A.
The intent of this Subsection 4.01. is to promote safe roadways by ensuring adequate visibility at intersections.
B.
These regulations are effective whenever any development is
occurring or any objects are placed or modified within the Sight Visibility
Triangle as defined by 4.01.02. below.
(Ordinance 2017-13 adopted 10/2/2017)
A.
The Sight Visibility Triangle shall remain open and completely
unobstructed at a height between two (2) feet and eight (8) feet above
the top of the adjacent curb. This includes signage, plantings, fences,
or any other items.
B.
No development requiring a permit shall occur within the Sight
Visibility Triangle at any height.
C.
Sight Visibility Triangle shall be indicated as an easement
on Plats and identified on Site Plans.
D.
Sight Visibility Triangle minimum leg dimensions shall be determined
according to the following:
1.
Street/Street Intersection: Twenty-five (25) feet.
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Figure 60. Sight Visibility Triangle for a Street/Street
Intersection
|
2.
Street/Alley Intersection: Fifteen (15) feet.
|
Figure 61. Sight Visibility Triangle for a Street/Alley
Intersection
|
3.
Driveway/Street Intersection: Fifteen (15) feet.
|
Figure 62. Sight Visibility Triangle for Driveway/Street
Intersection
|
E.
Modified Dimensions.
1.
Reduction. The required dimensions in D above may be reduced
by the City Engineer if the City Engineer determines that the reduction
is necessary due to site-specific constraints and does not negatively
impact the safety of the intersection.
2.
Increase. The required dimensions in D above may be increased
by the City Engineer if the City Engineer determines that the increase
is appropriate due to site-specific constraints and roadway speeds
to ensure the safety at the intersection.
a.
Increased sight distances shall be calculated in accordance
with the latest edition of the AASHTO "A Policy on Geometric Design
of Highways and Streets."
b.
If a field inspection indicates that driveway sight distance
may be insufficient, the Applicant will be required to submit vertical
and horizontal information prepared by a registered professional engineer
to the City Engineer that verifies adequate sight distance is available
for the proposed driveway location.
3.
Intersection Sight Distance. On a corner lot in any district,
nothing shall be erected, placed, planted, or allowed to grow in such
a manner so as to materially impair the Intersections Sight Distance
(ISD) as defined in the current edition of the American Association
of State Transportation Officials (AASHTO), A Policy on Geometric
Design of Highways and Streets; without approval of a variance by
the City, except that fences, walls, or hedges may be permitted provided
that such fences, walls, or hedges do not impair vision from three
(3) feet to six (6) feet above the curb line elevation.
(Ordinance 2017-13 adopted 10/2/2017)
