Then just place the turning templates over top (hence why the laminate sheets are easier, otherwise use a lightbox or a window) and move them through your design. Then print your piazza layout out to scale.
Print the turning templates out to scale (ideally print them on clear laminate sheets). I have all the vehicle dimensions that I need, I just need to know how to calculate and draw the geometry. I have the Metric Handbook beside me which has typical 90 degree turns drawn but it is not obvious how they were drawn in the first place. On a scaled location plan, I would like to draw the scaled turning circles of cars and lorries - especially emergency vehicles.
I am designing a piazza that most types of vehicles need to circumnavigate. This is more of a geometrical question rather than an AutoCAD one.