Speeding in your car to work, to pick up your children from school, or go from one errand to the next not only wastes money in gas and sends
University of Minnesota researchers analyzed 120 million vehicle trips across the United States from four Wednesdays in 2021 using driving data on national road networks, speed limits and U.S. Geological Survey elevation data. The analysis included roads with speed limits of 45 mph (72 kph) and higher. More than 43% of the studied trips included at least one instance of speeding, and drivers spent nearly 12% of their driving time going faster than the speed limit. They found that if drivers of light-duty, conventional internal combustion engine vehicles actually drove at posted speed limits, it could save an average of $22 million, based on fuel costs at the time, 6.7 million gallons of fuel and 57,000 metric tonnes of carbon dioxide every day. The researchers said that is comparable to taking about 5.5 million passenger vehicles off the road. And while drivers say that speeding saves them precious time, researchers found that is not really the case. With an average daily driving distance of 28.6 miles (46.03 kilometers), driving at or below the posted limit corresponds only to about 54 seconds longer per day.
