blocking back and bell codes Flashcards
(7 cards)
1
Q
W=WWWATSOTLITTPWTCP
A
Work which will affect the safety of the line is to take place within the clearing point.
2
Q
O= OOGM
A
Out of gauge movements.
3
Q
blocking back and bell codes
W= WMBFATPOWTWMTLU
A
Worksite marker board for a T3 possession or work that will make the line unsafe.
4
Q
blocking back and bell codes
M= MTWBSOTRL
A
Movement that will be stopped on the running line.
5
Q
blocking back and bell codes
A= AOO
A
Any other obstruction.
6
Q
blocking back and bell codes
Blocking back inside home signal
A
2-4
7
Q
blocking back and bell codes
Blocking back outside home signal
A
3-3
