WOW so many people that have obviously never ridden a bike for an extended period of time... SIDEWALKS ARE A DEATH TRAP!!!!!!!!! Cars anticipate people that walk across from side to side, you can NEVER see what is coming down a side walk. And cars who are on a side street stop higher up than the side walk. Imagine you are biking on the sidewalk on the left side, and there is a building to the left of you and the main street is on the right. You approach a side street, you have 0 visibility b/c of the building that you are basically up against. Right as you enter approach the sidewalk ramp a car comes there and stops right in front of you, trying to see traffic and turn onto the main street. You T-bone the side of the car near the front. This is a life threatening situation, and actually I have heard of fatal incidents of this nature.
When you are on the street, ALL CARS SEE YOU!! The ones behind avoid you, the ones on side streets see you because they look to see TRAFFIC and you are part of that traffic. RUNNING across a street from sidewalk to sidewalk is dangerous because it is not part of the trafic, a faster moving bike is even more dangerous from sidewalk to sidewalk.
When you are on the street, ALL CARS SEE YOU!! The ones behind avoid you, the ones on side streets see you because they look to see TRAFFIC and you are part of that traffic. RUNNING across a street from sidewalk to sidewalk is dangerous because it is not part of the trafic, a faster moving bike is even more dangerous from sidewalk to sidewalk.