A Great Big Freeway — Thanks to Induced Demand - StreetsBlog USA

Los Angeles is getting what it paid for when it widened 10 miles of its most infamous freeways — another lane of traffic.

The extra lane of the I-405 between the 10 and the 101 freeways that opened in May, 2014, to supposedly alleviate congestion actually ended up adding a minute of travel time for drivers of the 10-mile stretch — and new data shows congestion is even worse.

The $1.6-billion infrastructure investment, known as the I-405 Sepulveda Pass Improvement Project, still resembles the parking lot at a Guns & Roses concert. Average commuting times through the Sepulveda Pass in both directions have gotten even longer in the last four years, according to data analyzed by the traffic analysis film INRIX from 2015 to 2019.

The most frustrating delays occurred during the afternoon rush when SoCal drivers heading north between 3 and 4 pm crawled along the I-405 at 19 miles per hour this year, instead of the jaunty 28 miles per hour they drove in 2015. That’s led to a 50-percent increase in travel time, from 23 minutes through the Sepulveda Pass in 2015 to 34 minutes this year.

The 405 isn’t the only SoCal freeway experiencing grinding delays. Rush hour speeds have slowed on 31 of 52 LA-area highways in the past four years, according to USC’s outlet Crosstown.

Read the full article here: https://usa.streetsblog.org/2019/05/08/l-a-really-is-a-great-big-freeway-thanks-to-induced-demand/