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W



walkway
A hard-surfaced transportation facility intended and suitable for use by pedestrians, including persons using wheelchairs; walkways include sidewalks, surfaced portions of accessways, paths and paved shoulders.
Warren truss
A triangular truss with sloping members (and no vertical members) between the top and bottom chords, forming the letter "W."
web
The portion of a bridge beam located between and connected to the flanges.
web members
The intermediate members of a bridge truss, not including the end posts, usually vertically or inclined.
welded joint
A joint in which the assembled elements and members are united through fusion of metal.
welded rail
The standard unit of track structure providing safer, seamless service.
wetlands
Those areas that are inundated or saturated by surface water or ground water at a frequency or duration sufficient to support, and under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions.
wetland and wildlife conservation banks
Large land areas purchased for wetland and wildlife conservation to mitigate transportation impacts on a regional basis.
wide outside lane
A wider than normal curbside travel lane that is provided for ease of bicycle operation where there is insufficient room for a bike lane or shoulder bikeway.
women's business enterprise (WBE)
A business owned and operated by one or more women.