"Preface Both Ian Johnston and Eric Howard have spent lengthy careers in the traffic safety field attempting to translate knowledge gained from traffic safety research findings and hard-won frontline experience into policy and practice, and have long been battling to understand why traffic safety progress lags so far behind what scientific knowledge demonstrates is achievable. The motivation for this book was a desire to make sense of our experiences and frustrations and to set out our conclusions in thehope that we may catalyse a community demand for transformational change, and that we may guide and motivate the future efforts of the myriad others working in the field. Many, if not most, Western motorised nations regularly celebrate their ongoing improvements in traffic safety road crash fatality rates per million kilometres driven and per head of population are indeed at historic lows. Sadly, though, the Western focus is invariably on the incremental gains made, and no