Sadly, no, or else by RAW you'd immediately fall straight down, up to 500', as soon as you jumped, meaning you'd never effectively leave the ground or that chasms are especially dangerous.
Ahh, but even the space station is technically falling as it orbits the earth. Seen an explanation here.
Where RAW is silent, I assume things work like the real world. Since gravity sucks, if you are not supported by something else you are falling. That's my story, I'm sticking to it.