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Manhattan address algorithm

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Manhattan address algorithm

The Manhattan address algorithm is used to estimate the number of the closest cross street for a given building number on the island of Manhattan. The algorithm is given in any print telephone directory [1] as well as on numerous web pages and in New York City guide books.[2]

Algorithm

To find the approximate number of the closest cross street, divide the building number by 20 and add (or subtract) the "magic number" from the table below:
Street/Avenue Magic number
Avenue A +3
Avenue B +3
Avenue C +3
Avenue D +3
1st Ave +3
2nd Ave +3
3rd Ave +10
4th Ave +8
6th Ave -12
8th Ave +9
9th Ave +13
10th Ave +14
11th Ave +15
Amsterdam Ave +59
Audubon Ave +165
Ave of the Americas -12
Columbus Ave +59 or +60
Convent Ave +127
Edgecombe Ave +134
Ft. Washington Ave +158
Lenox Ave +110
Lexington Ave +22
Madison Ave +27
Manhattan Ave +100
Park Ave +34
Park Ave South +8
Pleasant Ave +101
St. Nicholas Ave +110
Vanderbilt Ave +42
Wadsworth Ave +173
West End Ave +59
York Ave +4

Special cases

Some streets are special cases:

Special cases
Street name Building Number Magic number
Fifth Avenue 63–108 +11
Fifth Avenue 109–200 +13
Fifth Avenue 201–400 +16
Fifth Avenue 401–600 +18
Fifth Avenue 601–775 +20
Fifth Avenue 776–1286 divide by 10 instead of 20 and subtract 18
Fifth Avenue 1300–1500 +45
Fifth Avenue Above 2000 +24
Seventh Avenue 1–1800 +12
Seventh Avenue Above 1800 +20
Broadway 1–754 no numbered streets, south of 8th street
Broadway 756–846 -29
Broadway 847–953 -25
Broadway Above 953 -31
Riverside Drive 1–567 divide by 10 instead of 20 and add 72
Riverside Drive Above 567 divide by 10 instead of 20 and add 78
Central Park West All divide by 10 instead of 20 and add 60

See also

References

  1. ^ Manhattan Address Locator
  2. ^ Frommer's New York City 2010
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