Weekend and go through Balt Washington area after 9 or 10pm or before 4 am and it will be pleasant We found that the "ON" ramps are really on! Lines of cars and sometimes double lanes trying to jump in front of us not caring that we cannot stop on a dime. We no longer try and get out of anyones way. If they are too dumb to look as they merge, then they are either going to hit that gas pedal hard or slam their brakes on....had too many time for us to scurry in a big rig. We do late at night or not at all and have taken route 81 south of richmond north as well.