Mapping Sustainable Transport Equity with Data: A Blueprint for Cities

In cities worldwide, inadequate transport infrastructure often creates significant challenges, especially for those who have no or limited access to a private car. New research from researchers at the University of Liverpool has developed an innovative way to address these issues through data-driven insight, helping policymakers target those areas most in need of transport investment and promoting a transition to sustainable transport equity.

A New Way to Look at Transport Supply and Demand

Transport accessibility has always been a key factor in urban planning. However, the traditional methods focus largely on how close people are to transportation hubs, without considering whether these services meet the actual demand. This research changes that by introducing a two-dimensional urban indicator approach, which assesses both the supply of transport infrastructure (e.g. bus stops, cycle paths), and the actual demand for these services by local residents. By combining these two elements, we can better identify areas where the transport system isn't meeting local needs, providing a more accurate picture of where transport inequality exists and offering a pathway to create more equitable, sustainable cities.

Why Does It Matter to You?

Improved transport accessibility isn't just about convenience; it's about reducing carbon emissions, providing equitable opportunities for all residents, and creating healthier urban environments. When cities invest in sustainable transport options like buses, trains, and cycling routes, they encourage people to move away from private cars, easing congestion and lowering pollution. In Liverpool, where this research was tested, the findings highlighted several areas where investment could make the most impact. Many neighbourhoods have good access to bus services but lack adequate cycling infrastructure, while others are underserved by all modes of transport. By focusing on these imbalances, city planners can prioritise where to improve infrastructure to derive maximum benefits for local populations. ?

How Can Cities Use This Data?

Cities can use these indicators to strategically direct investments where they are needed most. For example, the research identified that in some areas, even though demand for cycling is high, the infrastructure doesn’t support it. In these cases, building better cycling paths would likely lead to an increase in bike usage, reducing car traffic and contributing to environmental goals. This approach could significantly improve urban planning. Not only does it provide a clearer understanding of where the biggest gaps in transport accessibility are, but it also aligns with broader sustainability goals. As more cities commit to reducing carbon emissions, tools like these will be essential for ensuring that everyone has equal access to efficient, sustainable transport.

Read the full open access paper at:

Ballantyne, P., Filomena, G., Rowe, F., Singleton, A. 2024. Developing two-dimensional indicators of transport demand and supply to promote sustainable transportation equity. Computers, Environment and Urban Systems, 113, 102179. DOI: https://doi.org/10.1016/j.compenvurbsys.2024.102179.

Patrick Ballantyne , Gabriele Filomena Francisco Rowe Alex Singleton