how do i make the exit for a flat track ride ? (race cars); thanks

You need to have a it like this:

r
r
rrrrrrrrrrrrrrrr
eeeEXITee
eeeeeeee
eeeeeeee


e=empty fields
EXIT=obvious
r=racetrack
You need a straight line and and best 1-2 empty fields till you reach your regular path.
You also need space to add the waiting queue...

Cheers