Songthaew are
pick-up
truck or trucks (fig.)
with two rows of seats or benches in the back and a roof covering. It
usually operates as a share taxi, i.e. somewhere between a private taxi and
a conventional bus.
They
operate on a fixed or semi-fixed route and for a set
fare, but without a fixed time schedule and able to stop
anywhere to pick up or drop off passengers, and are
at times very crowded.