I can't speak for all places, but where I live it's a huge problem. I don't drive a car. I can't even drive one, I don't have a license and I don't care for one because I don't like to drive and I'm terrible at it. I look really hot in the passanger seat though.. Anyway, cyclists here are constantly putting themselves and others in danger. They refuse to use the biking roads the government spent litteral millions constructing for them, roads that even have tunnels under the road so that they don't even have to get off their bikes at zebras or wait at traffic lights... They have no respect for walking people, and because those little rining bells "look stupid" they don't have those to warn you they are comming, so you only know it when they yell "hey!" when 4 meters behind you, and then obviously have to break because your not catwoman and capable of instantly reacting and jumping out of the way... And then I get yelled at. Well, not me because I look kinda scary, but you might! And of course they wouldn't want to look 'stupid' in their $300 biking tights...
In the city it's not a problem. Traffic is practically frozen 90% of the time, and the city is pretty compact so you can basically just walk anywhere worth being within about 30 minutes. The cyclists in town are not the "professional" types you see on the roads in the outskirts, they are generally students on cheap bikes that pedal their way trough town at a reasonable pace. Even the few serious ones slow down, I guess they realize there's simply too many pedestrians around they have to "hey!" and then swear at.
Casual Shinji said:
I'm from the Netherlands. Here motorists and cyclists live together in peace and harmony. Well... as much peace and harmony that can exist in traffic.
The only problem here is high schoolers riding side by side sometimes four at a time taking up the whole fucking road. Also, professional sports cyclists, but they're generally assholes anyway.
Your traffic culture much better includes bikes because EVERYONE in your beautiful flat country ride them! I have a friend there I visit frequently, and the bikes are everywhere! If they couldn't get along with the cars, all hell would break lose. You also have reasonable infrastucture to accomodate the bikers, which is good =3.
Go Dutch people! *cheers*