If you work, have children, or like to socialize, you probably cannot avoid being out of the house during dark hours. It may be a regular occurrence that leads you to experience transportation at night or a rare evening away but regardless, if you drive, ride a bicycle, or walk when it is dark, you should realize that your safety is at a greater risk than it is during the day.
The reasons that night driving is associated with increased risk of car accidents are myriad and complex and include the fact that many people who drink and drive do so in the overnight hours. While some people drink during the daytime, it is much more common for people to drink later and to act in a negligent manner after drinking. This leads to thousands of drunk driving accidents every year in Arizona.
Most people have decreased vision at night when compared to their daytime vision which means that they have less ability to notice road hazards and changing traffic conditions. Further, if people cannot see as far in front of them at night, they will have less time to slow or stop their car if a problem does arise.