Machines are not used in my fictional setting (though I wouldn't rule out someone inventing something or pinching an idea from Earth here as my world happily steals ideas it likes the look of).
How does travel work in your world(s)? Is it reliant on magic alone, machines alone or both? Is travel restricted to those of a certain class or limited to certain hours? Why are these restrictions in place and who set them?
Are animals used for travel and how were they trained to do this if so? Does anyone rebel against the restrictions and what are the consequences? How are travel arrangements funded?
Is there a Highway Code or other guidance travellers have to follow? Is travel a comfortable business or something most dread?
Answers to these questions could trigger stories in themselves but would certainly give background to your world building and help make it seem more realistic given the joys and pains of travelling would be something most of us can identify with.