Ha! My score is a 15! I guess it's because we have no sidewalks on my street and it's 4 miles from town, on a huge hill. However, to me that's close. I don't walk to town (well, I did twice), but I do ride my hybrid there.
Funny, we have tons of cyclists and walkers here even though it is ranked so low. But if you were a "regular" person living on my street would be a detriment to riding.
It's just far enough away so I don't become fat from going to all of the restaurants in town. If I lived one mile closer, I might be tempted to walk there more often.