The purpose of this website is to publish recent DRI reports related to research on Rollover Protection Systems (ROPS) and Crush Protective Devices (CPDs) proposed for use on All Terrain Vehicles (ATVs).

Currently this contains three reports:

• Results of an updated evaluation of the Quadbar (CPD) with methodology updates, extensions and refinements taking into account all known, valid comments on prior research,
• Replies to comments on the previous DRI research by Lower (2011) based on the findings of John Lambert, Shane Richardson and Geoff McDonald.
• Comments on the Monash/ISCRR report by Wordley and Field (Feb 2012) which is a literature review of research in this field

PLEASE NOTE - Immediately following the release of the third report (16 October 2012) it was discovered that several words were incorrect and should not have been included on pages 23, 67, 69 and 129. The version of that report now downloadable from this site has been corrected. All revisions made since the release of the original version of each of the 3 reports are indicated.

Updated injury risk-benefit analysis of Quadbar crush protection device (CPD) for all-terrain vehicles (ATVs), Zellner, et al, First Rev, 2012-08-06

Replies to Lower (2011) Comments, Zellner, et al, First Rev, 2012-08-06

Comments on Monash ISCRR report by Wordley and Field (2012) report, Revision 1, 2012-10-17