28

Germany is an interesting case to study this, as they have stretches of highway with and without speed limits. In a study done in the state of Brandenburg, the effect of putting a speed limit on stretches of highway has been studied by comparing the accident statistics before and after the new limit. On two stretches the speed limit was changed from no limit ...


8

Generally, every car has a specific speed where fuel efficiency (i.e. miles traveled per gallon) is highest. This is mostly around 40 - 60mph (~65 - 95 km/h). Above and below this speed fuel efficiency decreases. So if you travel the same distance, you will use more fuel and therefore produce more pollution. In this paper the authors use a pretty ...


2

Those are number from work done by the IIHS in the US, this is an interesting read about speed limits in general and not just safety: Fatalities also went up. Deaths on rural interstates increased 25-30 percent when states began increasing speed limits from 55 to 65 mph in 1987 (Baum et al., 1991; Baum et al., 1989; Baum et al., 1990). In 1989, about two-...


Only top voted, non community-wiki answers of a minimum length are eligible