1, outside the gallery, inside the courtyard and the Master roofing, etc. are generally traffic and evacuation routes, a higher concentration of flow, especially in emergency situations prone to congestion, so the overhead should be the height of railings security. According to China's national standards GB100000-88 "Chinese adult body size" data converted into a state of straight men, the focus of a high degree are 1006.80mm, shoes center of gravity height of the post-1006.80mm +20 mm = 1026.80mm, on the railings of the Minimum Safe Altitude identified as 1.05m.
2, for high-level, high-rise residential, and because of the high overhead looking down at people when they have a fear, caused by insecurity, there is an appropriate increase in the height of railings will increase people's sense of security in mind, it more than low-rise, high-rise residential requirements improve the 0.05m, neither should be lower than 1.10m. Calculated on the railing of the beginning parts of the railings should be riding the lower part of the site date to have a high degree of safety.

3, at ten-storey high-rise apartment above suffered wind than low-rise, multi-storey residential to large. From the survey, the cold and winter because of cold climate regions, many snowstorms, verandah-type high-rise residential are made outside the gallery closed (there is the external walls of the wall with the window or all windows closed choose Gallery); for Comparison of a special city, such as Shanghai. Due to the winter cold, more wind and rain, the city design standards also closed outside the gallery. Provisions of the relevant documents at high-rise apartment in the main channel for the outer gallery are advised to do outside the gallery closed.