Bump (road traffic)
As a bump in is road unevenness in the road called. In most cases, gently rising and falling elevations are meant based on the shape of a water wave.
root cause
According to studies, including those published in Physical Review Letters , bumps on roads develop from a tiny elevation, which over time becomes more and more pronounced as vehicles drive over it and then spreads over the entire street.
Every wheel that travels over a tiny bump is lifted slightly and then falls slightly, so that the unevenness increases. The experiments of the study showed that as soon as a bump could develop, others always follow very quickly, regardless of the road material used .
The influence of vehicle speed on the development of bumps was also examined. According to this, a speed limit only delays further road destruction, since the physical effect already occurs above a speed of 8 km / h.
See also
- Washboard runway
- Traffic calming with artificial bumps