1997 - USA - Variability in Traffic Monitoring Data: Final Summary Report

This report summarizes results of a two year empirical research effort, which was sponsored by the Federal Highway Administration, (i) to study and characterize the variability in the traffic data (volume, classification, and weight) from the continuously monitored road segments, and (ii) to study the extent to which this variability is transferred to, and affects the precision of the data produced from the road segments which are monitored only one or two days each year.