Vehicle Travel Lane Widths <br />Design Guidelines <br />1) Travel lane width is a function of the use of <br />the lane, the type of vehicle served, and the <br />speed of the vehicle. All of these factors, as well <br />as whether the lane is an "inside" lane or an <br />"outside" lane should be considered in deter- <br />mining travel lane width. <br />2) Lane widths should be wider on higher-speed <br />streets than on lower-speed streets. <br />3) Outside lanes may require a wider width to <br />accommodate turning trucks and buses, and to <br />reduce the effects of adjacent obstructions like <br />parked cars. If a bicycle lane is present, outside <br />lanes need to be wide enough to provide for <br />safety and comfort of bicyclists adjacent to those <br />lanes. <br />4) Typical travel lane widths: <br />a) Major Arterials. Travel lanes are typically <br />12' wide on major arterial streets. (See Figure <br />37 on page 94). <br />b) Minor Arterials. Travel lanes are typically <br />11' wide on minor arterial streets. (See <br />Figures 38 and 39 on page 96). <br />c) Major Collectors. Travel lane widths are <br />typically 11' wide on Major Collector streets, <br />although wider lane widths may be required <br />for industrial areas or other areas with signifi- <br />cant amounts of large truck traffic. (See <br />Figures 41 and 42 on page 98). <br />d) Neighborhood Collectors. Typical travel <br />lane widths on Neighborhood Collector <br />streets range from 10' to 14'. The design <br />width shall be determined by the use of the <br />street: narrower lane widths are permitted on <br />streets used only by motor vehicles; wider <br />lane widths may be needed on streets which <br />are used by a mix of motor vehicles, bicycles, <br />and/or transit vehicles. (See Figures 44 <br />through 52 on pages 100 through 105). <br />Vehicle Travel Lane Width <br />Design Standards <br />1) The minimum travel lane width on Major and <br />Minor Arterial streets is 11'. <br />2) The minimum travel lane width on Major Collector <br />and Neighborhood Collector streets is 10'. <br />49 <br />