When the road is wet (there is a water layer on the road surface), the road marks become blurred and drivers are distracted. We discuss the contributing processes and identify which processes are dominant to the occurrence of this phenomenon. Modelling and a simple experiment demonstrate that the dominant processes are: (a) refraction of light by…

This article illustrates how statistical arguments can be used to influence public policy... for better or for worse. Road safety has improved in a signi?cant way since the 1970s in developed countries. If road casualties and number of killed have decreased, there are many reasons for this, including improvement in roads, building of motorways,…

The percentage of teens in high school who drink and drive has decreased by more than half since 1991, but more can be done. Nearly one million high school teens drank alcohol and got behind the wheel in 2011. Teen drivers are 3 times more likely than more experienced drivers to be in a fatal crash. Drinking any alcohol greatly increases this risk…

The Pikanii Action Team project addressed the issues of teenage drinking and drunk driving on the Blackfeet Reservation. Basing their actions on locally-generated research, the Pikanii Action Team conducted a series of activities and initiatives to promote public awareness and action related to high-risk activities related to drinking. The team's…

In the United States, an estimated 1.2 million people are living with HIV/AIDS, and approximately 50,000 new cases of HIV are diagnosed each year. Globally, it is estimated that 33.3 million people are living with HIV/AIDS. The role of mobile populations in the spread of STIs and HIV is well-documented in many countries around the world. Long-haul…

"Pregaming" or "pre-loading" is what college students call the practice of drinking alcohol in a private setting prior to attending an organized event or social activity where alcohol might or might not be served. According to one student, "Pregames are usually a fun part of the night because you're just with a few close…

Transportation is an important issue to consider when operating a program for the young. Children must be able to get to school, gym, church, or where the care is being provided, and back home. If the parent provides the ride for their own child, everything is fine. If an organization assumes responsibility for getting children to and from a…

Life continues to hold considerable risk for adolescents in the United States. In 2006, the teen death rate stood at 64 deaths per 100,000 teens (13,739 teens) (KIDS COUNT Data Center, 2009). Although it has declined by 4 percent since 2000, the rate of teen death in this country remains substantially higher than in many peer nations, based…

This article proposes an approach to teaching street crossing to students who are visually impaired that considers the risks, ambiguity, and complexity of today's intersections. Thirty or 40 years ago, street crossing was a straightforward task for travelers with visual impairments (that is, those who are blind or have low vision). The…

Motor vehicle crashes (MVCs) are the leading cause of injury and death among adolescents 16 to 19 years of age. Three areas of countermeasures for decreasing young driver risk are driver education, licensing policies, and parental management. Driver education is an essential part of teaching adolescents the rules of the road and operating a…

If risk taking is in some measure a signal to others by the person taking risks, the model of "costly signaling" predicts that the more the apparent cost of the risk to others exceeds the perceived cost of the risk to the risk taker, the more attractive that risk will be as a signal. One hundred and twelve visitors to youth…