Alternate Methods of Protection Under 49 CFR 234.105( c ), 234.106, and 234.107( c )

[This is a summary—see body of text for complete requirements] Flagger for each direction of traffic Police officer present Flagger present, but not one for each direction of traffic No flagger/no police False Activation Normal Speed Normal Speed Proceed with caution—maximum speed of 15 mph Proceed with caution—maximum speed of 15 mph. Partial Activation* Normal Speed Normal Speed Proceed with caution—maximum speed of 15 mph Proceed with caution—maximum speed of 15 mph. Activation Failure** Normal Speed Normal Speed Proceed with caution—maximum speed of 15 mph Stop: Crewmember flag traffic and reboard. *Partial activation—full warning not given. Non-gated crossing with one pair of lights designed to flash alternatively, one light does not work (and back-lights from other side not visible). Gated crossing—gate arm not horizontal; or any portion of a gate arm is missing if that portion had held a gate arm flashing light. **Activitation failure includes—if more than 50% of the flashing lights on any approach lane not functioning; or if an approach lane has two or more pairs of flashing lights, there is not at least one pair operating as intended.