Micro-public transport accessibility mapping to enhance local area planning (LAP) in Ahmedabad

Past studies demonstrating applications of public transport accessibility level (PTAL) mapping in urban planning in India were aimed at a city-wide scale (a few 100 sq km) with a grid size of 1 sq km. These cannot be used for smaller spatial plans, e.g., the local area plans (LAP), usually 1–3 sq km. LAPs are made to redevelop existing areas. To further enhance LAP’s potential, this study explores creating PTAL maps, using Ahmedabad as a case study, at the spatial scale of LAPs; therefore, they are called micro-PTAL maps having a grid size of 50 sq m. Four diverse one-square-kilometre study areas in Ahmedabad are used. Micro-PTAL maps allow for more surgical and, therefore, cost-effective decisions related to the design of streets and pedestrian transport infrastructure that strengthens the first/last mile public transport connectivity. We argue that without PTAL maps, the LAP as a physical planning tool cannot realise its full potential and may lead to unnecessary and inequitable public transport infrastructure. This study is also relevant in the broader context of Sustainable Development Goal 11 in addressing climate change at a city level by promoting actions towards a modal shift in favour of public transport.