Skip to Content
Streetsblog Los Angeles home
Streetsblog Los Angeles home
Log In
Caltrans

Caltrans Still Claims 5 Freeway Widening Reduces Congestion, Improves Air

How road widening works. Cartoon via @BrentToderian Twitter

Caltrans District 7 is at it again. Similar to a misleading 2016 video, in this new promotional video Caltrans District 7 inexplicably proclaims that widening the 5 Freeway will (starting minute 3:30) "reduce congestion and improve air quality." The $1.9-billion widening is funded by Metro's Measure R.

It appears that Caltrans actually believes the results of studies based on the discredited Level of Service metrics. Freeway construction and expansion projects keep promising to take congestion off of L.A. County roads. After spending hundreds of billions of dollars, those roads remain congested, the air is foul, kids get asthma, and there is plenty of noise, disconnected neighborhoods, obesity, and other problems - all accompanied by budget-breaking infrastructure maintenance costs passed along to California's children.

See this earlier SBLA article outlining the well-known flaws inherent in Caltrans' outdated self-defeating thinking. Since the 1960s it has been clear that adding capacity to roads does not reduce congestion. Some day Caltrans might get the memo.

Stay in touch

Sign up for our free newsletter

More from Streetsblog Los Angeles

Friday Round-Up: Pico Blvd., Koreatown Circle, and SGV E-Bikes

LADOT installs pedestrian safety upgrades at deadly Ktown intersection. Apply for SGV e-bike vouchers by Monday. LADOT plans major safety upgrades on Pico Boulevard.

November 14, 2025

Friday’s Headlines

ICE, rain, Measure HLA, L.A. River path, 5 Freeway widening, Koreatown, LAX, South Gate, Glendale, car-nage and more

November 14, 2025

City Scrapes Grassroots Koreatown Crosswalks, Plans To Replace

The city will replace guerilla crosswalks with an interim traffic circle and new crosswalks. The delayed permanent traffic circle is expected to installed next year.

November 12, 2025
See all posts