Yes. http://www.caltrain.com/stations/systemmap.html http://www.caltrain.com/stations/systemmap.html This isn't a subway, where the entry points are clearly d

Yes. http://www.caltrain.com/stations/systemmap.html http://www.caltrain.com/stations/systemmap.html This isn't a subway, where the entry points are clearly defined. Look at this station, for example http://goo.gl/maps/vmYxx http://goo.gl/maps/vmYxx The tracks keep going, with basically nothing protecting them. Putting up walls around the entire thing would be a significant undertaking.