Hong Kong is one of the busiest and most compact vertical cities in the world. Yet it is also one of the most walkable urban centres on the planet with networks of interlinked multi-level walkways connecting transportation hubs, markets, shopping malls and residential areas.  However, as the ageing population grows and new infrastructure projects and high-rises are squeezed into the city’s already crowded spaces, people who use these walkways are under increasing pressure to find clear, direct routes to their destinations.  The HKUrbanLab, the research and knowledge exchange arm of the Faculty of Architecture at The University of Hong Kong, is working with Civic Exchange and the Hong Kong Council of Social Service on a project called ‘Walking with Wheels’, aimed at finding the best barrier-free routes for people in wheelchairs and those with prams and trolleys.