Sure. When I drive to work on Guadalupe in heavy morning traffic, I see cyclists curb hugging and getting buzzed. Others take the sidewalk, often in the wrong direction -- the sidewalk is in horrible condition and there is a huge light pole dead in the middle every 500 feet.

There is absolutely no reason to take Guad. When I ride my bike, I take Avenue A, exactly one block east. It is a traffic-less neighborhood street through the lovely Hyde Park neighborhood. Sometimes I see friends. When Ave A runs out, I go 4 more blocks out of my way east to catch Speedway, where there is a bike lane (useless, full of glass and parked cars) and little enough traffic that my taking the lane is comfortable to me and to the cars.

I see people on bikes route-picking like cars and it makes me sad b/c they could be having so much more fun. But than again, maybe I'm just an arrogant a***ole, b/c I used to really love riding right in the thick of traffic. So to each his own... but I feel way safer on my easy route on a bike than I do driving in my car on Guadalupe through downtown.