MUTCD PART 2 - Chapter 2C
Warning Signs and Object Markers view pdf | view table 2C.2 
  Quick Reference: Sign Sizes for Roadway Type view chart
Ramp Meter Ahead Warning Signs
Ramp Meter Ahead Warning Signs give motorists advanced notice of a ramp meter ahead.
	
		- 
			PRODUCT ID: S(XXXX)W37(X)A
- Size (XXXX):
 (3636) 36" x 36" for use on Single Lane/Multi-Lane Roads
- 
			Reflective Sheeting (X):
 (H) High Intensity Prismatic
 (3) DG3 Diamond Grade
 (3)A(Y) Fluorescent DG3 Diamond Grade
- 
			Substrate: .080" Aluminum
- 
			MUTCD Sign Designation: W3-7