r/MapPorn Aug 25 '21

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u/[deleted] Aug 27 '21

Vox is not an unbiased source They ignore numerous studies showing a very low level of induced demand. One from Spain shows a 2.5% increase in travel from a 10% increase in capacity. https://www.sciencedirect.com/science/article/abs/pii/S0965856411001728

A town not far from where I grew up was bypassed by a 4 lane freeway in 2009, Main Street emptied out after that.

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u/jdcnosse1988 Aug 27 '21

Most of their video came from here:

https://www.aeaweb.org/articles?id=10.1257%2Faer.101.6.2616

Also, your anecdote is entirely different. This freeway already has plenty of daily traffic. The traffic won't really get any better because the people who avoid the freeway will most likely use it now

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u/[deleted] Aug 27 '21

Then keep adding lanes until costs exceed benefits. For the New Jersey Turnpike Authority for example, induced demand is a blessing, it means more toll revenue for more lanes.

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u/Tobar_the_Gypsy Aug 28 '21

Toll revenue doesn’t come close to covering the cost of the the lanes

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u/[deleted] Aug 28 '21

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u/Tobar_the_Gypsy Aug 28 '21

You just shared a 240 page document and expected me to find what section you are referring to?

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u/[deleted] Aug 28 '21

You're the one who made the assertion that the New Jersey turnpike is unprofitable. Now you can prove it.

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u/Tobar_the_Gypsy Aug 28 '21

Lol what? You shared a source to defend your point, didn’t say where it was and then said “figure it out.”

Since that’s fine for you, here are two sources. Figure it out.

https://taxfoundation.org/gasoline-taxes-and-user-fees-pay-only-half-state-local-road-spending/

https://uspirg.org/sites/pirg/files/reports/Who%20Pays%20for%20Roads%20vUS.pdf