Abstract：The city's three dimensional greening is an effective measure for increasing the ratio of greenbelt and keeping the balance of ecosystem.The three dimensional greening of multi-level crossing bridge will(become) one of the most significant ways for the achievement of that aim in Chaoyang District.By analyzing the deficiencies and advances based on the existing instances,the paper classified the multi-level crossing bridge into three patterns: the types of pontine wall,piles and slope,and put forward a corresponding corrected plant disposition patterns for existing Guangming Bridge.
2006, Vol. 4 
