Asian Transport Studies最新文献_第2页

Sketch planning approach and big data utilisation to improve public transport services provision in Jakarta Metropolitan area 利用草图规划方法和大数据改善雅加达大都市区的公共交通服务

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-06-01 DOI: 10.1016/j.eastsj.2026.100193

Hananto Prakoso, Harsis Nugraha

引用次数: 0

Enhancing gravity model predictions of Malaysian freight trade using machine learning integration 利用机器学习集成增强马来西亚货运贸易的重力模型预测

IF 1.9

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-07-09 DOI: 10.1016/j.eastsj.2026.100197

Aidawani Abdullah, Zamira Hasanah Zamzuri, Nor Hamizah Miswan

引用次数: 0

Model development for evaluating the impact of greenhouse gas reduction measures in international shipping: A case study of the dry bulk carrier market 评估国际航运业温室气体减排措施影响的模型开发：以干散货船市场为例

IF 1.9

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-10-13 DOI: 10.1016/j.eastsj.2026.100203

Yujiro Wada, Tatsumi Yamamura, Shinnosuke Wanaka, Kunihiro Hamada

{"title":"Model development for evaluating the impact of greenhouse gas reduction measures in international shipping: A case study of the dry bulk carrier market","authors":"Yujiro Wada, Tatsumi Yamamura, Shinnosuke Wanaka, Kunihiro Hamada","doi":"10.1016/j.eastsj.2026.100203","DOIUrl":"10.1016/j.eastsj.2026.100203","url":null,"abstract":"<div><div>The International Maritime Organization (IMO) aims to achieve net-zero GHG emissions from international shipping by or around 2050. This study developed a system dynamics model to evaluate combined operational, technological, and economic CO<sub>2</sub>-reduction measures in the maritime industry. The model focuses on tank-to-wake CO<sub>2</sub> emissions from fuel combustion; therefore, the results should be interpreted within this defined boundary rather than as a comprehensive well-to-wake GHG assessment. Simulation results show that no single measure is sufficient to meet the modeled CO<sub>2</sub>-reduction target. The most effective pathway combines slow steaming, large-scale deployment of vessels assumed to have zero tank-to-wake CO<sub>2</sub> emissions using alternative fuels, continuous technological efficiency improvements, and economic incentives such as carbon levies and preferential interest rates. The proposed framework enables policymakers, shipowners, shipbuilders, and other maritime stakeholders to compare integrated CO<sub>2</sub>-reduction pathways and assess trade-offs among emission reduction, fleet transition, and economic sustainability.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100203"},"PeriodicalIF":1.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149211369","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}

引用次数: 0

Profiling road traffic crash hotspots using GIS-based spatio-temporal analysis techniques: A case study of Kathmandu Valley, Nepal 基于gis时空分析技术的道路交通事故热点分析——以尼泊尔加德满都谷地为例

IF 1.9

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-10-15 DOI: 10.1016/j.eastsj.2026.100202

Anuradha K.C., Rojee Pradhananga, Upama Koju, Novel Bista, Sandesh Lamsal, Shaishav Acharya, Sanjaya Khanal

{"title":"Profiling road traffic crash hotspots using GIS-based spatio-temporal analysis techniques: A case study of Kathmandu Valley, Nepal","authors":"Anuradha K.C., Rojee Pradhananga, Upama Koju, Novel Bista, Sandesh Lamsal, Shaishav Acharya, Sanjaya Khanal","doi":"10.1016/j.eastsj.2026.100202","DOIUrl":"10.1016/j.eastsj.2026.100202","url":null,"abstract":"<div><div>Geographic Information System (GIS)-based hotspot analysis is widely used in road safety studies, but many network-level approaches rely on administrative units, grids, or arbitrary equal-length segments that may miss infrastructure-specific crash concentrations. Addressing this gap, this study applies a geometry-based segmentation framework for spatiotemporal crash hotspot analysis in Kathmandu Valley, Nepal, using 23,300 police-reported crashes from 2019 to 2021 and 12,336 road sections. Global Moran's I, Getis-Ord Gi*, and KDE were applied across severity, collision type, and temporal categories. Moran's I confirmed spatial clustering, Gi* identified hotspot segments at the 99% confidence level, and KDE showed over 85% spatial agreement with Gi* hotspots. Hotspots were concentrated along Ring Road, Araniko Highway, Tribhuvan Highway, and the Bishnumati corridor. Across categories, 49 segments totaling 9.36 km remained persistent hotspots. Reported cause profiles indicated dominant driver carelessness, with high speed and alcohol more prominent in severe, night time, and weekend crashes.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100202"},"PeriodicalIF":1.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149211370","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}

引用次数: 0

Analysis of the effects of urban area expansion owing to railway development in Asian megacities using optical satellite data 利用光学卫星数据分析亚洲特大城市铁路发展对城市面积扩大的影响

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-05-18 DOI: 10.1016/j.eastsj.2026.100188

Hiroki Mori , Ivan Goryunov , Takumi Narusawa , Yasushi Sugo , Makoto Ito , Hajime Inamura , Shigeru Morichi

{"title":"Analysis of the effects of urban area expansion owing to railway development in Asian megacities using optical satellite data","authors":"Hiroki Mori , Ivan Goryunov , Takumi Narusawa , Yasushi Sugo , Makoto Ito , Hajime Inamura , Shigeru Morichi","doi":"10.1016/j.eastsj.2026.100188","DOIUrl":"10.1016/j.eastsj.2026.100188","url":null,"abstract":"<div><div>For transit-oriented development (TOD) policy, understanding the relationship between urban railways and urban development is essential. In many Asian megacities, limited time-series land-use data impedes such analysis. This study introduces a rigorous method for assessing land-use changes every 30 x 30 m square area using optical satellite data, incorporating techniques to minimize errors and focus on physically developable land along railway corridors. Applying this method, a time-series analysis of Bangkok (2004–2023) across 41 zones—categorized by direction and distance—reveals that urbanization patterns vary significantly by location. Notably, developed areas along railway corridors expanded more rapidly than the metropolitan average, indicating a strong correlation between railway development and urban growth. Furthermore, the timing of development differs by section: in the purple line (Section I), urbanization accelerated post-construction, whereas in Section II, it increased following planning approval. These insights provide evidence to help policymakers optimize the timing and spatial focus of TOD initiatives.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100188"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147991622","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}

引用次数: 0

Exploring the impact of street-level built environment characteristics on vehicle speeds in low-speed streets: A case study of Tainan city 探讨街道级建成环境特征对低速街道车速的影响——以台南市为例

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-03-28 DOI: 10.1016/j.eastsj.2026.100183

Cheng Lian, Tzu-Chang Lee

{"title":"Exploring the impact of street-level built environment characteristics on vehicle speeds in low-speed streets: A case study of Tainan city","authors":"Cheng Lian, Tzu-Chang Lee","doi":"10.1016/j.eastsj.2026.100183","DOIUrl":"10.1016/j.eastsj.2026.100183","url":null,"abstract":"<div><div>This study investigates the impact of street-level built environment characteristics on vehicle speeds in Tainan's low-speed urban streets. Employing a multi-source data integration approach, we combined Google Directions API, OpenStreetMap, and Street View Imagery. Semantic segmentation quantified visual proportions of environmental elements as proxies for roadside friction, while POI (Point of Interest) data indicated functional density. Multiple linear regression identified key determinants of speed. Results show that higher visual proportions of buildings and sidewalks significantly correlate with reduced vehicle speeds, reflecting a “roadside friction” effect that prompts cautious driving. Conversely, residential segments exhibited a positive correlation with speed, suggesting a lack of perceived visual constraints. By bridging computer vision and urban analysis, this study provides a scalable framework for human-centered transportation planning. The findings offer practical insights for designing effective traffic-calming measures in dense Asian cities, emphasizing the role of perceived environmental friction in governing driver behavior.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100183"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538887","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}

引用次数: 0

A review of control research on virtually coupled heterogeneous train convoys 虚拟耦合异构列车车队控制研究综述

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-05-09 DOI: 10.1016/j.eastsj.2026.100190

Deng Pan , Zehao Xu , Xiaoxiao Guo , Haiping Jiang

{"title":"A review of control research on virtually coupled heterogeneous train convoys","authors":"Deng Pan , Zehao Xu , Xiaoxiao Guo , Haiping Jiang","doi":"10.1016/j.eastsj.2026.100190","DOIUrl":"10.1016/j.eastsj.2026.100190","url":null,"abstract":"<div><div>Recent advances in virtually coupled train convoys underscore the significance of short-distance following under complex, dynamic operational conditions. This review evaluates major research approaches and examines key control mechanisms, system requirements, and limitations of dynamic safe distance models. The primary challenges concern convoy heterogeneity and the real-time integration of communication methods, block systems, and braking modes. To address these issues, a design principle for dynamic safe distance modeling is presented that incorporates non-uniform train deceleration and links train control with the effective use of station transport capacity to enhance safety, efficiency, and operational stability. Cooperative control, behavioral consistency, and their interdependence are analyzed, with the safe and efficient steady-following (SESF) state highlighted as a critical objective that enables behavioral consistency in convoys to be achieved progressively over time. Finally, the potential of intelligent control and proactive safety is discussed as promising directions for advancing convoy performance.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100190"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147951106","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}

引用次数: 0

Mobile vendor routing adoptions to wholesale market relocations considering cooperative and non-cooperative behaviours 考虑合作和非合作行为的移动供应商路由对批发市场重新定位的采用

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-01-21 DOI: 10.1016/j.eastsj.2026.100178

Triana Sharly Permaisuri Arifin , Chandra Balijepalli , Anthony Whiteing

{"title":"Mobile vendor routing adoptions to wholesale market relocations considering cooperative and non-cooperative behaviours","authors":"Triana Sharly Permaisuri Arifin , Chandra Balijepalli , Anthony Whiteing","doi":"10.1016/j.eastsj.2026.100178","DOIUrl":"10.1016/j.eastsj.2026.100178","url":null,"abstract":"<div><div>Wholesale markets are crucial in urban supply chains, serving as key distribution hubs for mobile vendors within the informal sector. This study examines how wholesale market relocation affects the routing efficiency of mobile vendors and innovates how cooperative and non-cooperative behaviours shape the spatial distribution outcomes. Methodologically, the study develops an adaptation of the Clarke and Wright Savings Algorithm (CWSA), modified to the operational characteristics of mobile vendors. This approach extends the classical vehicle routing algorithm to decentralised/dynamic informal distribution systems, allowing the potential to cooperate by sharing customer base. The findings reveal that strategically planned market relocations can significantly reduce travel distance, whereas poorly located markets exacerbate routing inefficiencies. Cooperative behaviour further amplifies efficiency gains by reducing redundant travel and balances load distribution. Empirical analysis of the Segiri market relocation in Samarinda (Indonesia) indicated distance savings of 5.27 % under inclusive scenario, which could rise to 34.91 % in selective scenario.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100178"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023612","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}

引用次数: 0

The analysis of accident risk factors based on the similarity between the contribution distribution of accident risk prediction models and traffic state contour maps 基于事故风险预测模型贡献分布与交通状态等高线图相似性的事故风险因素分析

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-05-20 DOI: 10.1016/j.eastsj.2026.100192

Shinichiro Yabata , Takahiro Tsubota

{"title":"The analysis of accident risk factors based on the similarity between the contribution distribution of accident risk prediction models and traffic state contour maps","authors":"Shinichiro Yabata , Takahiro Tsubota","doi":"10.1016/j.eastsj.2026.100192","DOIUrl":"10.1016/j.eastsj.2026.100192","url":null,"abstract":"<div><div>Numerous studies have examined the relationship between traffic conditions and accident risk on expressways. However, few have explored the interpretability of deep learning models in this context. This study aims to identify accident risk factors by analyzing the spatiotemporal features that contribute to predictions made by a CNN-based Accident Risk Prediction Model (ARPM). The ARPM is trained using vehicle trajectory diagrams generated from ETC 2.0 probe data and predicts accident occurrence within the subsequent 30 min. The proposed model achieved a recall of 0.233, a precision of 0.177, and an F1-score of 0.201 on the test dataset at a threshold of 0.43, indicating reasonable predictive performance under a highly imbalanced accident dataset. Grad-CAM is then integrated to visualize the contribution distributions that influence the model's outputs. To interpret these attention patterns, cosine similarity was calculated between Grad-CAM contribution maps and traffic state contour maps of flow, speed, and density. The results show that the similarity with density contours was significantly higher than that with flow or speed, suggesting that the model tends to focus on density-related traffic patterns when predicting accident risk. Furthermore, samples with higher density similarity showed higher future occurrence rates of rear-end and contact collisions, indicating that density-related traffic states are closely associated with congestion-related accident risk. These findings demonstrate that Grad-CAM–based similarity analysis can provide interpretable insights into the traffic conditions underlying CNN-based accident risk predictions.</div></div>","PeriodicalId":100131,"journal":{"name":"Asian Transport Studies","volume":"12 ","pages":"Article 100192"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147991623","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}

引用次数: 0

Study on installation of speed humps as traffic safety measures on residential roads in Bangkok 在曼谷住宅道路上安装减速带作为交通安全措施的研究

IF 2.2

Asian Transport Studies Pub Date : 2026-01-01 Epub Date: 2026-03-18 DOI: 10.1016/j.eastsj.2026.100180

Hiroto Sakai , Atsushi Fukuda

引用次数: 0