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determined with due consideration of the minimum distance required for future separation of <br /> grades by means of appropriate approach gradients. <br /> (4) Roadways crossing the railroads shall be avoided. <br /> (c) Intersections. <br /> (1) Roadways shall be laid out so as to intersect as nearly as possible at right angles. A proposed <br /> intersection of two new streets at an angle or less than 75 degrees shall not be acceptable. An <br /> oblique street should be curved approaching an intersection and should be approximately at right <br /> angles for at least 100 feet from the intersection.Not more than two streets shall intersect at any <br /> one point unless specifically approved by the city. <br /> (2) Proposed new intersections along one side of an existing street shall coincide with any existing <br /> intersections on the opposite side of such street. Intersection jogs with centerline offsets of less <br /> than 150 feet shall not be permitted,except where the intersected street has separated dual drives <br /> without median breaks at either intersection. Where streets intersect collectors or arterials„their <br /> alignment shall be continuous. Intersections of arterial roadways shall be at least 800 feet apart. <br /> (3) Minimum curb radius at the intersection of two local streets shall be at least 15 feet, and <br /> minimum curb radius at an intersection involving a collector street or local streets in a commercial <br /> or industrial area shall be at least 25 feet. Alley intersections and abrupt changes in alignment <br /> within a block shall have the corners cut off in accordance with standard engineering practice to <br /> permit safe vehicular movement. <br /> (4) Intersections shall be designed with a flat stopping area of at least 30 feet in a residential area <br /> and 60 feet in a commercial or industrial area. The stopping area shall be designed to provide a <br /> maximum grade of two percent. <br /> (5) Where any street intersection will involve earth banks or existing vegetation inside any lot corner <br /> that would create a traffic hazard by limiting visibility,the subdivider shall cut such ground and/or <br /> vegetation (including trees) in connection with the grading of the right-of-way to the extent <br /> deemed necessary by the city to provide an adequate sight distance. <br /> (6) The crown of all streets, including intersections, shall be three percent or less. <br /> Final Draft page 34 <br />