Asian Transport Studies

Dipanjan Nag

Arkopal Kishore Goswami

What are pedestrian preferences of link and network attributes? Results of conjoint experiments in two Indian cities

行人偏好链接和网络属性是什么？印度两城市的联合实验结果

This study attempted to investigate the impacts of COVID-19 on public transport usage in a hypothetical ‘new normal’ situation in a South Asian country, Bangladesh, by using data collected during the first wave of COVID-19. Most of the samples came from young and affluent groups. Findings of the study showed that a substantial proportion of respondents expected to reduce travel by public transport during the ‘new normal’ situation than the pre-pandemic situation. To identify the factors behind the expectation, a multinomial logistic regression model was developed. Results suggest that income, regular travel mode, frequency of travel by public transport in the pre-COVID-19 situation, expected change in trip frequency and virtual activities, risk perception, and trust in preventive strategies can influence public transport use during the ‘new normal’ situation. The results of the study would be useful in understanding the immediate impact of a pandemic on public transportation and help prepare better for future pandemics.

Niaz Mahmud Zafri

Asif Khan

Shaila Jamal

Bhuiyan Monwar Alam

Impact of COVID-19 on public transport usage in an anticipated ‘new normal’ situation: The case of a South Asian country based on first wave data

COVID-19对预期“新常态”下公共交通使用的影响：基于第一波数据的南亚国家案例

People with transportation access can easily join socioeconomic activities. However, insufficient accessibility levels hinder this engagement, causing the inequitable distribution of transportation benefits. Accessibility distribution for nonwork activities has become a serious issue, especially in rural Japan's aging population. Using the National Integrated Transport Analysis System's travel survey data, this study aims to evaluate whether Mobility-as-a-Service (MaaS) can enhance social equity and accessibility levels, specifically for vulnerable groups in most need of aid in rural Japan. To assess accessibility distribution for nonwork activities, person- and place-based accessibility measures provided detailed observations of individual accessibility levels across social groups. The Gini coefficient and Lorenz curve measured the fairness of transportation benefits distribution for different transportation modes. Transportation was less accessible to the elderly than to young and middle-aged people, and bus accessibility was unequal. Nevertheless, the AI on-demand shuttle caused a remarkable decrease in the accessibility inequity of two out-of-home activities.

Tugsdelger Chinbat

Nakamura Fumihiko

Matsuyuki Mihoko

Tanaka Shinji

Ariyoshi Ryo

Impact assessment study of mobility-as-a-service (MaaS) on social equity through nonwork accessibility in rural Japan

通过非工作可达性评估日本农村地区移动即服务(MaaS)对社会公平的影响研究

Eiei Tun

Toshimitsu Nishikiori

Varun Varghese

Makoto Chikaraishi

Miho Seike

Akimasa Fujiwara

Emergency shelter location–allocation analysis with time–varying demand

应急避难所选址分配分析与时变需求

Maximizing the surplus received by each actor is an ongoing issue in the current rice supply chain model. This study assesses a supply chain network that involves five business actors, namely collectors, wholesalers, retailers, demand markets and freight carriers. The interconnectedness of the actors results in a dynamic supply chain problem and free competition. The Supply Chain Network Equilibrium (SCNE) method is commonly used to solve this problem but poses the important issue of the ease of computation. Another method to achieve network equilibrium is the method of successive average (MSA). The MSA is more capable of optimization to generate accurate results with fewer iterations than the SCNE method. The simple case and real case results demonstrate that the MSA method can be used as an alternative for optimizing rice supply chains.

Andrean Maulana

Ade Sjafruddin

Russ Bona Frazila

Febri Zukhruf

Rice supply chain network equilibrium optimization using the successive average method

基于逐次平均法的稻米供应链网络均衡优化

Ryuichi Shibasaki

Yunhong Min

Tomoya Kawasaki

Chathumi Ayanthi Kavirathna

Editorial: Logistics in Asia: The post-pandemic era

编者按：亚洲物流：后疫情时代

Renewing feeder transit services is crucial for maximizing the potential of the public transport system and advancing toward a decarbonized Bangkok. Herein, we propose a smart feeder transit service using small electric vehicles for limited areas (sois) and target facilities in central Bangkok. A 1-year proof of concept was conducted to verify the feasibility and effectiveness of this service and assess its potential for deployment as a new mobility service. We found that 1) the introduction of a small mobility service in sois can considerably reduce both road congestion levels and CO2 emissions owing to the improved capacity utilization rate, downsizing, and the use of electric vehicles, 2) advantages of scaling could be garnered by expanding the number of facilities to be serviced, and 3) providing a mobility service that is cooperatively operated by neighboring facilities is more convenient and profitable than providing a shuttle service for each facility.

Tsuyoshi Takano

Hiroyoshi Morita

Masato Miyata

Chun-Chen Chou

Kento Yoh

Kenji Doi

Theeramunkong Thanaruk

Proof of concept on district mobility service using small electric vehicles toward realizing a decarbonized city

基于小型电动汽车实现低碳城市的区域移动服务概念验证

Bus bunching is a critical issue in bus operation management. This study investigated the impacts of potential factors affecting bus bunching on a city-wide bus route network, using Taipei City as an example with its 267 bus routes and 4741 bus stops. Frequency of bus bunching was measured on an hourly basis using Automatic Vehicle Location data. Multilevel count models based on Conway-Maxwell Poisson distributions were developed, and the spatiotemporal distributions of random intercepts and residuals were examined. The results showed that the effects of bus lane design, bus route network and operation, and traffic characteristics were consistent with those reported in prior studies. However, a quadratic relationship between bus route length, best measured by number of stops, and bus bunching was identified, which explains the conflicts between the theories of bus bunching propagation and self-repair. Bus route design often faces a dilemma between extending route length to collect additional passengers and reducing in-vehicle travel time to enhance service quality. The findings of the study could be a useful reference for bus route design to minimize bus bunching.

Yi-Shih Chung

Yi-Chen Chiang

Characterizing spatiotemporal patterns of bus bunching frequency on a bus route network: A case study of Taipei city

表征公交线路网络上的公交串车频率时空模式：以台北市为例

涉及主题	工程类计算机科学运输工程经济地理业务生物数学政治学历史法学考古统计物理医学机器学习哲学土木工程操作系统生态学营销社会学量子力学心理学人工智能
出版信息	出版商: Elsevier B.V.，出版周期: ，期刊类型: journal，开源期刊: 是
基本数据	创刊年份: 2021，原创研究文献占比: 0.00%，自引率:N.A.， Gold OA占比: 0.00%
平均审稿周期	网友分享经验：18 Weeks

Asian Transport Studies

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What are pedestrian preferences of link and network attributes? Results of conjoint experiments in two Indian cities

Impact of COVID-19 on public transport usage in an anticipated ‘new normal’ situation: The case of a South Asian country based on first wave data

Impact assessment study of mobility-as-a-service (MaaS) on social equity through nonwork accessibility in rural Japan

Emergency shelter location–allocation analysis with time–varying demand

Rice supply chain network equilibrium optimization using the successive average method

Editorial: Logistics in Asia: The post-pandemic era

What are pedestrian preferences of link and network attributes? Results of conjoint experiments in two Indian cities

Emergency shelter location–allocation analysis with time–varying demand

Proof of concept on district mobility service using small electric vehicles toward realizing a decarbonized city

Characterizing spatiotemporal patterns of bus bunching frequency on a bus route network: A case study of Taipei city

ISSN	2185-5560
h-index	6