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In Chicago, a typical city block is 330 by 660 feet (100 m × 200 m), [2] meaning that 16 east-west blocks or 8 north-south blocks measure one mile, which has been adopted by other US cities. In much of the United States and Canada, the addresses follow a block and lot number system , in which each block of a street is allotted 100 building ...
Taxicab geometry or Manhattan geometry is geometry where the familiar Euclidean distance is ignored, and the distance between two points is instead defined to be the sum of the absolute differences of their respective Cartesian coordinates, a distance function (or metric) called the taxicab distance, Manhattan distance, or city block distance.
In most US cities, a city block is between 1 ⁄ 16 and 1 ⁄ 8 mi (100 and 200 m). In Manhattan, the measurement "block" usually refers to a north–south block, which is 1 ⁄ 20 mi (80 m). Sometimes people living in places (like Manhattan) with a regularly spaced street grid will speak of long blocks and short blocks.
A vara (meaning "rod" or "pole", abbreviation: var) is an old Spanish unit of length. Varas are a surveying unit that appear in many deeds in the southern United States due to the land previously being part of Mexico, and becoming part of the United States under the Treaty of Guadalupe Hidalgo. Varas were also used in many parts of Latin ...
a very large block measuring 113 by 113 m (371 by 371 ft), far larger than the old city blocks and larger than any Roman, Greek blocks and their mutations (see drawing below); a 20 m (66 ft) road width (right of way) compared with mostly 3 m in the old city;
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In this address, Tokyo is the prefecture; Chiyoda-ku is one of the special wards; Marunouchi 2-Chome is the name of the city district; and 7-2 is the city block and building number. In practice [ 6 ] it is common for the chōme to be prefixed, as in Japanese, resulting in the somewhat shorter: