Crash Data - A Message from Support

Crash Data – NZTA has changed the data format – your next download will be different

The Crash data file you next download will will be in a different format from your existing data. Also, it will include data only from 1 January 2000. You will need to choose the option in RAMM Manager which removes the old Crash data when uploading the latest Crash data into RAMM.

You do this by downloading the .cja file for your TLA from the list below. You save this file in a place accessible to you. Next you launch RAMM Manager and follow the menu path Projects > Crash Data > Import. Select I already have the data. Press Next. Press the ellipsis, locate and select the .cja file. The Import Crash Data screen will show information on the import file. Press Next. You then select Load all the data and press Next. The system will automatically remove all your existing Crash data and then import the data from the file that you downloaded from our website.

You will then have Crash data from 1 January 2000 in your database in the new format.

NZTA Crash Data

NZTA Crash Data

RAMM Software thanks NZTA for making Crash Analysis System (CAS) data available to RAMM clients.

This data has been processed and converted by us into a format which can be imported into RAMM.

Skid Resistance

Using Crash Data

The crash data can be used in conjunction with Skid Resistance (SCRIM) survey data to assist in determining those sites that may require resurfacing.

Crash data can be used from RAMM Map and is summarised per treatment length for easy analysis.

Crash Data in RAMM

Crash Data in RAMM

The files below contain crash data from 1 January 2000. It is current to 17 September 2019.
Select your region and the file you require below. Save the file, and make a note of where you’ve saved it.
You import the data using RAMM Manager by going to Projects > Crash Data > Import.

Please note that if this is the first time you have imported Crash Data in the new format, you will need to follow the instructions at the top of the page.

Local Authorities

North Island




Bay of Plenty



Hawke's Bay



South Island




West Coast


Chatham Islands



New Zealand Transport Agency Regions

NZTA New Zealand