definition
strict definition
alternate numbering
House numbering in which odd numbers progress up one side of the street and even numbers on the other.
Alternate numbering refers to a house numbering system in which odd numbers increase linearly up one side of a street, while even numbers progress up the other side. The two sides are generally parallel, but do not need to start at proximate numbers (one side may start at 1 while the other starts at 40). Likewise, the two sides may progress symmetrically, but it often occurs that numbers on one side increase faster than on the other side.
A typical alternate numbering system looks like this:
1 3 5 7 9 11 13 15...
2 4 6 8 10 12 14 16...
Related definitions
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block-focused numbering
A house-numbering system in which numbers relate to identified blocks or land parcels rather than streets. -
circuital numbering
House numbering in which a single sequence progresses up one side of a street and reverses itself on the other side. -
linear numbering
House numbering which proceeds up a street in one direction without alternating between sides. -
non-geographic numbering
A house-numbering system whose numerical order does not follow the geographic order of properties.