Patrick O'Neill reports on increased clashes between bikers and non-bikers on Portland's light rail system, the MAX. This hasn't been a problem yet for SkyTrain, which bans bikes in certain directions during rush hour periods (towards downtown in the morning, away from downtown in the evening). It might increase, however, as there's nowhere to hang bikes like there is on the MAX: instead, most people (including myself) have kept them near the doors for quicker entry and exit.