Emerson Zooline Railroad, Saint Louis Zoo

At the Saint Louis Zoo is a 2-foot narrow gauge railroad with a 1.5-mile loop around the zoo with 4 stations. This is the Emerson Zooline Railroad. I spoke with some of the staff (mostly elderly retirees) and a mechanic to learn the technical aspects of the railroad.
Technical Facts:
-Gasoline motor and transmission box turn a drivetrain that gives traction to the pilot axles and trailing axles, which must be capable of handling a fully-loaded 57-ton train up and down the steep hills.
-While standard gauge trains increase air pressure to release the brakes, these narrow gauge trains bleeds air to release the brakes.

[@tropicalrailroadproduction5028]

Great catches.

[@fionalover2.0gaming18]

Awesome video.

[@personperson3326]

St.Louis is the only free zoo in the United States. 🤫🤣🤣🤣🤣

[@Highgear145]

If you stay there all day you'll be forced to pay $20 for a hotdog and $10 for bottled water

[@nowfelbasheer7119]

Is it an original video or animated. Because my dream project in my State.

[@amfan_17presentations87]

This is a compilation filmed from my phone. Definitely original.

[@andylee237]

Wonder what engine these have

[@Highgear145]

4 cylinder diesel