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A. Generally Applicable Standards: <br />1. The minimum centerline radius for horizontal curves: 60' <br />2. The minimum radii of right-of-way arcs at corners are: <br />a. At the intersection of a Major Street with another Major Street or a <br />Residential Street: 15'. <br />b. At the intersection of a Residential Street with another Residential Street <br />or an Alley: 10'. <br />c. At the intersection of an Alley with a Major Street, a Residential Street, or <br />another Alley: 10'. <br />d. For the purpose of determining a Corner Lot, a Lot abutting an alley and a <br />street is not considered a Corner lot." <br />B. Intersection Turning Radius. The foregoing notwithstanding, streets and intersections <br />(excluding alleys) will be designed and constructed in such a manner so as to create an effective <br />minimum 25' inside radius and 50' outside radius travelway turning path, without conflict with on <br />street parking, medians or other fixed obstacles on the intersecting streets. This shall create a <br />25' radii for the front wheel path (inside radius) and 50' radius for the rear wheel path (outside <br />radius) from travel lane to travel lane at all intersections (excluding intersections with alleys), <br />regardless of the locations of curbs or parking spaces. <br />4. Generally Applicable Parking Standards <br />A. All turning radius designs on streets and alleys must be approved by the Director of <br />Engineering and Public Works to allow for garbage, utility and emergency vehicle access and <br />circulation. <br />B. Parallel parking is permitted on all street types except AL1-20. Designated parallel parking <br />shall have a stall length of 22' and a stall width of 8'. <br />C. Angled parking, if any, shall (a) be 45 to 60 degrees angled parking; (b) have a depth of 18', <br />measured perpendicular from the curb; and (c) have a parking stall width of 9'. <br />5. Alley Regulations <br />A. Alleys may be designed with an inverted crown. <br />B. Intersecting Alleys or Utility Easements Where two alleys intersect or turn at a right angle, a <br />sight triangle of not less than 10' measured from the point of intersection of the property or <br />easement line, shall be provided along each property or easement line where practical. Minimum <br />inside turning radius (alley pavement) of 35', with a minimum inside turning radius (alley <br />pavement) of 15' at street intersections. <br />C. The rear yard fencing and alley design shall accommodate one-sided, side loaded garbage <br />vehicle pick up on one side of the alleys only. <br />6. Roundabouts. Roundabouts are circular intersections that can be an effective intersection type with <br />lower speeds than conventional intersections, requiring less maintenance. For a Roundabout to work <br />properly it shall be designed for restricted speeds. The most significant feature that will restrict the speed <br />is adequate deflection. Entry and exit radii and the size of the central island control vehicle deflection. <br />Minimum standards shall be those of an urban single-lane roundabout. Particular note should be taken <br />that the roundabout: <br />, Blanco River Village PDD Development Standards <br />9