Analysis of Effects of Signal Control on Traffic Noise

The noise emission levels and acceleration adjustments of three-type single vehicle at a reference distance are measured respectively.Then,based on the microscopic traffic flow simulation,vehicle noise emission levels and the noise propagation model,the dynamic traffic noises of the continuous traffic flow without signal control and the discontinuous traffic flow with signal control are simulated respectively.Finally,the equivalent sound levels,standard deviations,traffic noise indexes and frequency distributions under the two different traffic flow conditions are compared and analyzed.Several important differences in traffic noise under the two different traffic flow conditions are obtained.