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Figure 2 -12: Widths should be <br />consistent with traffic needs. <br />Figure 2 -13: Overdesign: a too - <br />wide street encourages faster <br />speeds and is unattractive. <br />a <br />The selection of appropriate pavement widths must account for <br />probable peak traffic volume, parking needs and controls, likely <br />vehicle speeds, and limitations imposed by sight distances, cli- <br />mate, terrain, and maintenance requirements. Designers should <br />select the minimum width that will reasonably satisfy all real- <br />istic needs, thereby minimizing construction and average annual <br />maintenance costs. The tendency of many communities to equate <br />wider streets with better streets and to design traffic and parking <br />lanes as though the street were a "microfreeway" is a highly <br />questionable practice. Certainly the provision of two 11- or 12 -foot <br />clear traffic lanes is an open invitation to increased traffic speeds <br />(Figure 2 -131. <br />Page 13 <br />