Rot khen is the
Thai term used for any kind of cart, pushcart, trolley,
barrow or wagon,
including food carts and those used as mobile
kitchens by street vendors selling street food.
When it has three wheels rather any other number,
it may additionally be referred to as
rot saamloh.
Two kids seen here are on pushbikes, which are known in
Thai as
rot
chakrayahn (fig.).