Traffic Control Companion, for the Shoulder of the Road

Field notes

The proposed workflow starts with a map-drawn work area and uses road attributes such as posted speed, lane count, and bearing to place traffic-control devices. The page gives a concrete example for a 65 mph, three-lane road: a 780-foot merge taper, 525-foot buffer, and signs extending to 2,640 feet. It also describes state supplements, eight closure types, on-device plan storage, and PDF export, while noting that a qualified person must review each plan.