I am a runner and biker. I think that the lanes are for pedestrians, meaning bikers and runners but as with any situation, people using them should follow good codes of conduct – don’t run or bike side by side taking up the whole lane, communicate about coming up on people’s left side, and be courteous to each others. Many people give up the cars because of the way people act behind the wheels. The last thing we want to do is mimic their bad behavior. Yes, runners and bikers can both use the sidewalk, and yes they ae called bike lanes, but the lanes are not for racing or for bike training, but for commuting and a bike obeying speed laws should be able to co-exist with polite runners who don’t run in a pack and take over the lane.