boy that was quick, i sort of figured that a bridge would be needed, but i dont want a mirror image track, as ive wired my track with + polarity and reversing switches as well as voltage controll for the kids. it will need very long and shallow inclines and declines, because ive got some very fast metal chassis cars i dont want to launch into the walls. i,ll google trackman and take it from there. thanks for the help guys. john