By looking at 10 different load out systems, researchers were able to identify key aspects of well built, low stress handling systems that are beneficial to producers.

Recommended practice indicates that ramp angles should be less than 20°, that ramps should be fitted with cleats and have a non?slip surface.

It is recommended that loading facilities be well lit. Also behavior of the people doing the load-out has significant effects on the procedure. All factors, lighting, design, and handling techniques, should be looked at when trying to improve load-out procedures.

http://www.prairieswine.com/loading-facilities-for-market-hogs-saskatchewans-top-ten-2/