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[SueM loves WDW]

Originally Posted by TNTWheels

I was tought as a child alway back up on a left or a ramp (unless like the WDW monorail ramps) so you can turn sharp once in side the buses or School's buses.

People with their own power wheelchairs should check the instruction manual. Some of them say not to back up. My daughter's previous power wheelchair was a rear wheel drive wheelchair with the rear wheels having power and the smaller front wheels were just casters with no power.
Her current power wheelchair is a mid-wheel drive model with a set of casters in the front, a set in the back and a set of large wheels with power in the middle. The instruction book for her new power wheelchair says to never back it up a ramp because it is too hard to control the direction with the small rear casters.

Most ECVs should be backed up ramps because they are heavier in the front and could tip over backwards.