County routes in Wayne County, New York, are only posted on street blade signs.
Each route number is the product of two different numbering systems, both county-wide in nature.
The last two digits of the route number serve as a road's base designation and are assigned sequentially from the Monroe County line in the west to the Cayuga County line in the east and from the Lake Ontario shoreline in the north to the Ontario and Seneca county lines in the south.
If a road crosses either of those highways, the first digit of the route's number changes to reflect the road's location in the latter numbering grid.
Routes ending in an even number run from north to south; routes with an odd designation travel from east to west.