This standard establis es the procedure to carry out studies of origin and destination of the external cordon to a populated area or is lated place through direct interviews with drivers on the highway. This standard is valid for agencies that carry out road and transportation planning studies in urban and rural areas.
NC 18-68-1987 history
1987NC 18-68-1987 Passengers and Goods Transportation. Urban Transportation. Procedure for Origin and Destination Study in the Suburbs