In line with the EU Green Deal, Member States must play an active role in reducing greenhouse gas emissions. One of the economic instruments used by the Member States is environmental taxes (Brizga et al., 2022), which has an impact on public and private mobility. Transport is an important source of greenhouse gas emissions throughout the European Union. For example, in Latvia, transport is the second largest source of pollution for 29% of the total volume and one of the only sectors where emissions continue to increase, as more and more people switch from public transport to private cars (Jurušs & Brizga, 2017). The aim of the study is to assess what would be the best solutions for achieving the indicators set out in the Green Deal in the field of transport, especially assessing the impact on socio-economic aspects. The study uses quantitative methods for statistical analysis and forecasting the impact of multifactorial nonlinear regression. It should be noted that in recent years, the COVID-19 pandemic and the energy crisis have had a significant impact on public and private mobility (Brizga J. & Jurušs M., 2023). The study utilized statistical and Google tracking data on transportation, along with surveys on remote work and economic indicators. Factors like government measures, energy costs, work patterns, and security attitudes significantly impacted people’s mobility. Findings reveal that COVID-19 minimally affected the economy and employment, while energy crises and inflation had a larger impact. Both crises altered spending: the pandemic led to savings, whereas energy crises increased costs. These external shocks, though disruptive, offer a chance for policymakers, activists, and researchers to support sustainable mobility transitions. Such cases should prepare cities and nations for future transport management through understanding changing modes and drivers of transportation. Tax measures might not be sufficient for the transformation towards sustainable mobility. It is necessary to promote both the use of alternative means of transport (e-car) and to look for other solutions. One of the prerequisites for the development of e-car use is an appropriate accessible infrastructure (charging stations). That is why the European Union is actively thinking about how to promote it. In this context, the Council of Europe has already adopted a new law on more recharging and refuelling stations across Europe (Council of the EU, 2023). Renewable energy should also be promoted in transport, in this regard the new Renewable Energy Directive intends to raise the renewable energy target in transport from 14% to 29% (European Parliament, 2023). Future studies should more focus on the impact of both the economic and administrative tools on the transmission of sustainable mobility.