Peter Tripoli, Forrestfield, WA

I couldnít agree more with the absolute stupidity of reducing speed limits to 30 km/h (Editorís Letter, March) Ė at those speeds motor vehicles would actually hold me up when Iím riding my pushbike.

The increase in road deaths in most states should really be no mystery at all. Itís quite simple: the massive increase of SUVs on our roads.