We previously discussed The Train Anthropomorphic, noting Thomas, Chuggingtons, Underground Ernie, and Transporters. I somehow missed two additional obvious examples.
The first is clearly a Thomas knockoff: Azul the Train in Dora the Explorer.
The Little Engine That Could - a story most famously conveyed by an author under the pen name "Watty Piper". This has been recently remade (2011) as a direct to DVD movie featuring Whoppi Goldberg (available on Netflix streaming). An earlier animated version (1991) achieved cult status in Wales.