Fixing the Flood of Congestion at its Source

In pursuit of an honest conversation about congestion, Charles Marohn produces a comparison between roads and stormwater infrastructure.

2 minute read

October 20, 2015, 2:00 PM PDT

By James Brasuell @CasualBrasuell


Charles Marohn takes inspiration from U.S. Senator Chris Murphy (D-Connecticut), who shared his thoughts about commuting via Twitter and a live streaming event last week.

Looking for solutions to congestion, Senator Murphy produced the following, via Twitter: "We're running our transportation system on the same amt of money as 1993. That's not going to help us with the big projects we need #FedUp."

Marohn provides a critical response of that take, which he says is straight from the Infrastructure Cult's talking point memo. Marohn counters: "Federal gas tax receipts in 1993 were $19.6 billion. By 2013, that had climbed to $29.2 billion. To this, Congress annually adds billions more. Sure, the gas tax has not been increased since 1993, but let's not pretend that is the fundamental cause of our transportation woes or -- more importantly – that what we 'need' is more 'big projects.'"

Then Marohn shifts to a description of the common stormwater system, which collects rainwater into larger and larger streams. Planners and engineers have solved the problem of the flooding often produced by such a system by addressing the flow of rainwater at the source: "We don't allow people to fill their wetlands. We require developers to retain their runoff on site. We build retention systems to hold back runoff and feed stormwater into the natural systems more slowly so flooding does not occur. We take these steps and others at the source to mitigate the cumulative, negative impacts of stormwater runoff. Namely: flooding."

The description of stormwater systems is thus compared to the road system, but in this case, planners and engineers have yet to address the source of the problem in finding solutions for congestion:

"For automobile flooding (congestion), the only way to deal with it and still have a successful economy is to address it at the source. We need to absorb those trips locally before they become a flood. Instead of building lanes, we need to be building corner stores. We need local economic ecosystems that create jobs, opportunity and destinations for people as an alternative to those they can only get to by driving."

Monday, October 19, 2015 in Strong Towns

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I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

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