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<br /> <br />MINIMUM STREET DESIGN STANDARDS <br /> <br /> <br />a.Pavement Width – The minimum pavement width would be 20 feet based <br />upon two 10-foot travel lanes. The minimum travel lane width of 10 feet is <br />based upon the urban service providers dependent on the street system <br />including emergency responders, public transit, and garbage and recycling <br />services. Many of the vehicles providing these services measure 9-1/2 feet <br />from mirror to mirror. <br /> <br /> <br />b.Sidewalk - The minimum standard is a sidewalk on at least one side of every <br />new or reconstructed street. The sidewalk would be a hard stable surface, <br />physically separated from the travel lane. This is consistent with the standards <br />of the Access Board, a federal agency with the authority and responsibility to <br />develop accessibility standards under the Americans with Disabilities Act. <br />The minimum unobstructed width of a sidewalk is five feet. This provides <br />sufficient room for two pedestrians to walk side by side or to pass one <br />another. This is one foot wider than the minimum of four feet established by <br />the Access Board. <br /> <br /> <br />c.Traffic Calming – Crest, Storey and Friendly are the primary routes for <br />emergency responders. Therefore, the traffic calming options for the three <br />streets include: <br /> <br />Roundabouts Traffic Circles Raised Crosswalks <br />Curb Extensions Parking Bays Chicanes <br />Raised Medians Pavement Surface Angled Slow <br />Modification Point with Median <br />Landscaped Midblock Neckdown Speed Tables <br />Roadway <br /> <br /> <br />d.Curbless Street – Although fairly simple in design, a curb provides multiple <br />functions for a street including conveyance of drainage, stability to the edge <br />of pavement, physical barrier separating the street from sidewalk and a <br />vertical surface necessary for a street sweeper to be effective. In developing a <br />curbless design, these multiple functions are addressed by numerous design <br />elements including a drainage swale with an underlying perforated pipe, a <br />flush concrete edge, and a setback sidewalk. The effectiveness of a street <br />sweeper cannot be addressed by an additional design feature in a curbless <br />street design. <br />Page 25 of 27 <br />