Several (about a half dozen) other “alternate” routes on the way east are described to  allow large vehicles to avoid unnecessary narrow mountain roads (Arizona), low  clearance obstacles (Missouri and Pennsylvania), and congested pedestrian areas (Indiana  and Ohio). Each of these is indicated in the remarks at the top of the associated  instructions page with details in a box at the bottom of the same page.  It is always prudent to plan ahead at least one Time Station and carefully look over the  next page of instructions. Many times a Time Station has been placed at a turn in the  route. That turn may appear on the page for that Time Station or at the start of the next  page. Look ahead!  GEAR 2020  Page 55 