Quote Originally Posted by canonsue View Post
I think the biggest problem is when some bicyclists ride next to each other and will not ride single file when in traffic. That is why we have many signs that tell bicyclists to ride single file. You would think that is common sense.
Careful with statements like that one... as with many traffic laws it depends totally on *where* you are. We don't have a national code for this so individual jurisdictions are free to do what they think is best. In Washington state it is entirely legal to ride two abreast. That doesn't necessarily mean we don't ever think riding single file is the sensical and do it, but being two abreast is not illegal, traffic or no traffic.