[This is the result of work by me (Robert Davies), Robert Henderson and Peter Cenek. Any comments should go to me. It was partially supported by the New Zealand Road Safety Trust]
Main report - doc format (1.3 MB, updated 22 March 2011)
Main report - pdf format (381 KB)
I have stored the regression coefficients in spreadsheets rather than including them in the report:
Coefficients for all crashes model (52 KB)
Coefficients for wet crashes model (52 KB)
For some additional material see here. (You will need usercode cr and password crx).