A new study finds that driving above posted speed limits is common and does not reliably shorten trips. Across the trips examined, more than 43% include at least one instance of speeding. The research also finds that drivers spend close to 12% of their overall driving time traveling faster than the speed limit. While the reporting notes that drivers may speed to make up time—such as when commuting to work, picking up children from school, or running errands—collectively the findings suggest that the time gained from speeding is limited. Instead, speeding is associated with increased costs and additional emissions, according to the coverage. Across outlets, the central conclusions are that speeding occurs frequently in everyday driving and represents a meaningful share of total time on the road, while providing little overall time savings. The study’s results are presented as evidence that adherence to speed limits can reduce unnecessary expense and environmental impact without significantly extending trip times.