Specs
A flagperson is required when work occurs within this distance of centerline of rail
What is 20' from centerline of rail?
A typical material used for a railroad tie
What is concrete/timber/steel?
While Roadways angles are measured along the length of a section of curve subtended by an Arc, railroads are measured by a section of
What is a Chord?
Electrical Conduit crossing rail shall be installed with this type of PVC pipe
What is Schedule 80?
The Unit of measurement for length of track
What is Track Feet (TF)?
Subballast has the same gradation as this commonly used material at POLA
Rock used to provide lateral support for tie and help distribute load
What is Ballast?
The Design Speed at POLA
What is 10 mph?
Has widely replaced a hand-thrown switch machine.
What is a powered switch machine?
Our rail Operator at POLA and POLB
What is Pacific Harbor Lines (PHL)?
This critical piece of a turnout is made from manganese (also named after an amphibian)
what is a frog?
Two turnouts (switches) used to connect side-by-side tracks
What is a crossover?
The live load basis of design locomotive for freight railroad
What is Cooper E-80?
The minimum horizontal clearance to a power pole from track centerline
what is 10' tanget track/11' curved track?
Weight per yard (lb/yd) of standard POLA rail.
What is 136 lb/yd?
Typical timber tie spacing
what is 19.5"?
What is 4' 8"?
The maximum grade that should be used on mainline track
What is 1%?
The Radio Controlled system DTMF stands for
The professional association for rail way engineering known as AREMA is an abbreviation for
What is the American Railway Engineering and Maintenance-of-Way Association?
Ballast shall be placed in lifts no more than
what is 4 inches thick?
What is 105 degrees? (+-5) degrees
The minimum radius that should be used in rail design
what is 459'?
Portal Frames use this type of technology to check incoming and outgoing containers
What is RFID?
Considered the Big Four of "Class I" railroads (name two)
What are Northfolk Southern, CSX, Union Pacific and BNSF?