From For Construction Pros……

UPS says that in 2007 it saved itself 3 million gallons of gas by routing trucks using a technology that emphasizes safety and efficiency — meaning delivery routes are planned as a series of loops with as few left turns as possible. UPS says it’s a safer driving practice because drivers aren’t turning in front of oncoming traffic as often, and it saves fuel because they spend less time idling in left-turn lanes waiting to turn.