John T Hughes, BE (Civil), MIPENZ
Regional Transportation Engineer
Transit New Zealand, P. O. Box 1459
Auckland, New Zealand

Introduction and Objectives

The objective of this paper is to present an outline of the model building process and selected findings from a traffic simulation model of a congested 9.7 km section of an urban freeway in Auckland, New Zealand. Field data was collected to provide a comprehensive set of New Zealand traffic characteristics for the freeway micro-simulation model. The data set constitutes a detailed "snapshot" of traffic conditions over one week (23 to 29 September 1997), with additional detail on particular days. The data, which include traffic speeds, volumes, headways, accelerations and lane change counts, are being used to build an AIMSUN2 traffic simulation model. This is a new tool that can provide input into transport investment decisions in Auckland.

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