How Highway Expansion Worsens Traffic π§
Expanding highways often worsens traffic rather than easing it. Learn why in this video. Subscribe for more insights!

Vox
2.2M views β’ Feb 12, 2021

About this video
Expanding highways doesn't do what you think it does.
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Big, expensive highway expansion projects are the source of a lot US transportation funding βΒ but they aren't a silver bullet for congestion relief. In communities that were built for cars, solving traffic problems requires much more holistic problem-solving.
At 1:00, we show a bar graph of travel times on the Katy Freeway that was originally put together by City Observatory, which has covered the Katy Freeway expansion project at length:
https://cityobservatory.org/reducing-congestion-katy-didnt/
This video was based in large part on research by Gilles Duranton and Matthew A. Turner:
https://www.aeaweb.org/articles?id=10.1257/aer.101.6.2616
For more reading on induced demand:
https://www.wired.com/2014/06/wuwt-traffic-induced-demand/
https://www.bloomberg.com/news/articles/2018-09-06/traffic-jam-blame-induced-demand?sref=PxYB8Mnq
For Kyle Shelton's work on urbanism:
https://kinder.rice.edu/urban-edge/author/541
Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com.
Watch our full video catalog: http://goo.gl/IZONyE
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Or Twitter: http://goo.gl/XFrZ5H
Subscribe and turn on notifications (π ) so you don't miss any videos: http://goo.gl/0bsAjO
Big, expensive highway expansion projects are the source of a lot US transportation funding βΒ but they aren't a silver bullet for congestion relief. In communities that were built for cars, solving traffic problems requires much more holistic problem-solving.
At 1:00, we show a bar graph of travel times on the Katy Freeway that was originally put together by City Observatory, which has covered the Katy Freeway expansion project at length:
https://cityobservatory.org/reducing-congestion-katy-didnt/
This video was based in large part on research by Gilles Duranton and Matthew A. Turner:
https://www.aeaweb.org/articles?id=10.1257/aer.101.6.2616
For more reading on induced demand:
https://www.wired.com/2014/06/wuwt-traffic-induced-demand/
https://www.bloomberg.com/news/articles/2018-09-06/traffic-jam-blame-induced-demand?sref=PxYB8Mnq
For Kyle Shelton's work on urbanism:
https://kinder.rice.edu/urban-edge/author/541
Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com.
Watch our full video catalog: http://goo.gl/IZONyE
Follow Vox on Facebook: http://goo.gl/U2g06o
Or Twitter: http://goo.gl/XFrZ5H
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Video Information
Views
2.2M
Likes
56.4K
Duration
6:05
Published
Feb 12, 2021
User Reviews
4.8
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