McCormick Rankin Cagney, et al, for the New Zealand Transport Agency.

This report provides practical guidance to central, regional, and local government agencies on how to manage the transport challenges associated with rising oil prices. It provides detailed information on:
•  Future Transport Fuel Price – Various forecasts are combined to model future transport fuel prices. This suggests that average oil prices will staying around $110 USD/barrel in the near future, but will increase to approximately $150 USD/barrel in 2012.  
•  Future Travel Demands - Models are used to predict future travel demands, taking into account fuel prices, economic growth, vehicle ownership, workforce participation, and disposable income. Under the average fuel price scenario total New Zealand vehicle travel declines below current levels until approximately 2016, after which the combined effects of population and economic growth will cause vehicle travel to increase.
Optimal Responses to High Oil Costs – Various responses are identified and evaluated in terms of their ability to reduce economic risks and help achieve other planning objectives. The recommended strategies result in a more efficient and diverse transport system, providing various economic, social and environmental benefits.

Newspaper articles summarizing this study are available at
http://www.stuff.co.nz/dominion-post/591611
http://www.nzherald.co.nz/politics/news/article.cfm?c_id=280&objectid=10528808