Sophia Roy, Abdur-Rahman Ali, Jean-Philippe Harvey, Christoph Herrmann, Louis Fradette
{"title":"Operationalizing the environmental safe operating space into target distributions for mobility and batteries.","authors":"Sophia Roy, Abdur-Rahman Ali, Jean-Philippe Harvey, Christoph Herrmann, Louis Fradette","doi":"10.1038/s44333-026-00089-1","DOIUrl":"10.1038/s44333-026-00089-1","url":null,"abstract":"<p><p>A safe operating space (SOS) for human activities was proposed to safeguard the Earth system's resilience. However, translating such SOS into actionable targets remains challenging. The goal of our work is twofold: (1) introduce a methodology for the derivation of SOS-based targets for mobility and electric vehicle batteries; (2) demonstrate target sensitivity to downscaling assumptions and parameters. We derive climate impact and freshwater use targets for mobility and batteries in Germany and Canada in 2030, 2035, and 2050. Target distributions range from 1 to 47 kg CO<sub>2</sub>-eq/kWh and 0.1-2.0 m<sup>3</sup> water/kWh in 2030, and shrink to 0.4-12 kg CO<sub>2</sub>-eq/kWh and 0.1-1.1 m<sup>3</sup> water/kWh in 2050 across location and battery sizes. We discuss challenges in deriving sustainability targets and compare them with existing regulatory and company-level product targets, with the perspective of operationalizing SOS-based pathways for mobility.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"19"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12979189/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147470576","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}
Kang Huang, Bram van Lith, Ray Galvin, Feixiong Liao, Franco Ruzzenenti
{"title":"Rebound effects of power enhancement in internal combustion and electric vehicles.","authors":"Kang Huang, Bram van Lith, Ray Galvin, Feixiong Liao, Franco Ruzzenenti","doi":"10.1038/s44333-026-00082-8","DOIUrl":"10.1038/s44333-026-00082-8","url":null,"abstract":"<p><p>Regulations and public expectations are compelling the road transport sector to innovate for higher vehicle efficiency. However, a persistent gap remains between official figures and real-world energy performance. This discrepancy is often linked to idealized testing environments and behavioral \"rebound effects,\" where improved efficiency leads to increased travel. This study introduces the \"power rebound effect,\" a new premise where increased horsepower impedes the deployment of efficiency gains. Analyzing a database of 531 car models from 15 years of real-world European testing, our findings reveal a significant power rebound effect in petrol and diesel cars, though not in electric ones. Additionally, rising vehicle weight induces a rebound effect across all vehicle types. This research provides a fuller understanding of the factors shaping passenger car fuel intensity, offering crucial insights for future energy policy.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"14"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12909115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146222585","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}
Matthias F C Hudecek, Julia K Kammer, Corinne Moser
{"title":"The uneven landscape of Swiss travel behavior: evidence of mobility inequality from the national microcensus.","authors":"Matthias F C Hudecek, Julia K Kammer, Corinne Moser","doi":"10.1038/s44333-026-00085-5","DOIUrl":"10.1038/s44333-026-00085-5","url":null,"abstract":"<p><p>This study shows that mobility in Switzerland is highly unequal. Based on Swiss Mobility and Transport Microcensus data (years 2015 and 2021), we find that a small percentage of individuals accounts for a disproportionately large share of total travel. Machine learning reveals that sociodemographic and spatial features have limited predictive power for daily domestic travel distance. The findings highlight the need for more nuanced perspectives that go beyond population averages.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"18"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12979185/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147470585","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}
Jônatas Augusto Manzolli, Jiangbo Yu, Alessandro Vissarios D'Apice, Luis Miranda-Moreno
{"title":"Balancing energy resilience and mobility: a multi-objective strategy for deploying shared autonomous electric vehicles during power outages.","authors":"Jônatas Augusto Manzolli, Jiangbo Yu, Alessandro Vissarios D'Apice, Luis Miranda-Moreno","doi":"10.1038/s44333-026-00081-9","DOIUrl":"10.1038/s44333-026-00081-9","url":null,"abstract":"<p><p>As cities face increasing climate-induced disruptions, shared autonomous electric vehicles (SAEVs) emerge as a dual-purpose solution to sustain passenger mobility and provide emergency power. This study introduces a framework that combines GIS-based spatial analysis and multi-objective optimization to evaluate SAEV fleet performance during power outages. Using Montreal as a testbed, we simulate the operations of a mid-sized SAEV fleet under varying power disruption scenarios. Our analysis reveals a critical operational trade-off: the fleet can meet up to 2% of daily mobility demand or supply 28% of energy needs in affected zones, but not simultaneously. The sensitivity analyses indicate that improving charging infrastructure yields greater operational benefits than increasing battery capacity. Further, revenue from energy provision increases significantly with larger fleets and higher charger power. The findings underscore the importance of coordinated infrastructure planning and incentive design to enable SAEVs to effectively support transport continuity and urban energy resilience.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12909116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146222586","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}
Arjan de Ruijter, Florian Dandl, Roman Engelhardt, Klaus Bogenberger, Nejc Geržinič, Hans van Lint, Oded Cats
{"title":"Two-sided dynamics in duopolistic ridesourcing markets with private and pooled rides.","authors":"Arjan de Ruijter, Florian Dandl, Roman Engelhardt, Klaus Bogenberger, Nejc Geržinič, Hans van Lint, Oded Cats","doi":"10.1038/s44333-025-00077-x","DOIUrl":"10.1038/s44333-025-00077-x","url":null,"abstract":"<p><p>Network effects in ridesourcing suggest fragmented (multi-platform) markets produce worse rider-driver matches than monopolistic markets. This research addresses two key gaps: (i) understanding how fragmentation costs such as longer detours for travellers, decreased driver income, and increased vehicle kilometres travelled (VKT) vary with market features and user attributes, and (ii) exploring conditions under which fragmented markets sustain. To this end, we propose an agent-based model accounting for day-to-day processes and within-day dynamics in markets with service providers offering private or shared rides. Amsterdam-based experiments reveal that two platforms can co-exist when ride-pooling is offered by just one of them, driven by differences in target demographics, or by both, due to negative network effects from detouring under limited demand. Fragmentation of the ride-pooling market yields 6.4% additional VKT. When both platforms offer (only) private rides, co-existence is feasible when a fraction of travellers and/or potential drivers engages in multi-homing.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"8"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146121751","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}
{"title":"Geographic determinants of goods vehicle speeding in British cities.","authors":"Long Chen, Ed Manley","doi":"10.1038/s44333-026-00106-3","DOIUrl":"10.1038/s44333-026-00106-3","url":null,"abstract":"<p><p>Vehicular speeding remains a major challenge in urban and transportation planning, influenced by numerous underlying factors. Yet the influence of urban context in determining driving speed is less well understood. In this paper we undertake a large-scale, comprehensive analysis of speeding behaviour across 13 British cities, using trajectory data from goods vehicles across 3.2 million journeys. Unlike prior studies, we assess determinants of speeding across multiple scales-from engineering interventions to regional measures of road network configuration. The results indicate that road geometry and network connectivity have a casual association with speeding, similar to the effect of engineering interventions. These findings have two clear implications for urban and transportation planning. First, the credibility of speed reduction efforts can be enhanced through considering road network context, alongside engineering interventions. Second, analyses of local spatial behaviours should incorporate measures of urban context, reflecting the nature of human spatial perception.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"38"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13233316/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148201908","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}
{"title":"Advancing electric bus transit system optimization with bus rotation across routes.","authors":"Ali Shehabeldeen, Moataz Mohamed","doi":"10.1038/s44333-025-00071-3","DOIUrl":"10.1038/s44333-025-00071-3","url":null,"abstract":"<p><p>Battery electric buses (BEBs) face significant operational constraints that limit their flexibility, especially in rotating vehicles across multiple routes. This study focuses on addressing this limitation by introducing a strategic modelling approach that incorporates BEB rotation as a decision variable into an integrated planning optimization model. The proposed model jointly determines the optimal bus-to-route assignments, charging infrastructure siting and sizing, battery capacities, and charging schedules while accounting for electricity real-time pricing (RTP) rates, greenhouse gas (GHG) emissions charges, and battery degradation. Results of a real-world transit network demonstrate that enabling BEB rotation in the planning phase reduces total system costs by 37.88%, with a 12.18% reduction in capital costs and a 59.42% reduction in operational costs. Sensitivity analyses are conducted to validate the proposed model, highlighting the influence of varying key parameters, including energy consumption, infrastructure costs, charging power, electricity RTP rates, and GHG emissions charges on the optimized outcomes.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"4"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12827050/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146055851","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}
Khatun E Zannat, Maximiliano Lizana, Judith Y T Wang, David P Watling
{"title":"Understanding the synergies among factors shaping parents' intention to use walking school buses.","authors":"Khatun E Zannat, Maximiliano Lizana, Judith Y T Wang, David P Watling","doi":"10.1038/s44333-026-00126-z","DOIUrl":"10.1038/s44333-026-00126-z","url":null,"abstract":"<p><p>Walking School Bus (WSB) programmes offer a promising approach to promoting active school travel (AST). However, there is limited consensus on how shifts from conventional travel modes to WSB will unfold. Existing AST research has examined determinants of walking and cycling, but relatively little attention has been given to WSB and similar emerging modes. This study addresses this gap by developing the Intended Mode Choice Adoption (IMCA) framework to examine the combined effects of behavioural, contextual, and socio-demographic factors on parental intentions. Survey data from 192 parents in Bradford, UK, were analysed. Results indicate that perceived behavioural control and subjective norms toward WSB, attitudes toward active travel, and satisfaction with existing travel arrangements are key determinants of parental intention to switch to WSB. These factors are influenced by distance, escorting patterns, household, and parental attributes. The findings highlight the importance of integrating behavioural constructs across both conventional and emerging modes.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"3 1","pages":"58"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13538049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890082","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}
Marcel Seger, Christian Brand, Christoph Clement, James Dixon, Charlie Wilson
{"title":"Firm level optimisation strategies for sustainable and cost effective electric vehicle workplace charging.","authors":"Marcel Seger, Christian Brand, Christoph Clement, James Dixon, Charlie Wilson","doi":"10.1038/s44333-025-00032-w","DOIUrl":"10.1038/s44333-025-00032-w","url":null,"abstract":"<p><p>Expanding electric vehicle (EV) charging infrastructure is essential for transitioning to an electrified mobility system. With rising EV adoption rates, firms face increasing regulatory pressure to build up workplace charging facilities for their employees. However, the impact of EV charging loads on businesses' specific electricity consumption profiles remains largely unknown. Our study addresses this challenge by presenting a mathematical optimisation model, available via an open-source web application, that empowers business executives to manage energy consumption effectively, enabling them to assess peak loads, charging costs and carbon emissions specific to their power profiles and employee needs. Using real-world data from a global car manufacturer in South East England, UK, we demonstrate that smart charging strategies can reduce peak loads by 28% and decrease charging costs and emissions by 9% compared to convenience charging. Our methodology is widely applicable across industries and geographies, offering data-driven insights for planning EV workplace charging infrastructure.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"2 1","pages":"11"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11913721/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143665445","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}
{"title":"Energy and economic benefits from economies of scale in intercity freight transportation.","authors":"Philip Krammer, Andreas W Schäfer","doi":"10.1038/s44333-025-00028-6","DOIUrl":"10.1038/s44333-025-00028-6","url":null,"abstract":"<p><p>Since the beginning of motorization, intercity freight transportation modes have carried an ever-increasing load and experienced a nearly continuous decline in average unit costs and energy intensity. Using a unique dataset, we demonstrate the tight, inverse relationships between the average load carried with average transport unit costs and energy intensity, which are invariant across mode, space, and time, for the countries and time periods considered. Our subsequent statistical analysis concludes that-over the last 30-35 years-economies of scale have contributed to 65-85% of the decline in energy intensity, depending on the transport mode, with only the remaining share being due to technological progress. Significant further reductions in average unit costs and energy intensity due to increasing economies of scale seem possible for particularly surface transport modes. Instead of technological advances, their realization could require legal and infrastructure adjustments.</p>","PeriodicalId":501714,"journal":{"name":"npj Sustainable Mobility and Transport","volume":"2 1","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11953041/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143757166","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}