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2025 Vol.3 No.2

Open Access Article

Special Shaped Bodies of Revolution with Delay of Laminar-Turbulent Transition and their Applications in Clean Energy Technologies

Igor Nesteruk

November 2025: 1-8 DOI: 10.55121/tdr.v3i2.697

365 (Abstract) 258 (Download) PDF

Shapes with negative pressure gradients on their surfaces were proposed in order to avoid separation of the boundary layer. Wind tunnel tests have confirmed the absence of separation on some bodies of revolution similar to the trunks of aquatic animals. According to the Tollmin-Schlichting-Lin theory, the boundary-layer on a flat plate remains laminar for any frequencies of disturbances at small R... more
Open Access Article

From Service Quality to Loyalty: Understanding Rail Commuter Satisfaction in Greater Kuala Lumpur

Maryam Kalhoro, Hui Nee Au Yong, Charles Ramendran SPR

November 2025: 9-28 DOI: 10.55121/tdr.v3i2.678

704 (Abstract) 526 (Download) PDF

Rapid urbanization in Greater Kuala Lumpur has intensified automobile dependency, causing congestion and environmental concerns. Although urban rail systems are promoted as sustainable alternatives, their adoption remains limited. This study examines how service quality influences commuter loyalty and whether satisfaction mediates this relationship within Malaysia’s urban rail context (KTM Komuter... more
Open Access Article

The Impact of Weather Conditions on the Number of Road Accidents in England

Piotr Gorzelańczyk, Dominique Trual Molintas

November 2025: 29-39 DOI: 10.55121/tdr.v3i2.875

777 (Abstract) 278 (Download) PDF

This study investigates the relationship between average monthly surface temperature and road traffic accidents in England, across ten years. Using (n = 120) on collisions, casualties, and average surface temperature, we applied descriptive statistics, Pearson and Spearman correlations, simple linear regressions, and a multivariate regression controlling for monthly seasonality. Explicitly, surfac... more
Open Access Article

Last-Mile Logistics Optimization in West Africa: A Machine Learning-Driven Case Study of Ghana and Burkina Faso

Eugene Ansah Owusu Ampaw, Qin Jin, Maxwell Ako Owusu-Ampaw, Isaac Richard Malan

November 2025: 40-51 DOI: 10.55121/tdr.v3i2.435

1074 (Abstract) 1177 (Download) PDF

In Sub-Saharan Africa, the emergence of e-commerce and the rising population of cities is placing novel strain on logistics systems. The efficiency of last-mile delivery (LMD) is an important factor for improving the economic output and sustainable development of cities, particularly in fast urban development areas. This study investigates LMD efficiency in urbanizing Accra, Ghana, and Ouagadougou... more
Open Access Article

Platformising Informal Motorcycle Transport, Youth Livelihoods, and Digital Constraints: A Case of ORide E-Hailing in Ibadan, Nigeria

Ingomowei Preye Samson, Michael Obinna Iwelu

November 2025: 52-62 DOI: 10.55121/tdr.v3i2.717

653 (Abstract) 229 (Download) PDF

The platform-based motorcycle ride-hailing is changing informal mobility systems in African urban areas, but there is little empirical data on the socio-economic effects, adoption forces, and challenges of sustainability. This paper examines the rise of ORide, a commercial motorcycle e-hailing service in Ibadan, Nigeria, and what this means to mobility, the livelihood of young people, and how info... more
Open Access Article

Socioeconomic Profiles of Drivers of Heavy-Duty Vehicles and Self-Reported Causes of Road Traffic Crashes in Southwestern Nigeria

Olusegun Fasaanu, olabisi olapoju, Samuel A. Aguda

November 2025: 63-71 DOI: 10.55121/tdr.v3i2.784

234 (Abstract) 323 (Download) PDF

Heavy-duty vehicle (HDV) crashes, particularly those involving tankers and trailers, present severe safety challenges in Nigeria due to the combination of human, vehicular, and infrastructural risk factors. This study investigates the socioeconomic and demographic characteristics of HDV drivers in Southwestern Nigeria and examines their perceptions of factors contributing to road traffic crashes. ... more
Open Access Article

Risk Analysis of Air Cargo Discrepancies within the Air Freight Supply Chain by Utilizing Innovative Batch Mode, Blockchain, and Clustering Methods

Muhammad Salman

November 2025: 72-104 DOI: 10.55121/tdr.v3i2.983

337 (Abstract) 180 (Download) PDF

There is no integration mechanism available between independent systems (sales and shipment), so it creates uncertainty in the air freight industry. Regarding the problems, freight forwarders or airline sales officers can make a manifest for the shippers; however, various airlines plan different routes for shipping services. But unfortunately, it provides transaction discrepancies between independ... more
Open Access Article

Spatial Heterogeneity in the Impact of Urban Land Use on Road Traffic Carbon Dioxide Emissions

Yang Yang, Jiacheng Jiao, Xingqi Ji, Yixuan Xue, Hongliang Xia, Yinling Chen

November 2025: 105-120 DOI: 10.55121/tdr.v3i2.1012

292 (Abstract) 248 (Download) PDF

Road traffic has become one of the major sources of carbon dioxide emissions. However, there remains a lack of consensus on how urban land use influences these emissions. This study investigates the spatial distribution of municipal-level road traffic carbon dioxide emissions and their land use drivers in Japan’s Kanto region. Ordinary least squares (OLS), geographically weighted regression (GWR),... more

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