It’s Part II of our two-part series on traffic congestion! This time: why adding more lanes doesn’t make congestion go away.Framing traffic congestion as primarily a “street capacity” problem has led practitioners to seek solutions by adding more lanes and miles of streets and roads. This has the unintended (but predictable) consequence of generating more traffic. This phenomenon is exceedingly well known but continually ignored among the professionals who can do anything about it. Let’s talk about it.Links:Want to learn more on this episode’s topic? Here’s just a short list of interesting resources:Traffic Jam? Blame 'Induced Demand.' - BloombergTransportation For America More highways, more driving, more emissions: Explaining "induced demand" - Transportation For AmericaThe Fundamental, Global Law of Road Congestion (from City Observatory)Reducing Traffic or Inducing It?What's Up With That: Building Bigger Roads Actually Makes Traffic Worse | WIREDInduced Demand: An Axiom of Biology — Human TransitQuestioning Congestion Costs | City ObservatoryInduced demand - WikipediaReducing congestion: Katy didn't | City ObservatoryReduced demand is just as important as induced demand | CNUThe Problem with HOV LanesOpinion: Filth, Automobiles, and Our Misguided Obsession With TrafficCalculating induced demand at the Rose Quarter | City ObservatoryGenerated Traffic and Induced Travel – VPTI (PDF)Your Navigation App Is Making Traffic Unmanageable | Institute of Transportation StudiesSHIFT CalculatorBook: Walkable City by Jeff Speck (public library)---Check us out on Twitter and

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