5 or So Pieces of Children's Transportation Fiction You Should Read (With Your Kids)
Thomas the Tank Engine by Rev. W. Awdry
If you believe your kids should be indoctrinated in transportationism, you will get them appropriate books. While transportation fiction is a narrow category, kids books about transportation are plentiful. Here are some books and stories I liked for which the transportation technologies are important elements and geared toward younger readers.
The Phantom Tollbooth (book and movie)
Go, Dog, Go! - PJ Eastman (the abridged version is almost poetic)
Don't Let the Pigeon Drive the Bus - Mo Willems
The Railway Series - Rev. W. Awdry
Suggest more in the comments