Induced demand: Why adding more roads does not fix traffic congestion

Have you heard about 'induced demand'?
Derya Ozdemir

Consider the last time you got stuck in traffic. Did you imagine how much faster you could go if you had a wider lane or a completely new highway mysteriously free of cars? It's understandable to believe that this would be beneficial. However, increasing road space does not reduce traffic congestion, according to emerging research. 

This actually has a relatively simple reason. If additional highway space is built, more people who do not already commute by car will choose to do so. This wide area immediately fills up, and you are back to crawling through traffic at a mind-numbingly slow speed. This effect, known as "induced demand," has been repeatedly demonstrated to occur. In this video by the YouTube channel Adam Something, you can learn why building larger roads actually makes the traffic congestion problem even worse in detail. If you're curious to know more, make sure you watch the video embedded above, and as always, enjoy. 

 

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