|Monorails are touted for many reasons, but narrow guideway is one item at the top of the list. That said, there are companies proposing to do better than monorail. Imagine bi-directional travel of transit vehicles on one beam, not two. That is the chief characteristic feature of the monobeam system. While monobeam may seem to be a new idea, it has been around for some time. The Scherer Monobeam was promoted without success in the 1960's. Still, the concept remains today and at least two companies are promoting very different versions of the concept.