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v v 1 'M _ _ 0 `'S vAsk <br />Seven thoroughfare types are proposed for the Transportation Master Plan. The City of San <br />Marcos supports cost-efficient design that follows Best Management Practices for safety <br />throughout the transportation network. Lane widths should be minimized to reduce <br />costs, slow traffic and improve roadway safety for all users. Typical interior lane widths are <br />recommended at 1 1 feet with exceptions adjacent to curb and gutter or parking facilities or <br />roadways with frequent bus operations. Street sections should be designed with interior lane <br />widths of 10 feet. <br />The National Association of City Transportation Officials' (NACTO) Urban Street Design <br />Guide details the toolbox and the tactics cities use to make streets safer, more livable and <br />more economically vibrant. NACTO design practices seek to provide communities with <br />streets and spaces where people can safely walk, bicycle, drive, take transit and socialize. <br />This Transportation Master Plan adopts these guidelines and will implement NACTO design <br />recommendations as the network continues to develop and grow. <br />To reduce the severity of crashes, Best Management Practices recommend narrower streets <br />#__I e that promote slower driving speeds. According to research, risk of pedestrian death is 10% at <br />` an impact speed of 23 mph. At 32 mph, the risk of death increases to 25% and doubles to 50% <br />at just 42 mph. Pedestrians struck by vehicles traveling at 58 mph have a 90% risk of death. <br />T 100% <br />W <br />*01 <br />10 20 30 40 50 60 <br />Impact Speed (mph) <br />MA <br />10 20 30 40 50 60 <br />Impact Speed (mph) <br />