(a) Streets shall be designed to meet or exceed the standards set forth in this Section. For the purposes of street and intersection design, the following definitions of terrain classification shall be used:
(1) "Level" means a slope range of 0 to 8 percent.
(2) "Moderate" means a slope range of 8.1 to 14.9 percent.
(3) "Steep" means a slope of 15 percent or greater.
(b) Street Widths.
(1) Minimum street right-of-way and cartway widths shall be as follows:
CLASS OF STREET | RIGHT-OF-WAY WIDTH | CARTWAY* WIDTH |
Local Street | 50 feet | 28 feet (a) |
Collector Street | 60 feet | 36 feet (b) |
Secondary Arterial | 60 feet | 36 feet (c) |
Primary Arterial | 80 feet | 60 feet (d) |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards | |
* Cartway width for local streets is based on back to back curb measurement, width for all other streets is based on face to face curb measurement.
(a) and (b) includes parking permitted on one side of street.
(c) includes left turn stacking lanes at intersections of two arterial streets and no permitted on street parking.
(d) includes center turning lane/left turn stacking lanes and no permitted on street parking. Additional right-of-way and cartway widths may be required at the intersection of two arterial streets in order to provide exclusive right turn lanes.
(2) The sufficiency of all proposed street right-of-way and cartway widths shall be determined by the City Engineer based upon estimated trip generation data for the subdivision. For staged or phased subdivision, or where the submitted Subdivision Plat covers only a part of the Subdivider's entire landholding, trip generation data for future stages or phases of development shall be considered with regard to street and intersection design.
(c) Design Specifications for Streets. Minimum street design specifications shall be as follows:
CLASS OF STREET TERRAIN CLASSIFICATION
(1) Minimum/Maximum Centerline Grade | Level | Moderate | Steep |
Local Street | 0.5%/4% | 0.5%/8% | 0.5%/15% |
Collector Street | 0.5%/4% | 0.5%/8% | 0.5%/12% |
Secondary Arterial | 0.5%/4% | 0.5%/6% | 0.5%/9% |
Primary Arterial | 0.5%/4% | 0.5%/6% | 0.5%/6% |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards | ||
(2) Minimum Sight Distance. | |||
Local Street | 200 feet | 150 feet | 125 feet |
Collector Street | 250 feet | 200 feet | 150 feet |
Secondary Arterial | 250 feet | 200 feet | 200 feet |
Primary Arterial | 400 feet | 350 feet | 300 feet |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards | ||
(3) Minimum Centerline Radius of Horizontal Curves. | |||
Local Street | |||
Angle of turn greater than 80 degrees |
100 feet |
100 feet |
100 feet |
Angle of turn less than 80 degrees |
200 feet |
150 feet |
100 feet |
Collector Street |
300 feet |
275 feet |
150 feet |
Secondary Arterial |
325 feet |
275 feet |
200 feet |
Primary Arterial |
650 feet |
450 feet |
425 feet |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards | ||
(4) Minimum Length of Vertical Curves. (feet for each algebraic difference in grade) | |||
Local Street
(100 feet min.) |
30 feet |
20 feet |
10 feet |
Collector Street
(100 feet min.) |
50 feet |
30 feet |
20 feet |
Secondary Arterial
(200 feet min.) |
50 feet |
30 feet |
30 feet |
Primary Arterial
(300 feet min.) |
120 feet |
100 feet |
70 feet |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards | ||
(5) Minimum Length of Tangents Between Reverse Curves. | |
Local Street |
100 feet in all cases |
Collector Street |
150 feet in all cases |
Secondary Arterial |
240 feet in all cases |
Primary Arterial |
270 feet in all cases |
Freeway/Expressway | As per Ohio DOT/AASHTO Standards |
(6) Crown. The slope of the crown on all streets shall be more than three-sixteenths (3/16) inch per foot and less than one-third (1/3) inch per foot or as determined by the City Engineer. Superelevations shall be introduced in horizontal curves on all streets except local streets.
(d) Design Specifications for Intersections.
(1) Street intersections involving the junction of more than two (2) streets shall not be permitted. Minimum street intersection design specifications shall be as follows:
TERRAIN CLASSIFICATION | |||
SPECIFICATION | Level | Moderate | Steep |
Clear Sight Triangle at Intersections (Length along each approach leg) | 90 feet | 90 feet | 75 feet |
Vertical Alignment with Intersection | Flat | 2% max. | 4% max. |
(Followed for a distance of 50 feet from the intersecting street right-of-way) | |||
Minimum Angle of Intersection | 75 degrees, 90 degrees preferred Intersection (Streets shall remain in the angle of intersection for a distance of 100 feet from the intersecting street right-of-way) | ||
Minimum Curb Radius
Local - Local 20 feet in all cases
Local - Collector 25 feet in all cases
Collector - Collector 30 feet in all cases
Collector - Arterial 35 feet in all cases
Arterial - Arterial 35 feet in all cases
(2) Streets intersecting from opposite sides with a common street shall be designed either directly opposite one another; or if necessary, separated by an offset between centerlines measured along the centerline of the cross street as follows:
CROSS STREET | |||
CLASS OF STREET | Local | Collector | Arterial |
Local to Local Street | 150 feet | 400 feet | 500 feet |
Collector to Local street | 200 feet | 300 feet | 500 feet |
Arterial to Local Street | 200 feet | 400 feet | 500 feet |
Collector to Collector | 400 feet | 500 feet | 1,320 feet |
Collector to Arterial | 1,320 feet | 1,320 feet | 1,320 feet |
Arterial to Arterial | 2,640 feet | 2,640 feet | 2,640 feet |