Abstract
This paper describes a continuous estimation method of capacity on a basic motorway section, which authors developed, and examination of the validity of the estimate. Until now, capacity observations were mainly carried out using video cameras at the fixed points and vehicle detectors installed in lanes of a motorway section. In this paper, a new observation method, which complemented the demerit of these conventional observation methods, was developed. Then, the capacity was estimated from the data that obtained the running car experiment on an actual motorway, and the validity of the estimate by this technique was examined. The estimates have enough accuracy in practical use of motorway management and constructing countermeasure plans for traffic congestion.
