Typologies of stations’ catchment areas in metropolitan urban peripheries: From car-oriented to sustainable urban strategies

After decades of sprawl and car-dependent urban developments, especially on the peripheries of metropolitan areas, new policies are being oriented towards more efficient and sustainable mobility. In the process of change towards more sustainable mobility patterns in peripheral areas, commuter railways must play a predominant role because of their capacity and speed. The main aim of this paper is to analyse commuter rail stations’ catchment areas (SCAs) to identify typologies of these nodes in large metropolitan areas as a key step in proposing strategies for making mobility much more sustainable, both in the medium and proximity scales, by promoting soft mobility towards stations, a strategy that will facilitate commuters’ use of daily rail transport. The method proposed is based on a twofold clustering analysis. The first is to consider urban-planning variables to detect consolidated stations; the second is to use both public space and land-use variables to characterise the quality of the urban environment for walking/cycling. These methods are applied in the metropolitan area of Madrid and offer some key insights. The results show that different typologies are found – from consolidated, dense and mixed-use SCAs, with large residential developments, to low-density SCAs in sprawl areas or low consolidated mixed-use SCAs with large parking spaces, following the park-and-ride model, among others. This identification of SCAs’ typologies is key for policy makers to propose different strategies, which could be small projects oriented towards improving public spaces promoting soft mobility, or deeper changes that require a re-densification process in the stations’ surroundings, breaking with the rigid definition of transit-oriented developments and adapting the decisions taken to each context.