Lime Scooters

Jacob Anger, right, and Ty Nelson, both of Rochester, try out Lime Scooters for the first time Thursday night along Center Street. The electric-motorized scooters are activated with a mobile phone app and incur a $0.29 minute fee. (Ken Klotzbach /

LOS ANGELES — Like scores of tourists who zip through Santa Monica on e-scooters every day, 21-year-old Elliot Stephenson had no idea there was a fence around the pier until he hit it.

"I was cruising down the hill and lost power," the bewildered visitor from New Zealand said as he wheeled his just-rented Lime back toward Ocean Avenue on a recent Thursday afternoon. "(The motor) just stopped."

Cities across California have followed Santa Monica's lead in limiting the type and number of micro-mobility devices that move inside their borders, and how those vehicles are deployed. Now, many are testing the limits of a technology called geofencing to remotely enforce speed, parking restrictions and even dead zones.

"Even getting the companies to acknowledge that they were capable of geofencing was initially an issue," said Cynthia Rose, director of Santa Monica Spoke, a bike and pedestrian advocacy group, and a member of the advisory committee that helped write the city's scooter rules. "(Now) it's written into their system. When the scooter approaches that area, they slow down and the motor no longer works."

Eighteen months ago, that application seemed far-fetched. Today it's so common that Lime keeps employees on hand to explain it and to relocate the dozens of scooters abandoned in frustration when they stop.

"We have dedicated people to make sure we're in compliance," said Stephen Lee, a Lime operations manager. "The rules are changing a lot."

Indeed, where fences are and what they do is constantly shifting, the product of agreements that, while often shaped by city ordinance, are designed and negotiated behind closed doors.

"These aren't on the books," said Juan Matute, deputy director of the UCLA Institute of Transportation Studies. "Given that what the companies are asked to do changes week to week, it can be hard for an individual to keep up with what's permitted and what each company's restrictions are."

While cities around the world have begun to experiment with geofencing, those on L.A.'s Westside are on the cutting edge. But with so many companies operating with different rules in contiguous municipalities, the consequences are sometimes perplexing.

The city of Beverly Hills banned scooters in July 2018, but that ban feels different on a Lime than it does on a Jump or a Bird.

A Jump rider crossing Whitworth Drive at full throttle on Robertson Boulevard will find the scooter slowing to the Beverly Hills speed limit of 5 mph from the L.A. city limit of 15, while a Bird will stop completely at the border. A Lime can cruise through the city at 15 mph, though, like the others, it won't be able to end the trip there. Those who abandon their still-active scooters inside city limits can face fines.

"We've had a hard time understanding the geofencing agreements and how they're put it in place," said Eli Kaufman, executive director of LA Bike, which has begun to advocate for scooter riders. "There's no didactic signage to let scooter riders know, there's nothing on any of the micro-mobility websites that says this."

Many companies do designate "red zones" on their service maps, but what actually happens to the scooter inside those boundaries often isn't clear until a rider reaches one, experts said.

"It's evolving," said Maurice Henderson, director of government partnerships at Bird. "Cities are trying to learn from each other. Some are more sophisticated about this conversation than others."

Advocates say geofencing is more efficient than law enforcement at preventing accidents, and that it's less punitive than the fines levied against those who ride on the sidewalk, an infraction that technology isn't accurate enough to prevent.

The GPS on a scooter is what data scientists call "noisy," a bit like a fuzzy radio signal. In ideal conditions, it can guess its location within about 16 feet. But that guess can jump moment to moment, adding a layer of frustration to barriers that, by design, appear suddenly out of thin air.

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