Paulo Ribeiro

Sport mega-events, like the Olympics, are renowned for their urban and socioeconomic impacts. Based on a literature review, this paper proposes a holistic framework for an Olympic-led sustainable planning process, encompassing five key sustainable urban principles: accessibility, integration, flexibility/adaptability, security, and sustainability compliance. The framework provides a structured approach to assess these principles at three different temporal and spatial levels: location selection, pre-event planning, and post-event planning. The proposed holistic framework is applied to the Rio 2016 Summer Olympics, revealing a significant disconnection between the initially promised sustainable development goals and practical achievements. While enhancements in accessibility were observed, the other key sustainable urban principles exhibited limited or negligible improvements. The proposed holistic framework holds the potential to foster lasting positive impacts and sustainable urban improvements in host cities, particularly in developing countries.

In 2020, only 0.9% of buses running in European Union countries were electric, with 93.5% still being diesel-powered. The Sustainable and Smart Mobility Strategy set out by the European Commission targets a reduction of at least 55% in greenhouse gas emissions by 2023 and the achievement of climate neutrality by 2050. These targets will only be met by a shift to sustainable mobility, which comprises the introduction of electric vehicles in cities and the adoption of battery electric vehicles (BEV) for urban public transport. Thus, a literature review on “electrification of bus fleets” was conducted, focusing on the practices adopted for the replacement of polluting buses with electric-powered ones. A total of 62 documents were included in the final investigation, and their results were used to conduct a SWOT analysis. It is possible to conclude that BEBs are an important asset for cities to decarbonize the transport sector and that they are more cost-effective than diesel buses. On the other hand, some attention needs to be given to the generation of energy that will feed the charging of batteries because the use of fossil fuel energy sources can jeopardize the environmental benefits of BEBs.