The advent of new technologies in last mile deliveries is about to cause a disruption in the traditional business model applied in urban cargo transportation, thus presenting innumerous research opportunities in this field of knowledge. In this context, identifying new operation models and vehicles that could be applied for last mile deliveries in urban areas becomes crucial. Therefore, this paper aims to identify, through a systematic literature review, the main types of vehicles addressed in the literature that could be used in the last mile of urban freight distribution in order to increase the sustainability of this type of operation. The results indicate a trend for the implementation of smaller and lighter vehicles for last mile deliveries in urban areas: 47% of the studies suggest, among other alternatives, the use of bicycles and tricycles; while 53% of the articles support the use of light commercial vehicles. Another trend observed in this type of distribution, indicated in 64% of the studies, is the shift from conventional (fossil fuels) to alternative sources of energy (electricity).

Establishing viable targets and pathways to achieve low-carbon mobility is proving to be a growing challenge, especially in emerging economies. Brazil has faced persistent economic and political crises, impacting current and future climate policies. The acceleration of resource exploitation and environmental degradation has increased the role of the transport sector in mitigating Brazilian emissions. Despite advances in instruments aimed at high-capacity infrastructure and the biodiesel and ethanol markets, electric mobility and other advanced biofuels, such as biokerosene and green diesel, are moving slowly. Part of this stems from severe technical, policy, and financial barriers that need to be addressed. This paper identifies the main barriers faced and the instruments needed to accelerate decarbonization in the Brazilian transport sector. To this purpose, a stakeholder-oriented approach is developed and applied to distill low-carbon opportunities and enablers over the next decade. This article reveals the important relationship between climate commitments, the different obstacles faced, and the possible consequences, taking different perspectives on appropriate reference points. By 2025, instruments aimed at electric mobility and public transport, although still scarce in current policies, will have greater potential for implementation. This contrasts with other advanced biofuels, which are not expected until the end of the decade.

As society has experiences new modes of mobility in recent years, cities have planned to increase their energy efficiency as a way of reducing environmental impacts and promoting economic development. However, governments face difficulties in establishing mechanisms to determine the best actions in the management of urban mobility regarding energy efficiency and to elaborate a ranking of cities based on energy efficiency in order to better allocate resources. This is due to the complex nature of obtaining a wide range of activity and energy data from a single municipality, especially in data-scarce regions. This paper develops and applies a model for estimating the energy efficiency of urban mobility that is applicable to different contexts and backgrounds. The main contribution of the article is the use of a multitier approach to compare and adjust outputs, considering different transport configurations and data sets. The results indicate that variations in vehicle occupancy and individual motorized transport rates have a significant impact on energy efficiency, which reached 0.70 passenger-kilometers/MJ in Sorocaba, Brazil. However, as the use of electric vehicles increases in this city, this scenario is expected to change. Additionally, the method has been proven to be an important mechanism for benchmarking purposes and for the decision-making process for transport investments.

This study examines the role of Low and Zero Emission Zones (LEZ/ZEZ) as urban climate-governance instruments in Latin American cities, using Rio de Janeiro as a case study. The objective is to assess the feasibility and institutional readiness for implementing a LEZ/ZEZ in the city’s central area, taking into account its regulatory framework, urban context, and transport- and emissions-related conditions. The methodology adopts an exploratory, qualitative approach based on the ASIF (Activity-Structure-Intensity-Fuel) framework, combined with a systematic review of municipal legislation, climate action plans, emissions inventories, and international best practices. Rather than developing a mathematical or predictive model, the study organizes these policy and institutional elements into a structured decision-support framework and proposes a roadmap to guide phased implementation. The results show that Rio de Janeiro possesses a favorable legal and policy environment for LEZ/ZEZ deployment, particularly through its Climate Action Plan and the legally established District of Low Emissions, while also identifying constraints related to data availability, monitoring capacity, and inter-institutional coordination. The study concludes that the proposed framework provides a practical governance-oriented tool to support low-carbon urban transitions, whose operational effectiveness will depend on future quantitative data collection, transport-demand simulation, and stakeholder engagement to strengthen evidence-based decision-making.

The transport sector is a major contributor to global greenhouse gas emissions, making its decarbonization critical for climate change mitigation efforts. The Marginal Abatement Cost (MAC) curve is a vital tool that evaluates the cost-effectiveness of mitigation measures by comparing their emission reduction potential against their implementation costs. This paper conducts a literature review to analyze the application of the MAC curve in the transport sector, identifying common mitigation measures, comparing abatement costs, and assessing the tool’s role in shaping decarbonization policies. The findings reveal a predominance of technology-focused, bottom-up methodologies, with a significant research gap in the freight sector, which is largely overlooked compared with passenger transport. The results show that the abatement costs for similar measures vary considerably across geographical contexts, influenced by local factors such as fuel prices and gross domestic product (GDP). The analysis suggests that combining technological solutions with behavioral and structural changes creates synergistic effects, yielding greater benefits than isolated actions. The strong alignment observed between measures analyzed in the literature and subsequent national climate policies confirms the MAC curve’s strategic importance as an evidence-based instrument for policymakers to construct economically rational decarbonization pathways.

A demanda por serviços de transporte em todo o mundo é um fenômeno que cresce à medida em que o processo de urbanização avança. No entanto, o excessivo uso de veículos acentua os problemas relacionados às entregas de última milha e à emissão de poluentes atmosféricos locais. O objetivo deste estudo é avaliar a sustentabilidade alcançada por meio da utilização de triciclos elétricos na distribuição postal na cidade do Rio de Janeiro. Identificou-se a redução de 27,86% do custo total de transportes. Ademais, observou-se reduções mensais de emissões de poluentes atmosféricos por rota de 10,11 g de CO; 32,78 g de NOX; 0,02 g de RCHO; 0,7 g de NMHC e 0,33 g de MP, enquanto que as reduções mensais de GEE por rota foram de 21,01 kg de CO2eq. Com relação aos aspectos sociais, a frequência cardíaca mostrou-se constante durante toda a operação, enquanto, na operação de distribuição tradicional intermodal, verificou-se uma maior variação durante a operação de entrega.