• Energy Research

An integrated approach to transport and spatial development has been promoted over the past decades not only in North America and Europe but also in rapidly growing cities in Asia as a means to achieve sustainable urbanization. Some fundamental issues are yet to be discussed. To what extent does land use and transport integration (LUTI) meet its goals including triggering sustainable land use and enhancing environmental quality? What are the key barriers and opportunities to achieving broader social outcomes such as wellbeing of local populations? This paper critically reflects on LUTI planning and practice in rapidly developing cities with focus on ongoing challenges and opportunities to facilitating sustainable urban development. It points out that without establishing institutional harmonization between spatial and transport planning, LUTI policies are hardly implemented, thus rarely resulting in effective and sustainable land use. Moreover, enhancing the social outcomes by an integrated planning approach requires development control that facilitates various actors to embed quality criteria in development around nodes. Balancing development incentives and restrictive measures for development is critical. Finally, to facilitate sustainable outcomes across varied localities in cities, bottom-up and top-down planning approaches need to be reconciled through the strategic and operational phase of transport projects.

This paper investigates how social outcomes from urban transport projects typically play out by reflecting on multi-scale spatial changes induced by projects over time, and the extent to which such changes meet varied interests in project outcomes. We use a multi-methods case study approach using two exemplars, a metro project in London and Seoul, which established extensive public transport networks to support urban growth. Our study highlighted that urban transport network expansion does not always enhance life opportunities for all due to intermediate and cumulative impacts of spatial changes induced by projects. Immediate benefits such as enhanced accessibility were often undermined by long-term consequences of incremental spatial changes at local scales. This study also indicated that differential patterns of spatial changes around nodes between centre and periphery could be attributed to multiple negative impacts on people living in the most deprived areas. To enhance social outcomes, we suggest an integrated approach to urban transport and spatial development that focuses on scale and temporal dimensions of spatial transformation enacted by projects. In conclusion, achieving sustainable and equitable effects from urban transport infrastructure requires careful examination of broader societal consequences of long-term spatial changes and locational contexts, especially function and socio-economic conditions.