Net-Zero Mobility: Social Considerations for Limiting Private Vehicle Access

Public transport is essential for access to jobs, education, healthcare, and other services, and plays a key role in preventing social exclusion and economic hardship. In the move towards net-zero, many cities have turned to vehicle access restrictions such as low-emission zones (LEZs), congestion charges, and traffic limitations. These measures can cut emissions and ease congestion, but if they are not designed with equity in mind, they risk leaving people behind. Lower-income households, flexible workers, people with reduced mobility, and marginalised communities may face additional barriers (financial, physical, or social) that make it harder to adapt.

This Policy Brief looks at how cities and transport organisations can work together to ensure that mobility solutions are both sustainable and inclusive. The guiding principle is a just transition: the shift to climate-neutral mobility in a way that strengthens communities and economies rather than disadvantaging vulnerable groups. Achieving this requires more than technical fixes. It calls for holistic approaches that combine demand management, behavioural change, and policy innovation, making sure the benefits of cleaner air, safer streets, and better health are shared by all.

A central focus is on Urban Vehicle Access Regulations (UVARs) and similar instruments. Drawing on insights from the CIVITAS ReVeAL project, the brief highlights that UVARs can be highly effective when aligned with wider mobility, land-use, and economic strategies. Their objectives go well beyond reducing emissions: they can relieve congestion, improve fairness in the allocation of limited urban space, and help create people-centred cities. For these measures to succeed, they need to be embedded in inclusive frameworks and supported by strong investment in public transport, walking, cycling, and shared mobility.

The brief introduces the 4 A’s framework – Availability, Accessibility, Affordability, and Acceptability – as a benchmark for ensuring that sustainable alternatives are in place before restrictions are enforced. Several examples are cited in the brief, such as: London’s Superloop bus network was rolled out alongside the expansion of the ULEZ; Barcelona paired its LEZ and high parking charges with a 100% accessible bus system; and Vancouver introduced concessionary passes for children to encourage early adoption of sustainable habits. These cases show that when inclusive design comes first, restrictive measures gain public support and drive behavioural change.

Building political and public support is another key theme. The brief identifies social biases such as motonormativity and car blindness, which reinforce car dependency and make change harder to accept. To address this, policymakers need clear communication, strong community engagement, well-designed pilot projects, and equitable mitigation measures like subsidies, exemptions, or scrappage schemes.

A set of international case studies illustrates both progress and challenges in this sense: from New York’s congestion pricing and London’s ULEZ expansion, to Oslo’s toll ring, Medellín’s low-emission zones, Mexico City’s parking reforms, and Brussels’ inclusive car-sharing initiatives. These examples show that, with careful design and equity considerations, cities can deliver cleaner air, safer streets, and more liveable spaces.

The brief concludes that the journey to net-zero mobility is not only a technical challenge but also a societal one. By embedding inclusivity in policy design, engaging diverse stakeholders, and continuously assessing social impacts, cities can ensure that the road to net-zero is both effective and fair, securing long-term environmental and social benefits.

Key Recommendations

1. Integrate mobility measures into broader strategies that support public health, inclusion, and road safety. They should enhance service quality and promote green transport, multimodal connectivity, and behavioural change, rather than be implemented in isolation.
2. Build political and institutional support: Educate policymakers on the social benefits of inclusive access regulations and create coalitions to champion equitable urban mobility policies. Clear and continued leadership is essential to build trust, foster long-term acceptance and, most important, ensure long-term emissions reductions.
3. Adopt an inclusive policy lens when designing environmental strategies: Build your evidence-based framework, conduct impact and equity assessments, and ensure that negative impacts on vulnerable groups are minimised and mitigation measures are well established within these communities.
4. Engage local communities in decision-making: Conduct public consultations, focus groups, and surveys, especially in marginalised areas, to ensure that transport-related changes align with community needs.
5. Ensure that the access regulations are implemented holistically: Better integration between land-use planning and transport planning strengthens a modal shift and helps avoid moving the congestion and poor air quality to other areas of the city/region.
6. Integrate available, affordable, accessible, and acceptable transport before or in parallel to access measures: Ensure that regulations consider social equity, engaging diverse stakeholders such as marginalised communities, low-income workers, and people with disabilities. Make sure that transport improvements, such as expanded bus and metro services, are well-funded, accessible, safe, and reliable to lower-income communities to prevent displacement and improve connectivity.
7. Introduce equity-based mitigation measures: Provide subsidies, exemptions, or discounts for low-income commuters, essential workers, and individuals with mobility impairments to prevent disproportionate burdens. However, do not create too many rules and exemptions that confuse stakeholders and deter them from the main environmental goals. If the rules are not clear or not strong enough, you risk people not following them and/or not changing their behaviour.
8. Education and awareness raising: Raise awareness about the benefits of sustainable mobility and the importance of transitioning to net-zero cities, engaging all actors in the process and fostering a culture of sustainability.
9. Monitor, evaluate, and adapt: This entails piloting new approaches on a smaller scale, then uptake with agile mechanisms for ongoing assessment, monitoring against KPIs, and adapting regulations based on changing urban needs and feedback from communities. Roll out measures incrementally to reach climate goals, especially as public acceptance increases once people see the benefits to overall liveability.