You can also access a zipped csv file version of this
dataset.TMS
(traffic monitoring system) daily-updated traffic counts CSVData 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
