The image posted below - I still see it as taking an elegant shot at integrating aesthetics with accessibility - drew a Facebook comment from Jonathan David Post, and he's right.
And Mr. Post's comment:
"This is a cool solution visually but maybe not the most functional. A few problems: Too steep. Too long. No railing (If you slip what happens? Tumble to your death?). What if there's a crowd of people going up/down? Roll through them?
My mother's been disabled my whole life so I tend to notice poorly designed ramps and doors..."
The original image came from DoSomething's page, the post was on October 4, and you can read more good comments, both supportive and critical, there.
Just goes to show - there's always more to think about.