Processing traffic data for statistical use : the Norwegian methods.

This paper considers traffic data in Norway. The first chapter presents how data are collected as a background for the following chapters. Chapter 2 gives a short overview of the system that processes and stores traffic data. The main focus of this paper is the methods that are used in the traffic data system. The basic curve method is a method to estimate yearly traffic volume at a count site, when traffic counts are available for only a limited period, from a few days up to a week. Another method that is to be described is how the traffic growth is calculated. (Author/publisher)