and street lighting, can be provided costeffectively. Many planners and policymakers believe that “sustainable communities are places that exhibit a compact urban form.” (Beatley 1995) However, there is debate about the very definition of a ‘compact city’ and, in particular, about what policies need to be undertaken to achieve urban compaction, whether these particular policies do in fact, contribute to sustainability. According to Breheny (2001) “policies of urban compaction involve the promotion of urban regeneration, the revitalisation of town centers, restraint on development in rural areas, higher densities, mixed-use development, promotion of public transport and the concentration of urban development at public transport nodes.” Researchers have renounced many of these policies as being uneconomic and against the wishes of the general population, who have characterized the twentieth century by a rejection of inner-city living and the invention of suburbia. The nature of intensification is also important; development in mixed-use town centers is usually perceived to have a positive effect, especially if landscaping and urban design improvements are subsequently implemented. Infill housing developments in residential suburbs are frequently perceived as being of poor quality and therefore having a detrimental effect on the environment and sustainability in general. A model of an existing context is built to a consistent quality, and developers and/or architects are required to “plug-in” their model of a proposed development and various alternatives at the same level of detail, accuracy, and visual quality as the existing contextual model. Additionally, the so-called activity- based approach (Jones 1990) is a useful conceptual framework for the travel activities study. Nearly all travel activities are derived from the need or wish to fulfill physiological needs (eating, sleeping),