Rowena has seen a dramatic decrease in injury collisions since it was reconfigured on March 11, 2013. At the same time Los Angeles has seen a dramatic increase.

Rowena Avenue

3/11/2013 - 3/10/2017

Los Angeles

3/11/2013 - 3/10/2017

Injury Collisions
Down 21.5 %
Severe Injury Collisions
Down 33 %
Injury Collisions
up 8.5 %
Severe Injury Collisions
up 12 %
Injury Collisions
up 18 %
Independent Transportation Planner Report
Data collected from California Highway Patrol
Statewide Integrated Traffic Records System  (SWITRS)
Data Science Inc.

On September 29, 2016 the LA Times published an op/ed by two professional data scientists who independently reviewed the Rowena crash data:   "Despite the controversy, Silver Lake’s ‘road diet’ worked."


The data scientists reported:  "Improved safety for all road users...the primary goal of the project - has clearly been achieved." 

L.A Department of Transportation

LADOT Engineer Tim Fremaux speaking at the Rowena town hall September 14, 2015

Road Diets are keeping people safe across Los Angeles

A recently published study of Los Angeles road diets showed a 36% reduction in traffic injuries on average compared to the same roads prior to road diet implementation.  

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Three independent studies have all concluded the same thing.  Rowena is safer since it was reconfigured