MEASUREMENT ANALYSIS AND MODEL CALCULATION OF THE TRAFFIC NOISE NEAR ROAD INTERSECTIONS

The measured results and statistical analysis of traffic noise near the road intersections with traffic control signals are presented. It was found that the traffic noise near intersections is 3—7 dB（A） higher than the noise of freely flowing road traffic in statistical noise levels L₅₀ and L₉₀, but no signigicant difference in L₁₀ and equivalent continuous noise level Leq was found.
The reason of higher L₅₀ near intersections is considered to be due to the total noise energy by the moving traffic in the crossing road, after comparing the measured value of L₅₀ with the calculated result based on the simple source model of road intersections.
The traffic noise level was not found to vary with traffic signals.