PDFWAC 468-95-136

Advance traffic control signs (W3-1, W3-2, W3-3, W3-4).

Add the following Option, Guidance, and Standard at the end of MUTCD Section 2C.36:
A ramp meter ahead (W3-7) sign (see Figure 2C-6) may be used to warn road users that a freeway entrance ramp is metered and that they will encounter a ramp control signal (see Chapter 4I).
When ramp control signals are operated only during certain periods of the day, a ramp metered when flashing (W3-8) sign (see Figure 2C-6) should be installed near the entrance to the ramp in advance of the ramp control signal, or on the arterial on the approach to the ramp, to alert road users to the presence and operation of ramp meters.
The ramp metered when flashing sign shall be supplemented with a warning beacon (see Section 4L.03) that flashes when the ramp control signal is in operation.
[Statutory Authority: RCW 47.36.030. WSR 11-23-101, § 468-95-136, filed 11/18/11, effective 12/19/11.]