GPS devices certainly make for more convenient driving, but now a study by the Virginia Tech Transportation Institute found that they also have a positive effect on driver safety.
It found that 72 percent of drivers feel less stressed when using a GPS device and 59 percent said using a navigation device helped keep them focused on the road. Naturally, the study is being brandished by GPS manufacturers such as TomTom.
These conclusions seem like common sense: When you're not looking for street signs or highway markers, you can focus your attention solely on the immediate driving environment. Less distractions on the road always equal safer driving and perhaps that outweighs glancing down at a GPS unit from time to time.
Do you own a portable navigation device? Do you think this makes you a safer or more relaxed driver?