Signals and Signs

Diagonal warning boards are warnings of speeds coming up in 2 miles

G
R  = clear
R

Y
G* = approach limited - pass next signal at less than 60mph
R

Y
G  = advanced approach - pass next signal at less than 50mph
R

Y  Y*
Y  R = approach medium = pass next signal at 40mph or less
R  R

Y
R = approach - next signal is stop - reduce to 30mph (40 for Amtrak and commuter trains)
R

Y  Y
L  R* = appoach restricting - next signal is restricted speed
R  R

R   L  R R R* R  R
R      L R R  R* R = restricted speed
R        L R  R  R
NB

R R R
R R   = stop
R

Medium aspects don't mean the same thing as other signalling sysem. An aspect moved down one position means a diverge.

R
G = diverging clear - maintain prescribed speed through turnout
R


R
Y* = diverging approach medium -  diverge and then pass next signal speed below 35phm
R

R
Y = diverging approach - diverge then next signal at stop
R 

R
Y = diverging approach - diverge then another dirverge
Y