Originally Posted by
staehpj1
There is some interesting info in this video about using them in Oklahoma. They claim some impressive numbers in reduced accidents and deaths.
https://vimeo.com/226750369
A google search for "Centerline rumble strips" will show programs in may states.
A sometimes less aggressive version is raised profile lane markings. These can look like not much more than really thick paint. They accomplish the same thing while being a bit quieter and less aggressive.
Those reflective cat eyes can somewhat accomplish the same thing depending on their spacing.
yes, I remember those in England and maybe in France. They are very effective at night, and I suspect its just not at all practical to have them in climates with snow, as plows would just rip them off regularly.
But yes, I do recall the little "bump" sound if you drift onto them.