>> Okie & Klaus, Thanks for your replies.
You both mentioned that it's a wheel chock dolly, and that makes perfect sense to me.
It looks like these carts are used to carry other equipment as well.
When I worked on the ramp for a Bizjet FBO at Toronto's YYZ
, the largest aircraft that were base on the ramp were 2 Convair 580's. For these large jetprops, us ramp rats used a bunch of wooden 4x4's that were painted bright orange. We'd carry them on the front of our tugs and then just rest them on our shoulders before chocking the nose gear and main gear.
During the winter, after snowplowing the ramp clean, us ramp workers would find these bright orange wheel chocks in some pretty strange places.