Or more likely, fractional miles. In Chicago, a standard city block is 1/8 of a mile by 1/16 of a mile (usually the longer dimension is considered a "block" for

Or more likely, fractional miles. In Chicago, a standard city block is 1/8 of a mile by 1/16 of a mile (usually the longer dimension is considered a "block" for describing distances since it corresponds to the grid's "hunnerts" for addresses¹, something which confuses my wife to no end, especially when a 3-block walk may cover more or less than 3 physical blocks). --- 1. There are a few areas where the hunnerts don't correspond to 1/8 mile blocks: The first mile from Madison to Roosevelt goes from 0 to 1200. Then from 16th to 22nd (Cermak) there are some missing hunnerts and again one missing hunnert between 26th and 31st. Some of these are a consequence of the replatting of the city at the beginning of the twentieth century and some of it, who knows?