New York Codes, Rules and Regulations
Title 17 - DEPARTMENT OF TRANSPORTATION
Chapter V - New York State Supplement To The National Manual On Uniform Traffic Control Devices For Streets And Highways-2009 Edition
Part 2 - Signs
Chapter 2C - Warning Signs And Object Markers
Section 2C.26 - DEAD END/NO OUTLET Signs (W14-1, W14-1a, W14-2, W14-2a)

INSERT the following paragraphs:

Guidance:

06A One W14-1 sign placed near the beginning of the dead end portion of the street is generally sufficient for short dead end streets in residential areas and where traffic speeds are low.

Option:

06B On long dead end roads, one or more additional W14-1 signs may be placed before the end of the road.