This second edition of Helmets: a road safety manual for decision-makers and practitioners
has updated the evidence on risk factors and interventions for helmet use. The manual is …

Motorcycle crashes increasingly become a high proportion of the overall motorized vehicle
fatalities. However, limited research has been conducted to compare the injury severity of …

Motorcycle and in general motorized 2–3 wheelers accidents are a major concern of road
safety worldwide representing about 28% of the overall fatalities. Speed is a central factor in …

Hanoi City is a typical motorcycle dominant city in Vietnam with a modal share of
motorcycles of more than 80% and motorcycle riders involved in more than 70% of road …

As crash speed increases, so does the probability of injury. The vulnerability of different road
users varies greatly, in part due to differences in their protective equipment. Therefore, for …

Not wearing a helmet, not properly strapping the helmet on, or wearing a substandard
helmet increases the risk of fatalities and injuries in motorcycle crashes. This research …

Like many countries in sub‐Saharan Africa, Ghana has witnessed an increase in the use of
motorcycles for both commercial transport and private transport of people and goods. The …

Regular speeders are those who commit speeding recidivism during a period. Among their
speeding behaviors, some occurring in specific scenarios may cause more hazards to road …

Partial taxi speeders are observed with both high speeding frequency and severity (range).
They thereby can be viewed as aggressive speeders whose behaviors may result in more …

The estimation of the effect of contributors to crash injury severity and the prediction of crash
injury severity outcomes suffer often from biases related to missing data in crash datasets …