200920102018JMRI
DickBronson
BobJacobsen
jake@physics.berkeley.edu
1
2010-01-01
DB
Initial version
1.1
2011-06-24
DB
Added mapping information
1.2
2018-06-22
DB
Updated for PRR 1956
PRR 1956
Single position light high absolute signal
As described in the October 1956 version of the PRR publication "Rules for conducting transportation", Signal Rules.
Appearances for single position light signal head without other badging.
Clear
green
Page 54
../../../resources/icons/smallschematics/aspects/PRR-1956/PL-1-high-abs/rule-281.gif
Approach
yellow
Page 59
../../../resources/icons/smallschematics/aspects/PRR-1956/PL-1-high-abs/rule-285.gif
Permissive Block
lunar
Page 63
../../../resources/icons/smallschematics/aspects/PRR-1956/PL-1-high-abs/rule-289.gif
Stop
red
Page 66
../../../resources/icons/smallschematics/aspects/PRR-1956/PL-1-high-abs/rule-292.gif
Stop
Stop
Clear Block
Clear
Clear
Clear
Approach Medium
Clear
Medium Clear
Clear
Medium Approach
Clear
Approach Slow
Clear
Approach
Clear
Caution
Clear
Slow Clear
Clear
Slow Approach
Clear
Permissive Block
Approach
Restricting
Approach
Stop and Proceed
Approach
Stop
Approach