I genuinely think they need more than a painted bike and a single white line every quarter mile... and the occasional solitary sign every couple miles. Different colored paint or better signalling would go a long way in solving actual mistakes and would also kill off "willful ignorance." If its obvious and clearly marked you can be more aggressive with tows and tickets which, in a perfect world, could finance more of the same. Open lanes could work in places where its not as easy or convenient to 'be that guy .'