Title 49 Part 234 Appendix B Code of Federal Regulations

PART 234 APPENDIX B

Appendix B to Part 234 - Alternate Methods of Protection Under 49 CFR 234.105(c), 234.106, and 234.107(c)

49:4.1.1.1.28.8.89.1.63 : Appendix B

Appendix B to Part 234 - 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.

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

Proceed with caution - maximum speed of 15 mph

Proceed with caution - maximum speed of 15 mph.

Partial Activation*

Normal Speed

Proceed with caution - maximum speed of 15 mph

Proceed with caution - maximum speed of 15 mph.

Activation Failure**

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.