Pub Date : 2025-01-01DOI: 10.1016/j.eastsj.2025.100164
Chattraporn Yingsom Means , Sorawit Narupiti
This study addresses the challenge of implementing new mobility concepts like Mobility as a Service (MaaS) in car-dominant societies such as Thailand. Employing an exploratory qualitative approach and Multi-Level Perspective framework, we analyze the impact of the existing automobility regime on MaaS potential in the Bangkok Metropolitan Region. The findings reveal landscape developments that reinforce car-centric transportation systems but also identify dynamics and mechanisms that could facilitate a transition towards MaaS. The study proposes interventions to encourage a shift away from private vehicle use and promote MaaS adoption, emphasizing the need for effective governance strategies. By filling a knowledge gap in understanding the interaction between automobility and emerging mobility concepts in Thailand, this research contributes valuable insights for both transport studies and socio-technical transition research. It highlights the challenges and opportunities for new mobility concepts in Southeast Asia contexts, underscoring the importance of policy interventions in steering the transition towards more sustainable mobility solutions.
{"title":"Multi-level perspective analysis of the automobility regime and the implication to MaaS in Thailand","authors":"Chattraporn Yingsom Means , Sorawit Narupiti","doi":"10.1016/j.eastsj.2025.100164","DOIUrl":"10.1016/j.eastsj.2025.100164","url":null,"abstract":"<div><div>This study addresses the challenge of implementing new mobility concepts like Mobility as a Service (MaaS) in car-dominant societies such as Thailand. Employing an exploratory qualitative approach and Multi-Level Perspective framework, we analyze the impact of the existing automobility regime on MaaS potential in the Bangkok Metropolitan Region. The findings reveal landscape developments that reinforce car-centric transportation systems but also identify dynamics and mechanisms that could facilitate a transition towards MaaS. The study proposes interventions to encourage a shift away from private vehicle use and promote MaaS adoption, emphasizing the need for effective governance strategies. By filling a knowledge gap in understanding the interaction between automobility and emerging mobility concepts in Thailand, this research contributes valuable insights for both transport studies and socio-technical transition research. It highlights the challenges and opportunities for new mobility concepts in Southeast Asia contexts, underscoring the importance of policy interventions in steering the transition towards more sustainable mobility solutions.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"11 ","pages":"Article 100164"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Integrating emerging mobility services into existing transportation systems presents significant challenges. This study introduces an innovative mobility service model that combines Personal Rapid Transit (PRT) technology with low-speed autonomous vehicles to enhance mobility and improve first- and last-mile connectivity through on-demand, door-to-door services. To evaluate the feasibility of this model in a developed urban environment, VISSIM simulations were conducted, focusing on reallocating time and space resources at critical signalized intersections within the studied network. The analysis explored various configurations for PRT-dedicated lanes—including mid-roadway, roadside, and one-way layouts—and tested different signal timing strategies at two intersections in Kasugai, Japan. The findings highlight an optimal integration plan that ensures efficient PRT operations while minimizing disruptions to overall traffic flow. By aligning infrastructure design and signal control with the specific requirements of emerging mobility systems, this study addresses practical implementation challenges and provides actionable insights for deploying innovative mobility services.
{"title":"Integrating personal rapid transit system at signalized intersections: Designing, simulation, and implication","authors":"Lanhang Ye , Toshiyuki Yamamoto , Takayuki Anamoto , Kazuyuki Umiguchi , Takayuki Morikawa","doi":"10.1016/j.eastsj.2025.100168","DOIUrl":"10.1016/j.eastsj.2025.100168","url":null,"abstract":"<div><div>Integrating emerging mobility services into existing transportation systems presents significant challenges. This study introduces an innovative mobility service model that combines Personal Rapid Transit (PRT) technology with low-speed autonomous vehicles to enhance mobility and improve first- and last-mile connectivity through on-demand, door-to-door services. To evaluate the feasibility of this model in a developed urban environment, VISSIM simulations were conducted, focusing on reallocating time and space resources at critical signalized intersections within the studied network. The analysis explored various configurations for PRT-dedicated lanes—including mid-roadway, roadside, and one-way layouts—and tested different signal timing strategies at two intersections in Kasugai, Japan. The findings highlight an optimal integration plan that ensures efficient PRT operations while minimizing disruptions to overall traffic flow. By aligning infrastructure design and signal control with the specific requirements of emerging mobility systems, this study addresses practical implementation challenges and provides actionable insights for deploying innovative mobility services.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"11 ","pages":"Article 100168"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.eastsj.2025.100169
Takako Tomita , Yuya Imamura , Shuichi Ohori
This study analyzes the preferences of potential users regarding Japan’s new ride-hailing services, introduced in April 2024 under a non-competitive framework designed to avoid competing with the taxi industry. These services are predominantly operated by local taxi companies and are only available during limited hours. However, their preferences within this regulatory setting remain unclear. We consider the interaction between the regulation and the preferences. Best-worst scaling was used to understand preferences related to service attributes such as fare, driver information, and availability. We found that driver information is highly valued, with a preference for daytime availability and time-based pricing over dynamic pricing. Pricing affects adoption rates. Time-based pricing and fare reductions for additional passengers are seen as ways to increase usage. Furthermore, the findings indicated a preference for rides with fewer passengers, partly due to privacy concerns and discomfort associated with sharing rides with others.
{"title":"User preferences for ride-hailing services in Japan: A stated preference analysis using best-worst scaling","authors":"Takako Tomita , Yuya Imamura , Shuichi Ohori","doi":"10.1016/j.eastsj.2025.100169","DOIUrl":"10.1016/j.eastsj.2025.100169","url":null,"abstract":"<div><div>This study analyzes the preferences of potential users regarding Japan’s new ride-hailing services, introduced in April 2024 under a non-competitive framework designed to avoid competing with the taxi industry. These services are predominantly operated by local taxi companies and are only available during limited hours. However, their preferences within this regulatory setting remain unclear. We consider the interaction between the regulation and the preferences. Best-worst scaling was used to understand preferences related to service attributes such as fare, driver information, and availability. We found that driver information is highly valued, with a preference for daytime availability and time-based pricing over dynamic pricing. Pricing affects adoption rates. Time-based pricing and fare reductions for additional passengers are seen as ways to increase usage. Furthermore, the findings indicated a preference for rides with fewer passengers, partly due to privacy concerns and discomfort associated with sharing rides with others.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"11 ","pages":"Article 100169"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145319537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.eastsj.2025.100165
Wahidul Sheikh , Khandaker Rasel Hasan , Hasibul Islam , Mohtasim Billah
This study investigates the relationship between vessel characteristics, specifically vessel type (VT), vessel size (VS), and vessel turnaround time (VTT). By analyzing data from 173 vessels that called at Chittagong Port, this study employs nonparametric Kruskal-Wallis and Dunnett T3 post-hoc tests to examine the impact of VT and VS on VTT. The results reveal significant differences in VTT across different vessel types and sizes. These findings suggest that VT and VS are critical factors influencing VTT, providing a novel theoretical framework for analyzing port performance. The study proposes that port authorities should consider vessel characteristics when formulating policies and allocating resources to ensure overall port efficiency. The proposed framework offers a valuable tool for future research and practical applications in port management, facilitating informed decision-making to enhance port efficiency.
{"title":"“Does bigger mean slower?” Investigating the relationship between vessel characteristics and turnaround time","authors":"Wahidul Sheikh , Khandaker Rasel Hasan , Hasibul Islam , Mohtasim Billah","doi":"10.1016/j.eastsj.2025.100165","DOIUrl":"10.1016/j.eastsj.2025.100165","url":null,"abstract":"<div><div>This study investigates the relationship between vessel characteristics, specifically vessel type (VT), vessel size (VS), and vessel turnaround time (VTT). By analyzing data from 173 vessels that called at Chittagong Port, this study employs nonparametric Kruskal-Wallis and Dunnett T3 post-hoc tests to examine the impact of VT and VS on VTT. The results reveal significant differences in VTT across different vessel types and sizes. These findings suggest that VT and VS are critical factors influencing VTT, providing a novel theoretical framework for analyzing port performance. The study proposes that port authorities should consider vessel characteristics when formulating policies and allocating resources to ensure overall port efficiency. The proposed framework offers a valuable tool for future research and practical applications in port management, facilitating informed decision-making to enhance port efficiency.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"11 ","pages":"Article 100165"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.eastsj.2025.100159
Dinh Vinh Man Nguyen , Anh Tuan Vu , Veerle Ross , Tom Brijs , Geert Wets , Kris Brijs
Along with the sharp increase in motorcycles over the past two decades, traffic crashes with small-displacement motorcycles have become a significant health concern in Vietnam. This study aimed to define practical safety countermeasures for enhancing road traffic safety for motorcycle users (both motorcycle riders and pillion passengers) in Vietnam. To that purpose, a qualitative study design was implemented, including a series of focus group discussions and in-depth interviews based on a semi-structured format with stakeholders involved in motorcyclist safety. The participants of the focus group discussions include motorcycle riders, automobile drivers, bicycle/e-bike riders, motorcycle trainers, and policymakers to define countermeasures to enhance traffic safety for motorcycle riders from the viewpoints of different road user groups and the local authorities. Besides, in-depth interviews were conducted with traffic police officers to define the essential and urgent solutions for reducing traffic crashes related to motorcyclists. The solutions for the leading risky behaviors of motorcyclists include tactical and operational strategies for motorcycle riders. Countermeasures for regulators and authorities to reduce the leading risky behaviors include engineering interventions, enforcement solutions, and education and training countermeasures. Strategies to avoid collisions when motorcyclists ride in pairs or groups include strategies for attitude change of motorcycle riders when riding, the behaviors motorcyclists should have when riding in pairs or in groups, and the appropriate riding skills for motorcyclists while riding in pairs or groups. Innovative strategies for enhancing motorcycle rider safety include strategies for motorcycle users and strategies for regulators and authorities. Providing hazard avoidance training for motorcyclists is the most significant and urgent solution that participants suggested for Vietnamese regulators and authorities in enhancing motorcycle users’ safety. These findings imply that the riding training programs for motorcycle riders need to be adjusted and updated by traffic safety authorities, primarily focusing on hazard avoidance training to improve traffic safety for road users in general and motorcycle riders in particular.
{"title":"Practical safety countermeasures for small-displacement motorcycle users in Vietnam: Findings from a focus group and in-depth interview study","authors":"Dinh Vinh Man Nguyen , Anh Tuan Vu , Veerle Ross , Tom Brijs , Geert Wets , Kris Brijs","doi":"10.1016/j.eastsj.2025.100159","DOIUrl":"10.1016/j.eastsj.2025.100159","url":null,"abstract":"<div><div>Along with the sharp increase in motorcycles over the past two decades, traffic crashes with small-displacement motorcycles have become a significant health concern in Vietnam. This study aimed to define practical safety countermeasures for enhancing road traffic safety for motorcycle users (both motorcycle riders and pillion passengers) in Vietnam. To that purpose, a qualitative study design was implemented, including a series of focus group discussions and in-depth interviews based on a semi-structured format with stakeholders involved in motorcyclist safety. The participants of the focus group discussions include motorcycle riders, automobile drivers, bicycle/e-bike riders, motorcycle trainers, and policymakers to define countermeasures to enhance traffic safety for motorcycle riders from the viewpoints of different road user groups and the local authorities. Besides, in-depth interviews were conducted with traffic police officers to define the essential and urgent solutions for reducing traffic crashes related to motorcyclists. The solutions for the leading risky behaviors of motorcyclists include tactical and operational strategies for motorcycle riders. Countermeasures for regulators and authorities to reduce the leading risky behaviors include engineering interventions, enforcement solutions, and education and training countermeasures. Strategies to avoid collisions when motorcyclists ride in pairs or groups include strategies for attitude change of motorcycle riders when riding, the behaviors motorcyclists should have when riding in pairs or in groups, and the appropriate riding skills for motorcyclists while riding in pairs or groups. Innovative strategies for enhancing motorcycle rider safety include strategies for motorcycle users and strategies for regulators and authorities. Providing hazard avoidance training for motorcyclists is the most significant and urgent solution that participants suggested for Vietnamese regulators and authorities in enhancing motorcycle users’ safety. These findings imply that the riding training programs for motorcycle riders need to be adjusted and updated by traffic safety authorities, primarily focusing on hazard avoidance training to improve traffic safety for road users in general and motorcycle riders in particular.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"11 ","pages":"Article 100159"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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