Originally Posted by
exile
If I am understanding correctly you have few options. You can try to cross the street, but if it is really busy could take a while. You could ride on the sidewalk until you get to a spot where you can cross. However if it is heavily walked you may just walk with the bike until you can find a place where you can cross. You could also merge with traffic (going opposite your intended direction) until you can find a place to cross over.
These are your best options. I cross 4 lanes of traffic making a left every evening and it can take a while to get enough of a break but I just wait for it. Fortunately, it usually doesn't take too long for a decent opening.