As seen in this image of Palm Beach County, Florida, the amount of pavement (public infrastructure) per building (private structure) is extremely high, especially when compared to the efficiency of a section of an older city like Washington, D.C.

• 正如我们在佛罗里达的棕榈海滩县所看到的那样,那里与华盛顿特区旧城的一个街区的效率相比，连通私人住宅的路面(公共基础建设)铺设率是相当高的。