"Street-politics" Brings Inspiration for China;

Since the 1990s,the "color revolution" broke out successively in Georgia,Ukraine,and Kyrgyzstan under the influence of the United States to expand its hegemony to Asia-Europe strategic space in terms of "promoting democracy" and "street politics" and consequently,they established "pro-US governments".

Walk Through or Stay: Conception Transform from Street to Region——An Introduction of the Planning of Xingfu Pedestrian Street in Huai an City;

This paper studies modern application of the traditional street,lane and courtyard,which bring new vitality to tradition and impart fresh life to modern city.

Author puts forward concert of "wall" and "street" from producing of chain ancient city, analyzes substance and culture configuration in china ancient city, summarizes vitality embodied "wall" and "street" in city, it will help people use element of "wall" and "street" in process city plan.

A total of 38 samples of street dusts collected from Baoji were analyzed by the Atomic Fluorescence Spectrophotometer(AFS) to study the contents and the spatial distributions of arsenic and mercury of street dusts of Baoji,and compared with the contents of Chinese Soil Element Background Value(CSEBV) and the contents of arsenic and mercury of other cities.

The main features and dispersion models of traffic air pollution in urban street canyons are generally reviewed.

The pollution status of Carbon Monoxide(CO) in street canyon and its horizontal and vertical distribution of concentrations have been discussed in the paper.