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• separate access points as a single divided entrance median extends into the <br />neighborhood for an unbroken length of at least 100 feet to an intersecting <br />internal street which provides at least two routes to the interior of the subdivision. <br />For example, the entrance street cannot be a dead -end or cul -de -sac, and it <br />cannot create a "bottleneck" allowing only one emergency route into the interior <br />of the subdivision. Residential lots may front onto any median - divided street <br />section, and residential driveways may be located in front of a median. Single <br />street access serving areas over 75 lots, but not exceeding 150 lots, shall be <br />accessed by a divided street with a center median. This divided street section <br />shall continue until the first internal intersection. (See Exhibit III -3). <br />Section 7.4.2.1 <br />(b) Alleys in Residential Districts. In residential districts, alleys shall be parallel, or <br />approximately parallel, to the frontage of the street. Two -way alleys in residential <br />districts shall provide a minimum of 20 feet of right -of- way /easement and 17 feet of <br />pavement. One -way alleys shall provide a minimum of 15 feet of right -of -way /easement <br />and 12 feet of pavement. <br />Section 7.4.2.2 <br />(c) Dead -end or "hammerhead" alleys shall be allowed, but limited to appropriate <br />locations and shall be submitted to the City for review. Cul -de -sac alleys shall have a <br />minimum turning radius of 28 feet. <br />(f) Pads for garbage cans shall be placed outside of pavement drive width and are a <br />minimum of 4 feet by 6 feet. <br />• Section 7.4.1.4 <br />(a) Arrangement of Streets Not Shown on the Thoroughfare Plan. For streets that are <br />not shown on the City's Thoroughfare Plan, such as local residential streets, the <br />arrangement of such streets within a subdivision shall: <br />(1) The Conceptual Land Use Plan (Exhibit II -2) indicates all required <br />thoroughfare roadways as well as all required street connections to adjacent <br />properties. <br />(i) Half Streets. Construction of half streets shall be allowed for minor and major <br />arterial roadways. <br />0) Maximum Length of a Block or Street Segment. Where no existing subdivision, golf <br />course or topographical constraints control, the block lengths shall not exceed lengths as <br />shown on the Conceptual Land Use Plan (Exhibit II -2) along major and minor arterials <br />and 1,400 feet along other streets. Where no existing subdivision, golf course or <br />topographical constraints control, the blocks shall not be less than 400 feet in length; <br />however, in cases where physical barriers or property ownership creates conditions <br />where it is appropriate that these standards be varied, the length may be increased or <br />decreased (through issuance of a variance with plat approval) to meet the existing <br />conditions having due regard for connecting streets, circulation of traffic and public <br />safety. <br />(k) Maximum Length of a Cul -De -Sac Street. A cul -de -sac street may be up to 1,400 <br />• feet long. The closed end shall have a turnaround bulb with an outside pavement <br />diameter of at least 80 feet and a right -of -way diameter of at least 100 feet. The length <br />-55- <br />