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

LADOT Installing Speed Monitors with Feedback to Signals

LADOT is installing speed feedback signage. Image via Fortel Traffic, Inc. website

A big part of the L.A. City Department of Transportation's Vision Zero effort is to rein in speeding. Speeding is among the primary causes of traffic deaths and fatalities. Speeding makes other problems worse.

LADOT and LAPD are clear on the diagnosis: speeding kills Angelenos. Their prescription is less clear. Chart via LADOT Vision Zero safety study
Speeding kills Angelenos. Chart via LADOT Vision Zero safety study
LADOT and LAPD are clear on the diagnosis: speeding kills Angelenos. Their prescription is less clear. Chart via LADOT Vision Zero safety study

In addition to in-roadway interventions including painted curb extensions, LADOT is installing 150 speed feedback signs on Vision Zero High Injury Network's 40 priority corridors. According to to LADOT engineer Tim Fremaux "about two dozen of these are installed and operational so far, in addition to the 175 or so we have around the city from previous installations."

A few of these signs come with a new wrinkle. Last week, LADOT General Manager Seleta Reynolds tweeted about a "new signal trick" in the city's arsenal against dangerous speeding.

https://twitter.com/seletajewel/status/859918418652217344

In selected locations, speed feedback signs are now linked to downstream traffic signals. When a driver breaks the law going more than five mph over the speed limit, the sign triggers the upcoming signal to turn yellow, then red. LADOT's Fremaux states that this feature is more effective when the specific locations are not made public, so Streetsblog L.A. is not revealing the location of the one that this writer visited last week.

The smart feedback sign product is called VCalm®VMS-SP, and is manufactured by Fortel Traffic Inc. The high tech speed signs are full of great data collection features (see video at Fortel website.) They inform DOTs when speeding is happening, what effects the sign is having, and can generate data for state-mandated 85th-percentile speed surveys. As far as LADOT and Fortel report, the city of L.A. is the first municipality to implement this new feature to trigger signal timing changes to curb speeding.

Stay in touch

Sign up for our free newsletter

More from Streetsblog Los Angeles

Incomplete Streets Part 2: in OC Caltrans Ignores Caltrans Policy on Bike and Pedestrian Needs

Caltrans has a policy requiring Complete Streets in its projects, but Caltrans Districts routinely ignore it

July 24, 2024

Supervisor Hahn and Councilmember Ricks-Oddie: “Pull the Plug” on Metro/Caltrans 91 Freeway Expansion in Long Beach

Supervisor Janice Hahn: “I think it’s pretty clear that we’re going to need to pull the plug" on planned mile-long $174 million 91 Freeway project

July 23, 2024

L.A. Street Vendors Celebrate Removal of No-Vending Restrictions in Huge Win Against City

The victory is the product of a decade-plus-long battle to legalize sidewalk vending on our city streets

July 23, 2024
See all posts