Wheelchair on a 15% slope [closed]

Wheelchair on a 15% slope [closed] - A Person Sitting in a Wheelchair

I'm about to take my friend on a trip. This friend is in a wheelchair. It's mostly flat pavement with one exception. There is 15% slope I will need to climb up and down. It's something like 300 meters but it seems quite steep.

Is it reasonable to think this will be no problem at all? The wheelchair has brakes and is pretty light. The person does not have more than 65 kg. I would say I'm in good fitness form. The surface is asphalt.

Thanks, Endokr



Best Answer

The ADA specs in the USA call for a maximum grade of 1:12 (8.3%) for ramps. But many disabled people who don’t have upper body strength find even this is too steep. So 15% for sure is too steep for most people to do by themselves. Your friend may be a wheelchair triathlete, it’s hard for us to know.

Furthermore, the ADA also calls for landings every few yards. These are necessary rest areas with a zero grade. They are especially important if the wheelchair brakes won’t hold on a steep grade because otherwise you might have a runaway chair.

It sounds like you’re pushing. 15% is quite steep and 300 meters is quite a long run. Try to consider what will happen if you lose your grip or fall while pushing your friend up or down. Do they have enough strength and control to bring themselves to a full stop on such a grade? I’d first practice with someone who is able bodied and able to leap out of the chair if it goes out of control.

Many tourism councils can refer you to a local power wheelchair or scooter rental office. Or can suggest an alternative route or hook you up with local paratransit options such as an accessible taxi service.




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What is the maximum slope for a wheelchair?

Maximum slope for hand-propelled wheelchair ramps should be 1" of rise to every 12" of length (4.8 degree angle; 8.3% grade). Maximum slope for power chairs should be 1.5" rise to 12" length (7.1 degree angle; 12.5% grade).

What is the minimum slope for a wheelchair ramp?

The ramp must have a 1:12 slope ratio. This means that there must be a one-inch rise in the ramp for every corresponding 12 inches of the ramp.

What is the steepest permissible slope for an accessible ramp?

The maximum recommended slope of ramps is 1:20. Steeper slopes may be allowed in special cases depending on the length to be covered (fig. 4). Ramps should be provided with landings for resting, maneuvering and avoiding excessive speed.

What is a comfortable slope to walk on?

The slope is one inch vertically for every 16 inches horizontally. The maximum good slope is easily manageable by both people walking and wheelchair users, so I think it is. The ADA requires that ramps rise no higher than 30 inches.




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