WTransportation engineering
WBicycle transportation planning and engineering
WCanadian Capacity Guide For Signalized Intersections
WCrush load
WEuler spiral
WFloodway (road)
WFundamental diagram of traffic flow
WGEH statistic
WGeometric design of roads
WGrade (slope)
WHighway engineering
WInstitute of Transportation Engineers
WIntelligent transportation system
WIRIS (transportation software)
WLast mile (transportation)
WManual on Uniform Traffic Control Devices
WParking guidance and information
WPedestrian scramble
WRail transport
WRed light camera
WSimulation of Urban MObility
WSkyBitz
WSubgrade
WSuicide barrier
WThree-phase traffic theory
WTrack transition curve
WTraffic barrier
WTraffic conflict
WTraffic congestion reconstruction with Kerner's three-phase theory
WTraffic enforcement camera
WTraffic engineering (transportation)
WTrailer skirt
WTrailer tail