Here's another question about signage

Hey everybody I was going by. The CP/Amtrak tracks in Tosa today and they were doing some tree work along the tracks. I think it’s for MMSD but anyway. I saw a sign it only stood about 4 to 5 feet off the ground if that it was a yellow sign with a red stripe though it now I’m thinkin it is tellin train crews to watch out for crews workin around the tracks but then again. I could be tottally wrong about this but then again I maybe just right for a change. If anybody knows what this means can you please pass this info onto me and. Thanks [%-)][%-)][:D][:D]

Yellow red flag protects men and equipment.
From the GCOR…
5.4.3 Display of Yellow-Red Flag
A. Restriction Specified in Writing
Two Miles Ahead of Restricted Area. Yellow-red flags warn a train to be prepared to stop because of men or equipment. To make sure the train is prepared to Stop at the right location, employees must display a yellow-red flag 2 miles before the restricted area.

Less Than Two Miles Ahead of Restricted Area. When the restricted area is close to a terminal, junction, or another area, employees will display the yellow-red flag less than 2 miles before the restricted area. This information will also be included in the track bulletin, track warrant, or general order.

B. Restriction Is Not Specified in Writing
When a yellow-red flag is displayed and the restriction is not specified by a track bulletin, track warrant, or general order, crew members must be prepared to stop short of a red flag 2 miles beyond the yellow-red flag. If a red flag is displayed, proceed as outlined in Rule 5.4.7 (Display of Red Flag or Red Light). If no red flag is displayed:

Move at restricted speed.
Increase speed only after:
a. A crew member has received permission from the employee in charge.
b. The rear of the train has passed a green flag.
or
c. The rear of the train has traveled 4 miles beyond the yellow-red flag, and the train dispatcher has verified that no track bulletin or track warrant protecting men or equipment is in effect at that locafion.
5.4.4 Authorized Protection by Yellow or Yellow-Red Flag
On subdivisions where maximum speed does not exceed 40 MPH, and it is authorized by special instructions, yellow or yellow-red flags may be displayed without the use of track bulletins, track warrants, or flagmen. Yellow or yellow-red flags must be displayed 2 miles before the restricted area. Protection will begin at a point 2 miles beyond the yellow or yellow-