The developing economy and convenience of traffic makes the building more and more large, and the traffic is also increasing quickly. The light pollution caused by glass curtain walls in high-rise building makes the traffic safety problems more and more serious. Enough attention should be paid towards it. A simulation software was written in order to make a graphic simulation of the sun's running status, analysis of various types of architectural glass curtain wall and building orientation on light pollution regional distribution effect. It's summed up that the use of decumbent form glass curtain wall can be effective in controlling light pollution area size and can reduce the glare range by properly reversing buildings, in order to avoid light pollution's influence on traffic safety.
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