Wayside Signal Aspect & Indication Apptitude Test - Conrail
Let’s review a few of the basic rules we need to learn concerning wayside signals:
1. The name of the signal indication is read from the top position down.
2. A Green or Yellow color in the top position gives the basic indication (Clear or
Approach).
3. A Green or Yellow color in the middle position indicates Medium Speed.
4. A Flashing Green or Yellow color in the middle position indicates Limited Speed.
5. A Green in the bottom position indicates Slow Speed.
6. Red contributes nothing to the name unless ALL aspects are red. Remember, “If it’s
not all Red then it’s not Read at all.”
Let’s review a few of the basic rules we need to learn concerning wayside signals:
1. The name of the signal indication is read from the top position down.
2. A Green or Yellow color in the top position gives the basic indication (Clear or
Approach).
3. A Green or Yellow color in the middle position indicates Medium Speed.
4. A Flashing Green or Yellow color in the middle position indicates Limited Speed.
5. A Green in the bottom position indicates Slow Speed.
6. Red contributes nothing to the name unless ALL aspects are red. Remember, “If it’s
not all Red then it’s not Read at all.”
Follow the signal progression from left to right...Notice the speed changes as the signal changes: CLEAR (Maximum Authorized Speed) - LIMITED CLEAR ( Not Exceeding 40 MPH until clearing all switches & interlockings, then Authorized Speed) - MEDIUM CLEAR ( Not Exceeding 30 MPH until clearing all switches & interlockings, then Authorized Speed) - SLOW CLEAR ( Not Exceeding 15 MPH until clearing all switches & interlockings, then Authorized Speed).
Follow the signal progression from left to right...Notice the speed changes as the signal changes: CLEAR (Maximum Authorized Speed) - LIMITED CLEAR ( Not Exceeding 40 MPH until clearing all switches & interlockings, then Authorized Speed) - MEDIUM CLEAR ( Not Exceeding 30 MPH until clearing all switches & interlockings, then Authorized Speed) - SLOW CLEAR ( Not Exceeding 15 MPH until clearing all switches & interlockings, then Authorized Speed).
What is the name of this Signal Aspect?
Medium Clear
Medium Approach
Restricting
What is the name of this Signal Aspect?
Clear
Restricting
Approach Medium
What is the name of this Signal Aspect?
Medium Approach
Approach Restricting
Stop
What is the name of this Signal Aspect?
Approach
Approach Slow
Slow Clear
What is the name of this Signal Aspect?
Approach
Slow Approach
Approach Medium
What is the name of this Signal Aspect?
Stop
Restricting
Clear
What is the name of this Signal Aspect?
Medium Clear
Medium Approach
Slow Approach
What is the name of this Signal Aspect?
Restricting
Slow Clear
Clear
What is the name of this Signal Aspect?
Stop
Diverging Approach
Clear
What is the name of this Signal Aspect?
Slow Clear
Slow Approach
Medium Clear
What is the name of this Signal Aspect?
Restricting
Slow Clear
Stop
What is the name of this Signal Aspect?
Appoach
Slow Clear
Medium Approach Medium
What is the name of this Signal Aspect?
Slow Approach
Advance Appoach
Approach
What is the name of the following indication? Proceed at Medium Speed until entire train clears all interlocking, controlled point or spring switches, then approach the next signal at Medium Speed. Trains exceeding Medium Speed must begin reduction to Medium Speed as soon as the Medium Approach Medium signal is clearly visible.
Medium Approach Medium
Approach Limited
Clear
What is the name of the following indication? Proceed at authorized speed.
Approach Medium
Medium Clear
Clear
What is the name of the following indication? Stop
Slow Approach
Stop
Restricting
What is the name of the following indication? Proceed prepared to stop at next signal. Trains or engines exceeding Medium Speed must at once reduce to that speed.
Approach
Diverging Clear
Slow Approach
What is the name of the following indication? Proceed at Restricted Speed until the entire train has cleared all interlocking, controlled point and spring switches (if signal is an interlocking or controlled point signal) and the leading end has: (1) Passed a more favorable fixed signal; or (2) Entered Rule 171 territory.
Approach Slow
Slow Clear
Restricting
What is the name of the following indication? Proceed at Slow Speed until entire train clears all interlocking, controlled point or spring switches, then proceed at authorized speed.
Approach
Slow Clear
Medium Clear
What is the name of the following indication? Proceed at Medium Speed until entire train clears all interlocking, controlled point or spring switches, then proceed at authorized speed.
Medium Clear
Approach Limited
Limited Clear
What is the maximum speed authorized for Limited Speed?
25 MPH
40 MPH
Maximum Authorized Speed
What is the maximum speed authorized for Medium Speed?
30 MPH
25 MPH
50 MPH
What is the maximum speed authorized for Maximum Authorized Speed?
50 MPH
The highest speed permitted for the movement of trains established by Timetable or Operations Bulletin
20 MPH
What is the maximum speed authorized for Slow Speed?
5 MPH
25 MPH
15 MPH
What is the definition of Restricted Speed?
A speed that will permit stopping within half the range of vision, short of a train, engine, obstruction, railroad car, men or equipment fouling track, any signal requiring a Stop, or any derail or switch lined improperly and looking out for broken rail, but not exceeding 20 MPH, or 15 MPH when diverting through any turnout or crossover.
20 MPH
15 MPH
A Home Signal is a fixed signal, capable of displaying a STOP indication, governing the entrance to a route, block, interlocking or controlled point.
True
False
Permission by a Stop Signal can only be given by the Train Dispatcher. Roadway Workers and other crafts never have authority to give permission by Stop Signals.
True
False
Are the wayside signals active for trains when such signals are in working limits?
Yes, signals always apply to trains, regardless of established working limits
No, trains do not have to obey signals in working limits
What Signal Rule is in effect on the NS Buffalo Main Line?
Rule 251
Rule 99
Rule 261
If a signal unexpectedly changes to a Restricting or Stop, or was not indicated by the preceeding signal, the movement must:
Stop as soon as possiblen without endangering the movement
After stopping, promptly report the occurrence and do not proceed until authorized by the Train Dispatcher.
All the above
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