Chicago bike accidents are occurring with great frequency this summer and any cyclist can recount stories of near collisions that could lead to Chicago bike injuries.  Enforcement of bicycle safety law has ranged between lax and nonexistent.  Chicago cyclists ignore traffic signals and Chicago drivers have no qualms about stopping in Chicago bike lanes.  With the proliferation of Chicago police officers patrolling on bicycles, the City authorities should be well-aware of the number of traffic infractions and the potential to cause a Chicago bike accident.  Users of Chicago streets must determine whether to allow the current system to remain in place or to begin enforcing the Chicago bike law.  On a busy weekend night valets constantly cause sudden and unexpected obstacles to bike traffic and can result in bike injury.