I have lived in Bangkok for 3 years and seen two fatal motorcycle accidents right in front of my condo. Neither person was wearing a helmet and brain matter was scattered all over the road. However, these accidents are not due to poor road conditions, driving like idiots is the number one cause. Motorcycle riders think they own the road (and the footpath mind you) and think everyone else is in "their" way. What's even worse is they ride on the footpath right in front of the police station next door to me and nothing is done about that either. So serves them right, nature has its way of weeding out the genetically unfit species.