Today I came upon a bike accident that had just happened. I was traveling south on Broadway downtown and found this scene at Couch street. I asked other cyclists standing there and they said it was a crash of two bikes. Here's how I reconstruct the event from what people said. One was zooming along Broadway, as one does, Broadway being a main arterial. The other apparently tried to dart across Broadway at a gap in the cars, but neglected to wait for a gap in the bikes.
I have had this same problem. You're waiting and waiting, you're focusing on the cars, you finally get your chance, and your gap is filled with bikes. By the time the slow-mo bikes go by, you've got another wave of cars to wait for. This happens to me all the time when I'm headed home from my hidey-hole across the river and I'm on Thompson trying to cross Vancouver and Williams. Both of those streets have heavily used bike lanes and a ton of cars.
The other factor besides the weird timing is that you sort of use one kind of eyes to watch for cars and then you have to shift your eyes into a different gear to watch for bikes -- ever notice that? which is precisely why car drivers have trouble seeing bikes at all.
The number of cyclists in Portland is increasing so exponentially that soon there'll be enough of us to kill each other, independently of the car drivers.
Back to the accident on Broadway -- one cyclist, who was out of view behind the ambulance, was said to be in better shape than the other one, who was sitting on the pavement looking totally smackered talking to medics before finally being taken away in the ambulance. These are the only photos I had the gall to take. No mangled people, no bodies, no blood -- sorry. No can do. If anyone reading this saw it happen, feel free to post a comment with a more eye-witness account of the accident.