Service ItemId: 898e77d403c443c4961ada073d144735
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
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Description: You can also access a zipped csv file version of this dataset.
TMS (traffic monitoring system) daily-updated traffic counts CSV
Data reuse caveats: as per license.
Data quality
statement: please read the accompanying user manual, explaining:
- how this data is collected
- identification of count stations
- traffic monitoring technology
- monitoring hierarchy and conventions
- typical survey specification
- data calculation
- TMS operation.
Traffic monitoring for state highways: user manual [PDF 465 KB]
The data is at daily granularity. However, the actual update frequency of the data depends on the contract the site falls within. For telemetry sites it's once a week on a Wednesday. Some regional sites are fortnightly, and some monthly or quarterly. Some are only 4 weeks a year, with timing depending on contractors’ programme of work.
Data quality caveats: you must use this data in conjunction with the user manual and the following caveats.
- The road sensors used in data collection are subject to both technical errors and environmental interference.
- Data is compiled from a variety of sources. Accuracy may vary and the data should only be used as a guide.
- As not all road sections are monitored, a direct calculation of Vehicle Kilometres Travelled (VKT) for a region is not possible.
- Data is sourced from Waka Kotahi New Zealand Transport Agency TMS data.
- For sites that use dual loops classification is by length. Vehicles with a length of less than 5.5m are classed as light vehicles. Vehicles over 11m long are classed as heavy vehicles. Vehicles between 5.5 and 11m are split 50:50 into light and heavy.
- In September 2022, the National Telemetry contract was handed to a new contractor. During the handover process, due to some missing documents and aged technology, 40 of the 96 national telemetry traffic count sites went offline. Current contractor has continued to upload data from all active sites and have gradually worked to bring most offline sites back online. Please note and account for possible gaps in data from National Telemetry Sites.
The NZTA Vehicle Classification Relationships diagram below shows the length classification (typically dual loops) and axle classification (typically pneumatic tube counts), and how these map to the Monetised benefits and costs manual, table A37, page 254.
Monetised benefits and costs manual [PDF 9 MB]
For the full TMS classification schema see Appendix A of the traffic counting manual vehicle classification scheme (NZTA 2011), below.
Traffic monitoring for state highways: user manual [PDF 465 KB]
State highway traffic monitoring (map)
State highway traffic monitoring sites
TMS (traffic monitoring system) traffic – historic quarter hourly
Copyright Text: Waka Kotahi NZ Transport Agency
Spatial Reference: 2193 (2193)
Initial Extent:
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YMin: 4355060.69832219
XMax: 4127597.12694257
YMax: 6964770.89832344
Spatial Reference: 2193 (2193)
Child Resources: Info
Supported Operations: Query ConvertFormat Get Estimates Create Replica