NS Signal Names Flashcards
1
Q
Green over red over red
A
Clear
2
Q
Green over red
A
clear
3
Q
green
A
clear
4
Q
green over dark
A
clear
4
Q
yellow over flashing green over red
A
approach limited
5
Q
yellow over flashing green
A
approach limited
6
Q
red over flashing green over red
A
limited clear
7
Q
red over flashing green
A
limited clear
8
Q
yellow over green over red
A
approach medium
9
Q
yellow over green
A
approach medium
10
Q
flashing yellow over red over red
A
advance approach
11
Q
flashing yellow over red
A
advance approach
12
Q
flashing yellow
A
advance approach
13
Q
red over green over red
A
medium clear
14
Q
red over green
A
medium clear
