A temporary diversion has been constructed on a highway of 4 percent grade due to major repairs that are being undertaken on a bridge The maximum speed allowed on the diversion is 20 mi h Determine the minimum distance from the diversion that a road sign should be ocated informing drivers of the temporary change on the highway Assume that a driver can read a road sign within his or her area of vision at a distance of 30 ft for each inch of letter height speed limit on highway 65 mi h letter height of road sign 8 in perception reaction time 2 5 sec