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Conference paper

The role of Adelaide's transit oriented developments towards creating a low carbon transit future city

Future cities Low carbon cities Cities and towns Public transport Urban planning Adelaide
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Abstract: The release of the 30 Year Plan for Greater Adelaide (30YPGA) in 2010 set out an ambitious plan to transform a car oriented city into a transit oriented city. This would ultimately be achieved by developing a network of over 30 centres built to transit oriented development (TOD) principles connected by densely developed transit corridors. The 30YPGA implies that this will result in an environmentally sustainable city in which transit induced carbon emissions will be greatly reduced. This should be achieved through a modal switch for work journeys from private car to public transit, cycling and walking and through people choosing housing that is co-located near or in TODs, thereby minimizing the need to travel by car. However, given that the 30YPGA reassures Adelaide’s populace that at least two thirds of the metropolitan area will remain unchanged (i.e. low density car dependent residential development), the overall changes to Adelaide’s urban morphology may be modest at best. This paper explores Census data to examine the scale of transport related carbon emissions reductions that can be achieved by the 30YPGA over three stages: (1) a CBD centric interim park and ride phase commuter model where existing car trips to the CBD are substituted with park and ride; (2) a CBD centric commuter model using a TOD and transit corridor network; and (3) a fully fledged TOD network where residents collocate their jobs and housing to minimize their need for carbon inducing urban transit. A caveat with this research is that it focuses only on the transport related component of greenhouse gas emissions and does not include carbon emissions related to housing and embodied energy. The paper concludes with suggestions for how the 30YPGA needs to be modified or improved if a low carbon transport future is to be achieved.

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