Southwest Trafficway connects Downtown Kansas City to Westport and Country Club Plaza. Left turns are prohibited at nearly every intersection by discouraging local traffic while reducing delays due to vehicles waiting to turn left.
There was once a pedestrian tunnel under Southwest Trafficway at 40th Terrace, but it was removed as a blighted "dark alley" as part of the construction of the current intersection. In 1998, a team from UMKC analyzed the entirety of Southwest Trafficway and forwarded several proposals which would facilitate pedestrian traffic where the trafficway currently disrupts Westport, including moving the trafficway underground and planting a park at the surface.
- Tyler Antrup; Aaron Baumgarden; Alex Cochran; Mike Goodman; Ian Masterton; Zach Schmitz; Matt Wright (1998). "Southwest Trafficway Vision Plan" (PDF). University of Missouri - Kansas City Department of Urban Planning + Design. Retrieved 15 April 2012.