(2) Two arrowheads are 7 but less than 10 percent.
(3) Three arrowheads are 10 but less than 14 percent.
(4) Four arrowheads are 14 percent and above. This symbol will display an uphill at all times.
h. Width constriction symbol: The number on the left indicates the width. The figure on the right
indicates the total length. Both are in meters.
i. Off-route movement symbol: Use to identify roads that turn off the main route into woods or
roads entering CP areas, holding areas, etc.
(1) The circles stand for deciduous trees.
(2) The one arrow as displayed means "existing" for off route.
If recorded with the word
"possible," or no word at all, this means that there is a possible turn out.
(3) The second symbol identifies an off route movement that will be used by track traffic only.
(4) The third symbol identifies off routes movement that only handles wheel traffic.
(5) The fourth symbol identifies a turn out for distances for 1 kilometer. If longer, write the
(6) The fifth symbol identifies off route movements for distances of over 20 meters (on this route
you went down 400 meters). The distance of any of these off route movements can be displayed in any
of the four symbols.
j. Tunnel: Numbers on the left indicate overhead clearance. If the tunnel walls slope or slant or
have a sidewalk, identify the minimum (side) height and maximum (center). Sidewalks will affect width
measurement. So identify the minimum width, which is a travel way width. The overall of maximum
width from wall-to-wall distance will include road and inside walks. The number at the right is the total
length of the tunnel. The number in the middle of the tunnel is assigned to the tunnel by Highway
Traffic Headquarters (HTH). Place the symbol on the overlay. Draw an arrow from the symbol to the
location of the tunnel on the route.
k. Bypass symbol: Bypasses are local detours along a specified route. These enable traffic to
avoid obstructions in the roadway.
(1) Bypass easy. This is when an obstacle can be crossed nearby with 2 1/2-ton truck or NATO
(2) Bypass difficult. The obstacle can be crossed but some work will be necessary by
engineers to prepare the bypass.