Bicyclists are not the only ones who have problems with rails. All two-wheelers need to be careful around them. We just passed by a motorcyle on the ground with two people wearing helmets standing by it on Third Street. They were straddling two south facing lanes. We were driving north. They were near a well-lit intersection so we assume they were safe.
This is a reminder to everyone on two wheels to avoid driving on the rails. Just avoid them if you can, and if you must drive across them, try to do so at or near a 90 degree angle to avoid a spill. This is especially important in the rain.