reservation for wheelchair users by using Graph Theory tool. • Findings identify potential conflict points among users during both ingress and egress. • Reserved wheelchair-user route scenarios are compared to provide details on percentage changes in distance, speed, and overall access time. • Reserved cases in both northern and southern sections improve wheelchair accessibility and mobility, especially during ingress. This study investigates the impact of spatial-based accessibility on the SRT Red Line, Don Mueang Station, a railway station that frequently poses challenges for wheelchair users and has recently been developed under the megaproject “The High-Speed Railway Connecting Three Airports Project”. Through comprehensive approaches, including the Graph Theory (Betweenness) in Urban Network Analysis (UNA) and path reservation based on principles of station accessibility, this study explores the relationship between congestion probability (Betweenness) in detailed origins and destinations, as well as kinematics for wheelchair users. The findings analyse the implication and effectiveness of inclusively reserved route design to facilitate movement and provide more efficient mobility for the target study group with safety. By examining the passenger volume of the station during the peak hour, this study provides valuable insights into the understanding and analysis of congestion possibility’s impact on the kinematics for wheelchair users. The results contribute to the existing knowledge by giving an in-depth comprehension of the role of path reservation based on spatial-based accessibility and legal standards and regulations in improving circulation within the station. This study enhances the understanding of the effects of spatial-based accessibility on the inclusive path reservation design and provides implications for future application and research in the field of station accessibility.