合理的日照间距不仅保证住户获得良好的日照、通风、卫生等居住条件,而且能使住宅建设用地发挥最大的经济效益,从而达到节约用地的目的。这对于新区开发的意义是显而易见的,对旧区改造则意义更大,从而为城市旧区改造的可行性提供了重要的依据。 A reasonable spacing of sunlight not only ensures that residents get good living conditions such as sunshine, ventilation, and hygiene, but also enables residential construction land to maximize its economic benefits, thus achieving the purpose of saving land. This is of obvious significance to the development of the new district and is of greater significance to the renovation of the old district, thus providing an important basis for the feasibility of urban old district reconstruction.