(1) Tourist-oriented directional signs shall be installed, at a minimum, in accordance with the chart for stopping sight distance pursuant to ARM 18.7.320(3) and may be installed farther from the intersection when necessary for motorist safety and convenience. Tourist-oriented directional signs should not be installed less than 200 feet in advance of the intersection and should maintain a minimum of 200 feet between touristoriented directional signs and any other highway signs, with the exception of no parking, loading zone and similar signs. However, spacing of less than 200 feet between signs may be allowed with department approval.

(2) In areas where speeds of 45 miles per hour and less are posted, sign spacing may be reduced, if necessary, with a minimum spacing of 100 feet between tourist-oriented directional signs and other highway signs. No parking, loading zone or similar signs shall not be considered for minimum spacing requirements.

(3) The right turn sign shall be the closest to the intersection with the left turn sign being the farthest in advance of the intersection.

(4) The advance tourist-oriented directional sign "1/2 Mile" or "Next Right (or Left) " may not be used unless the department determines that it is needed for highway operational safety.

(5) Signs may be erected for facilities in the ahead direction. The legend AHEAD in appropriate letter size may be used in lieu of directional arrows.

(6) Signing for right, left or ahead directions may be allowed for visible and identifiable activities to address safety problems upon department approval.

(7) The maximum number of tourist-oriented directional panels shall be 12 in each direction of travel at each intersection, and the maximum number of advance tourist-oriented directional panels shall be 9 in each direction of travel at each intersection.

(8) Where the number of activities to be signed is four or less at any one intersection, the tourist-oriented directional panels for right and left may be combined on one tourist-oriented directional sign. On a combination sign, the tourist-oriented directional panels will be arranged with the left arrows at the top and the right arrows below.

(9) Lateral clearance for tourist-oriented directional signs shall be equal to or greater than the other guide signs at the intersection. If adequate lateral clearance cannot be maintained due to terrain or other obstruction, tourist-oriented directional signs may not be installed.

(10) Where the right-of-way includes a sidewalk, tourist-oriented directional signs shall be erected beyond the outside edge of the sidewalk and are prohibited where there is insufficient right-of-way to erect the signs, except where prior approval from the department is obtained.