Is this a one or two lane road?

There is this divided road that has always been a problem for the police. Numerous auto accidents have occured on this street. Here is the problem: The road is really narrow. Barely enough room for one vehicle to safely drive on it. Many drivers have attempted to make this a two-lane road, by passing another vehicle and causing an accident. This road is divided by a grassy medium. Finally, some engineer decided that a sign would be posted, stating this to be a one lane road. That ended the traffic accidents. Here now is the kicker. They have installed a Bike Lane on the right side of this narrow road. Question: The posted signs states “Single Lane Traffic”. How can this be, when there is now a Bike Lane? Would this not make a single lane of traffic into two lanes, since bicyle riders are to obey all traffic laws? This is really confusing now, more than ever. What you think?