Crash Analysis System (CAS) data

Update 10/12/2020: field type change. The field type for ‘crashFinancialYear’ has changed from integer to text.

This data comes from the Waka Kotahi Crash Analysis System (CAS), which records all traffic crashes reported to us by the NZ Police. CAS covers crashes on all New Zealand roadways or places where the public have legal access with a motor vehicle.

The data updates monthly, one the second week of each month. Data is currently available from 1 January 2000. The dataset includes crash variables that aren’t non-personal data.

To give you a quick overview of the data, see the charts in the ‘Attributes’ section below. These will give you information about each of the attributes (variables) in the dataset.

Each chart is specific to a variable, and shows all data (without any filters applied).

Crash Analysis System data - field descriptions

Data reuse caveats: as per license.

We’ve taken reasonable care in compiling this information, and provide it on an ‘as is, where is’ basis. We are not liable for any action taken on the basis of the information. For further information see the Waka Kotahi website, as well as the terms of the CC-BY 4.0 International license under which we publish this data.

CC-BY 4.0 International licence details

Variables in the dataset are formatted for analytical use. This can result in attribute charts that may not appear meaningful, and are not suitable for broader analysis or use. In addition, some variables are not mutually exclusive and should not be considered in isolation. As such, these charts should not be taken and used directly as analysis of the overall data.

Data quality statement: we aim to process all fatal crashes within one working day of the crash report being received.

We aim to process all injury crashes (serious and minor injury) within 4 weeks of the crash report being received.

Up-to-date information on current number of outstanding crash reports

Most unprocessed crash reports will be for crashes where there weren’t any injuries.

Data quality caveats: people don’t report all crashes to the NZ Police. The level of reporting increases with the severity of the crash.

Data and Resources

Additional Info

Field Value
Theme ["geospatial"]
Author Waka Kotahi
Maintainer Open.Data_NZTA
Maintainer Email Open.Data_NZTA
Created 2020-03-24T19:23:28.000Z
Date modified 2021-05-11T09:33:44.000Z
Language English
Spatial {"type": "Polygon", "coordinates": [[[167.1006, -46.856], [-177.6367, -46.856], [-177.6367, -34.0715], [167.1006, -34.0715], [167.1006, -46.856]]]}
Source Identifier
Record created May 11, 2021, Last Updated May 13, 2021