My research assesses the impacts Mega Urban Transport Projects (MUTPs) have on urban communities by exploring changes in socio-demographic profile, accessibility and deprivation over time. I am interested in sustainable development and want to know to what extent we can visually explore issues such as social-cohesion/exclusion, sustainable mobility and affordability. I use GIS to spatially analyse data at the smallest spatio-temporal scale and look at ways that the results can be mapped to help urban planners evaluate and appraise an MUTP. The MUTPs under study are two inter-urban railways; Channel Tunnel Rail Link and 2 hubs (Ashford and Ebbsfleet/Gravesham) in the UK, and KCRC West Rail Extension and 2 hubs (Tuen Mun and Yuen Long) in Hong Kong, so as to explore the effects of context on the impacts.