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State Highway Traffic Volumes
The traffic data is intended to be used as an approximate indication of traffic flows on state highways throughout New Zealand.
Traffic monitoring provides a fundamental tool for the management of the State Highway network.
The measure of the traffic demand, imposed on the network, enables Transit New Zealand to effectively and efficiently allocate resources.
The information contained in these publications is derived from Transit's traffic data collection system.
This consists of a hierarchy of equipment that ranges from sophisticated weigh-in-motion and vehicle classification collection via telemetry to simple portable tube traffic counters.
The data collection, and processing, for the permanent weigh-in-motion and telemetry sites is managed by Transit's National Office in Wellington. The ATMS sites on the Auckland motorways are operated, on behalf of Transit Auckland, by an external contractor. The remaining sites, which represent the large majority of the sites throughout New Zealand, are not monitored continuously, and are counted several times a year as part of Transit's regional traffic counting programmes managed by the Transit regional offices.
Transit welcomes any feedback on this publication.
State Highway Traffic Volumes
| Title | Download |
|---|---|
| State Highway Traffic Data Booklet - 2003 to 2007 | PDF (794KB) |
| State Highway Traffic Data Booklet - 2002 to 2006 | PDF (794KB) |
| State Highway Traffic Volumes - 2001 to 2005 | PDF (203KB) |
| State Highway Traffic Volumes - 2000 to 2004 | PDF (401KB) |
| State Highway Traffic Volumes - 2003 | PDF (271KB) |
| State Highway Traffic Volumes - 2002 | PDF (184KB) |
| State Highway Traffic Volumes - 2001 | PDF (178KB) |
| State Highway Traffic Volumes - 2000 | PDF (362KB) |
| State Highway Traffic Volumes - 1999 | PDF (389KB) |
| State Highway Traffic Volumes - 1998 | PDF (377KB) |
| State Highway Traffic Volumes - 1997 | PDF (386KB) |
| State Highway Traffic Volumes - 1996 | PDF (552KB) |
| State Highway Traffic Volumes - 1995 | PDF (257KB) |
| State Highway Traffic Volumes - 1994 | PDF (247KB) |
| State Highway Traffic Volumes - 1993 | PDF (241KB) |
| State Highway Traffic Volumes - 1992 | PDF (365KB) |
| State Highway Traffic Volumes - 1991 | PDF (362KB) |
| State Highway Traffic Volumes - 1990 | PDF (367KB) |
| State Highway Traffic Volumes - 1989 | PDF (356KB) |
| State Highway Traffic Volumes - 1988 | PDF (526KB) |
| State Highway Traffic Volumes - 1986 | PDF (557KB) |
| State Highway Traffic Volumes - 1975 to 1984 | PDF (1.55MB) |
Disclaimer
The traffic data contained in this document is intended to be used as an approximate indication of traffic flows on state highways throughout New Zealand. The traffic volumes are typically calculated from individual counts over one week intervals. Most sites are counted one, two or three times a year, with other sites counted on a continuous basis.
The limitations of the traffic counters and their installation, conversion of axle pairs to vehicle counts (in the case of tube counts), seasonal variations, congestion effects, and various analysis procedures contribute to a level of approximation in the data. These factors should be taken into account when using the AADT data.
For detailed design and project evaluation purposes, the actual traffic counts upon which this document is based can be obtained from the appropriate Transit region office.
Transit and its employees or agents involved in preparation and publication of this document cannot accept liability for its contents or for any consequences arising from its use. People using the contents of this document should apply, and rely upon, their own skill and judgement. The contents should not be used in isolation from other sources of advice and information.