Decarbonization of transport system in Japan requires region-specific policies, as public transport efficiency varies by population density. While rail systems are carbon-efficient in urban areas, their benefits weaken in sparsely populated regions, exacerbated by ongoing depopulation. Here, we integrate spatially detailed transport data, demographic projections, and a model of rail transport under varying trip demand to evaluate the low-carbon advantage of rail relative to cars across regions toward 2035. Our findings reveal rail remains more carbon-efficient than cars in cities, as future grid decarbonization enhances the advantage of electrified rail networks. In rural areas, however, emissions per transport unit can exceed those of single-occupied cars, with grid decarbonization offering little benefit, due to infrequent service and continued use of non-electrified lines. This study highlights that shifting demand to rail is not universally effective for decarbonization. Instead, flexible, small-scale public transport in low-demand areas may better align with Japan’s decarbonization goals.
Nigeria is experiencing a serious transport crisis. This is characterized by increasing greenhouse gas emissions, air pollution, the removal of fuel subsidies, and reliance on imported fossil fuels. Clean mobility, which includes electric vehicles (EVs), compressed natural gas (CNG), better public transit, and non-moto...
Engr Henry Azuka Ifeachor· SANGARU JOURNAL OF ENGINEERI...· 0 citations
Decarbonising maritime transport is becoming increasingly challenging amid sustained global trade growth. This study develops a System Dynamics (SD) framework to evaluate a transcontinental green shipping corridor connecting Shanghai, Jebel Ali, and Koper. The model integrates five interconnected stages, including port...
M. Hero, P. Vidmar, Patrick Vlačič et al.· Frontiers in Marine Science· 0 citations
City power systems face intensified mismatches between generation and dynamic demand under rising zero-carbon energy penetration levels. Although demand-side resource management offers mismatch mitigation potential by regulating load patterns, its city-level capability remains unclear. This study develops a community-t...
Kai Li, Sheng-Yu Tao, Z. Xiong et al.· Nature Communications· 0 citations
South Asia is rapidly motorizing, facing acute crises in urban air quality, greenhouse gas emissions, and petroleum import dependence. Electric vehicles (EVs) offer a promising transition, yet the regional evidence base remains fragmented. This scoping review, guided by the PRISMA-ScR framework, systematically maps the...
Shiyan Sadik, M. Samia, Rejmin Islam et al.· Discover Vehicles· 0 citations
Cement production contributes about 8% of global CO2 emissions, but conventional assessments often overlook spatiotemporal heterogeneity in demand, energy resources, infrastructure, and policy constraints. This study develops a high-resolution whole-system optimization framework to evaluate deep decarbonization pathw...
Yushu Wang, Wen-Li Du, Minglei Yang et al.· ACS Sustainable Chemistry &a...· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
