There are more than three million of these safety devices, called raised pavement markers (RPMs), in service on Georgia highways. They are installed and then need to be replaced about every two years ...
It wasn't that long ago, especially in the Midwest, that rare was the highway that relied on raised pavement markers to improve safety. But as research showed the impact raised markers can have on ...
Engineers are placing low-powered sensors in the reflective raised pavement markers that are already used to help drivers identify lanes. Microchips inside the markers transmit information to passing ...