The objectives of this research project were to produce a comprehensive national database of information on trips and parking related to land use in New Zealand since 1990, to identify trends that have occurred since the 1970s, and to compare the New Zealand results with those reported in American and Australian publications.
The research project took place in New Zealand between 1998 and 2001. It found that there has been a general increase in total traffic by a factor of 2.2 during the last 30 years but that, while for some land-use activities (education, hospitals, medical centres, large service stations) there has been a considerable increase, for most there has been little change. The main reasons are that this traffic growth is distributed relatively evenly to new developments around New Zealand's urban and rural areas, sharing trip making between existing and new sites, and the shift to weekend trading. The diffusion of traffic is placing greater demand on the road networks, but at individual sites the traffic generation has not increased as much as the rate of car ownership or traffic growth.
There is a general consistency between land-use activities in New Zealand and those reported in American and Australian publications.
The report includes a consideration of seasonal factors, the use of the 30th highest design hour, and the requirements for future surveys and data of trip generation and parking demand. The full trip and parking surveys database is presented in volume 2.
Keywords: City centre, design hour, land use, New Zealand, parking demand, residential, retail, surveys database, trends, trip generation