The Post Office Department now requires before establishment of a free delivery service that a town provide itself with street names, street signs, and house numbers. This is done to facilitate the work of the letter carriers, for in order to make a distribution of mail the letter carriers must while still at the office arrange their mail in the order in which their patrons reside on their routes. Grocery delivery routes are made up in the same way. It is, therefore, necessary that there be no duplication of names and that houses be numbered in some logical sequence and that streets be named in some order that their location may be at once determined.
In the matter of house numbering, a centesimal system is generally recognized as being the best, as the numbers are then not only in sequence but they change from 100 to 200 and 200 to 300, etc., at every block corner or at least at certain designated streets. In order to carry out a numbering system there must be some starting point or base line.
The most simple way of doing this would be to select the north or south City Limits line for the base line to start the numbering system for north and south streets and the east or west City Limits line as the base line for starting the numbering on east and west streets. The use of the City Limits line for base lines, however, can only be used when there is no possibility of an extension of the City Limits in that direction, otherwise, in time the house numbering system would have to be revised to a new base line, but this is the simplest system because in designating a given location you would simply say, "2624 Western Avenue," without any prefixes or suffixes to indicate any particular part of the town. One of the objections to this system is that if the business center was about the center of the area then the numbers are high in the business district, but this is probably only a notion and there is no basic objection to this.