clearance...
every member of my crew and in my office(clerical duties excluded) is a virginia certified flagman for traffic control. if we do a road job we begin by gaining a dept. of transportation permit to do the work, then we rent the signs, traffic paddels,and cones from a company here which provides that service. the number of signs, types of signs and number of cones are determined by the number of lanes on the adjacent road and the speed limit. every flagman and foreman on the crew has a radio for communication. traffic is stopped far from the felling or pruning radius of the work then chipped. when it is safe we let traffic pass, then stop it again for more work, etc. this is the safest, and legal way.
im glad you came here for help, road jobs are expensive top set up, but if you are going to offer them as a service you need to do it the safest way.