Onstar Navigation People Directions Car Distances System Driving

Many Americans have "navigation systems" (machines that tell one where one is and where one needs to go) in their cars. The driver can "enter" (type in) his or her "destination" (the place one wants to go) into the navigation system. Then the navigation system gives specific "driving directions" (detailed instructions of where to go) for how to get there. Many navigation systems have color maps that "update" (display new information) as the car moves.

These navigation system use the "global positioning system" ("GPS"), which is a technology that lets people know where they are by using a small electronic device. Many "backpackers" (people who walk long distances for many days in the mountains) were the first people to use GPS, but today it is more common and is often used in cars.

One popular navigation system is OnStar. OnStar can provide driving directions for almost any U.S. destination. OnStar can also be used in emergencies. For example, if the driver has a problem, he or she can push a button and OnStar will "automatically" (without the person having to do anything) communicate with an OnStar representative. Newer cars with OnStar will automatically send a message if the car is in a "collision" (when a car hits another car or object).

People who don't own expensive cars with OnStar have to find other ways to navigate in unfamiliar areas. Some of these people use their "personal digital assistants" ("PDAs"; small computers that can be held in one's hand) to display driving directions. Other people use online mapping services like MapQuest.com and Maps.Yahoo.com to print out driving directions before their trip.