L-train, el-train, or something else?

Question

How do you spell it?

Answer 1

True, "EL" is for the type system, "elevated."

However, don't write off the lowly "L".  

By way of example, "L" may refer to a specific line, as in, take the "A" train and change to the "L" train at station XYZ.

Answer 2

El.  Short for elevated.

Answer 3

el--it is short for elevated--elevated railway

Answer 4

E-L (el), short for E-V-E-L-A-T-ED (Elevated).