looking for research _ overland track users and usag

Can anyone assist please: Am looking for any research conducted on users and usage on the overland track. Would prefer something that is available online, but if not thats ok as am happy to track down a paper copy.
Would like something of a similar standard to the 2008 Department of Environment and Conservation And Bibbulmun Track Foundation, Bibbulmun Track User Research Report
thanks in advance
Would like something of a similar standard to the 2008 Department of Environment and Conservation And Bibbulmun Track Foundation, Bibbulmun Track User Research Report
thanks in advance
