Traffic on motorway passes Olympics site of The Beijing National Stadium (Bird's Nest), China

2008 summer olympics air quality automobiles beijing olympic stadium birds nest busy roads capital cities carbon emissions china chinese east asia eastern culture exhaust emissions far east hosting olympic games major routes olympic games passing traffic pollutants polluting environment sports venue stadiums traffic conditions traffic lanes transport transportation urban lifestyle vehicles volume of traffic capital city capitals cars daytime driving horizontal journey journeys motorways outdoors outside polluting pollution stock image stock photo stock photograph travel travel photo travel photograph travel photography travel stock travelling travels urban living urban scene vehicle travel destinations travel destination chinese culture world cultures culture national culture color image color colour tourism destination