Patent ID: 8048204
Filing Date: 2011-11-01
Classification: E01C

Abstract:
1. A method of mixing polluted air with less polluted air to provide moderately polluted air, the polluted air comprising at least one roadway pollutant in at least one concentration moving from a roadway region proximal to a roadway toward a leeward region substantially above a leeward area, the less polluted air comprising said at least one roadway pollutant in at least one lower concentration located distal to the roadway, and the moderately polluted air comprising said at least one roadway pollutant at a reduced concentration disposed proximal to the leeward area, the method comprising: (a) providing an outer wall spaced apart from the roadway; (b) providing an inner wall disposed between the roadway and the outer wall, the inner wall comprising: (c) directing said first part of said polluted air through the first channel such that said first part is directed upwardly thereby to mix with said less polluted air for providing said moderately polluted air proximal to the leeward area.