Visual obstructions to a motorist's view at
the intersection of streets or driveways are not permitted at any
time within any sight triangle, as specified herein. Such obstructions
include but are not limited to any sign, hedge, fence, shrubbery,
foliage, automobile or other object as determined by the Town of Islip,
whether movable or stationary, which is higher than three feet and
lower than eight feet above the adjacent edge of pavement. Such obstructions
shall not include existing buildings, public utility poles, traffic
control devices, natural grades, sign posts or small trees which do
not exceed 12 inches in diameter or 38 inches in circumference and
which are trimmed to the trunk leaving a clear area between three
feet and eight feet above the adjacent edge of pavement as illustrated
in Figure 404.