Ben Chambers wrote:

> In a scene I'm working on, I have a walkway which is calculated via trig 
> to reach a certain point.  However, I'm concerned that it appears too 
> steep for people to walk on.
> 
> Currently, it drops approximate 1 foot for every 3 feet forward.  While 
> not an exhausting slope (I've climbed much worse), I'm thinking of 
> splitting it into sections of shallower slopes, interspersed with 
> sections of stairs.  (Of course, for usability, I'm going to add 
> escalators etc, but that's a different aspect of this).

A slope like this would be very difficult for someone on a wheelchair.

And if there is any ice or hard-pack snow on the surface, ordinary 
walking is going to be downright dangerous.

I suspect that a 10% grade (10:1) is the very steepest acceptable.

Regards,
John

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