A METHOD FOR CALCULATING AN ENVIRONMENTAL CAPACITY TO MEET THE JAPANESE ENVIRONMENTAL QUALITY STANDARD FOR NOISE ANNOYANCE NEAR TRUNK ROADS

Abstract

The environmental impact of traffic flows is serious problem in urban area. Speaking of road traffic noise in Kitakyusyu, only 11 per cent of observation points near trunk roads are less than the Japanese environmental quality standard in the daytime. Therefore in this paper, a method for calculating an environmental capacity to meet the Japanese environmental qualitystandards for noise annoyance is proposed. It is necessary to assign the traffic to the road network to meet the standard. And the results of an application of the method are also presented using the typical section of two-lane road.