Please do not replace spelled out names by abbreviations. Abbreviating something is easy for a data consumer to do; while correctly resolving abbreviations is not.  These types of "fixes" are a step backwards.

Quoting directly from the wiki: "If the name can be spelled without an abbreviation, then don't abbreviate it. Computers can easily shorten words, but not the other way (St. could be Street or Saint)."

See here for more details:
https://wiki.openstreetmap.org/wiki/Names
https://wiki.openstreetmap.org/wiki/Abbreviations