A study conducted by NuStats, a social science research firm, for NAVTEQ has revealed that the use of an in-car GPS navigation system saves the average driver about US$544 per year. The study, which tracked drivers in Munich and Dusseldorf, revealed that drivers using GPS drove 2500 kilometers less per year per driver, and dropped fuel consumption from 8.3 liters per 100 kilometers to 7.3 liters for the same distance driven. Drivers who used GPS units with real-time traffic updates drove even less during peak traffic times.
Less driving equates to a milder environmental impact as well. The average GPS-using driver emitted an average of 0.91 tons of carbon dioxide per year, 24 percent less than the average non-navigational device using driver.
