MEASUREMENT,ANALYSIS AND MODEL CALCULATION OF TRAFFIC NOISE NEAR THE BOAD INTERSECTIONS

Measured results and statistical analyses of traffic noise near the road intersections with traffic controlsignals are presented.It was found that the traffic noise near intersections is 3 to 7 dB(A)higher than the noiseof freely flowing road traffic in statistical noise levels L_(50) and L_(90),but no signifcant difference in L_(10) andequivalent continuous noise level L_(eq). The reason of higher L_(50) near intersections is considered to be due to the contribution to the total noiseenergy by the moving traffic in the crossing road,after comparing the neasured value of L_(50) with thecalculated result based on a simple source model of road intersections. The traffic noise level was not found to vary with the traffic signals.