"Oncoming traffic does not yield" in any metropolitan city.
If a street looks quiet, here's a tip to make it to the other side without using a crosswalk...keep looking both ways (that's left and right people, not up and down) over and over and over again until you make it to the other curb. If you have to sprint to make it across and the oncoming car would pass a second after you step on the opposite side...then it's not worth the risk. Suppose you fall? Then you just become a speed bump on Glebe Road or Georgia Avenue. (Was that too graphic?) If you sprint and won't cut it that close, then take your chances, but watch your step. It's certainly better if you can make it across without having to run. If you safely crossed 30 seconds later when traffic was quieter, I'm sure you'd have been just fine.
Playing Grand Theft Auto makes it seem so easy.
One other thing, if you do cross a busy street outside of the crosswalk and you see a car approaching, please don't stop in the middle of my lane to stare at me. I'm not the one who doesn't want to live to see what the opposite sidewalk feels like. Just remember, a moving car almost always beats (both competatively and physically) a live target.