Delaware Administrative Code
Title 2 - Transportation
2000 - Department of Transportation
2400 - Division of Transportation Solutions
2402 - Manual on Uniform Traffic Control Devices (MUTCD)
Part 4 - Highway Traffic Signals
Chapter 4H - TRAFFIC CONTROL SIGNALS FOR ONE-LANE, TWO-WAY FACILITIES
Section 4H.03 - Operation of Traffic Control Signals for One-Lane, Two-Way Facilities

01 Traffic control signals at one-lane, two-way facilities shall operate in a manner consistent with traffic requirements.

02 When in the flashing mode, the signal indications shall flash red.

Guidance:

03 Adequate time should be provided to allow traffic to clear the narrow facility before opposing traffic is allowed to move. Engineering judgment should be used to determine the proper timing for the signal.