CONCENTRATION DISTRIBUTION OF THE EXHAUST GAS NEAR A ROADWAY WITH A STOCHASTIC TRAFFIC FLOW

摘要

The mechanical process of transfer and dispersion of the exhaust gas near a motor road has been studied based on the hypothesis of a stochastic traffic flow on the considered roadway section, which is described by a Poisson process with a constant intensity. Using the three-dimensional diffusion equation, solutions have been obtained for problems on the concentration distribution of pollutants near an extended roadway and a road crossing. Basic stochastic characteristics of the concentration distribution of the exhaust gas from a stochastic traffic flow have been determined. Calculated results have been compared with experimental data.