physical barrier usually made of concrete, metal, or other sturdy material positioned across a road to block traffic may have a gate or other opening for access may have warning signs or lights may have security personnel present
roadblock which has physical barrier roadblock which has usually made of concrete, metal, or other sturdy material roadblock which has positioned across a road to block traffic roadblock which may have a gate or other opening for access roadblock which may have warning signs or lights roadblock which may have security personnel present