Welcome to the


Static roll threshold (SRT) is a measure of a vehicle's resistance to roll over during a steady speed cornering manoeuvre. This software provides a calculator for estimating a vehicle's SRT. New users are encouraged to open the help page to assist them with the input parameter definitions. A detailed user guide which is formatted for printing is also available. A validation test using a tilt table has been undertaken and the report is available on-line.

This software requires Microsoft Internet Explorer version 4.0 or Netscape Navigator version 4.07 or higher.

If you use Microsoft Internet Explorer version 4.0 and you wish to use to SRT Calculator to assess the stability of vehicles with sloping decks or stepped decks, then you may need to upgrade Microsoft Internet Explorer to version 5.5 or higher.

By using this software the user accepts the terms and conditions of the licence agreement.

  • Exempt vehicles

  • Type of Vehicle
    No of Front Axles:
    No of Rear Axles:
    Target Minimum SRT (g)  

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