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Transportation

The Technology That Could Stop Speeders in Their Tracks

Speed governor devices could help protect road users from motorists who defy posted limits. Why won’t US regulators demand them?

A speed limit sign in Los Angeles.

A speed limit sign in Los Angeles.

Photographer: Al Seib/Los Angeles Times

It’s a harrowing video, taken from a security camera in Los Angeles last week. At the outset, traffic flows normally through the four-way intersection at South La Brea and Slauson avenues in L.A.’s Windsor Hills neighborhood. Then a Mercedes erupts from the bottom of the screen, moving so fast that it registers as little more than a blur. The car barrels through a red light and strikes several other vehicles, which immediately burst into flames. 

Six people were killed, including a pregnant woman and her 11-month old son.