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

portrait of professional woman

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

Get top-rated, practical training

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Washington

Washington State’s Parking Reform Law Could Unlock ‘Countless’ Acres for New Housing

A law that limits how much parking cities can require for residential amd commercial developments could lead to a construction boom.

May 1 - Streetsblog USA

Bluebird sitting on branch of green bush.

Wildlife Rebounds After the Eaton Fire

Following the devastation of the Eaton Fire, the return of wildlife and the regrowth of native plants are offering powerful signs of resilience and renewal.

May 1 - AP News

1984 Olympics

LA to Replace Inglewood Light Rail Project With Bus Shuttles

LA Metro says the change is in response to community engagement and that the new design will be ready before the 2028 Olympic Games.

May 1 - Newsweek

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.