Road safety activists and some states are pushing to depart from a longstanding rule that sets speed limits in the United States based largely on how fast drivers actually travel.
Yes, but they’re much more intensive to install and maintain, and they also don’t work well against things like trucks with wide wheel bases and high undercarriages.
Yes, but they’re much more intensive to install and maintain, and they also don’t work well against things like trucks with wide wheel bases and high undercarriages.