have been popping up everywhere in the last few years.

Companies like Bird, Lime, and Ojo

have placed their e-scooters in over 100

cities and towns around the world.

And they're even more popular in the US

than bike-sharing programs,

according to the National Association

of City Transportation Officials.

But, while those bike-sharing programs seem

to have it all figured out,

dock-less e-scooters have hit some speed bumps

along the way.

The e-scooter premise is simple.

You use an app to find and unlock a scooter near you,

ride it where you need to go,

and then leave it there for the next person.

The company takes care of charging the battery

and making sure the scooters are where they need to be.

Pricing varies, but generally there is

an initial unlocking fee along with a per-minute fee.

Some other additional fees are possible,

like if you venture outside the scooter's "home zone."

The scooters are designed to tackle transportation

and congestion issues in towns and cities.

Sure, the scooters are a form of shared mobility

and are convenient and affordable,

but that doesn't mean they're perfect.

Pedestrians, cars, bikes, pretty much everyone

is trying to adapt to sharing the roads and sidewalks,

while riders are confused about where to use them

and what regulations to follow.

Sidewalk, bike lane, or road?

With traffic or against it?

And then there's the question of parking.

Without designated docking stations for e-scooters,

they can end up in a pile,

obstructing sidewalks and crosswalks.

It's not so much the scooters themselves

that are to blame,

but the people behind the handlebars

who choose to ignore the rules.

These aren't problems that can be easily ignored.

And parking issues aren't the biggest concern

when it comes to e-scooters.

Tarak Trivedi: There are definite dangers, including death.

I mean, we've seen a number of deaths already

since they've been introduced.

That's UCLA Health emergency physician

Tarak Trivedi.

After seeing so many patients with scooter-related injuries,

he decided to study them and publish the results.

Trivedi: So, anecdotally, some of the stories

that I've heard are:

I fell off. I don't know how.

The break didn't work appropriately.

The accelerator got stuck.

There was a pothole in the road that I missed.

I was riding, and the sidewalk was a little bit uneven,

and I sort of just tipped over.

Hit by cars,

of course, intoxication and not paying attention.

The Associated Press reported there were

11 deaths linked to e-scooters from the start of 2018

through June of 2019.

But that's a rough estimate,

since there's no official data available.

And that's not including the 1,500 injuries also reported

in that same time period.

Trivedi: Overall, we found 249 emergency-department visits

that were associated with an

electric-scooter use of some sort.

Some other results that we found interesting

were that almost no one was wearing a helmet.

Approximately 30% of our injured

patients actually had some sort of fracture,

and 40% of them had some sort of head injury.

Those stats are kind of alarming.

They should make helmets a requirement, right?

There's a lot of arguments

inside of required, mandatory-helmet laws.

On one hand, we know that helmets protect the skull

and brain. However, some cyclists

and cyclist-advocacy organizations

argue against mandatory-helmet laws,

saying that it makes people less likely

to use bicycles in general.

And the same applies to e-scooters.

Which means local governments have to do all they can

to keep riders safe.

And in some cities, that means no e-scooters at all.

New York City, for example,

has yet to install an e-scooter program

because of safety and infrastructure concerns.

But just across the Hudson River,

in the 1-square-mile city of Hoboken, New Jersey,

e-scooters are everywhere.

Hoboken has pilot e-scooter programs

with both Lime and Ojo

in hopes of addressing their lack of street space

and parking demands.

Ryan Sharp: The benefit of doing a pilot program

for six months is that it gives the city an opportunity

to test out the model of e-scooter sharing.

To put out surveys to the public, to get their feedback,

and to collect data to see how popular

or how much ridership is happening through this program.

Narrator: Pilot programs help these cities learn

what works, what doesn't,

and where they can make improvements,

like setting safety standards

and better educating scooter riders.

Sharp: Some of the major rules that everybody has to follow

includes no riding on sidewalks,

you must ride in the direction of traffic.

There's an age requirement,

you must be 18 years or older to ride.

Only one rider per scooter, so no tandem riding.

Narrator: Rules are posted on the scooters

on signs around the city

and reinforced in the app itself.

It's in the scooter company's best interest

to comply with all the local laws.

As the vehicles become more widespread,

cities like Washington, DC, and Atlanta

are imposing strict restrictions on their usage

or banning them completely.

Some of these polices may be the result

of rider misuse, like breaking local laws

and leaving scooters in all the wrong places.

But at least they're better for the environment, right?

Not quite.

In fact, compared to other transport options,

e-scooters are not as green and eco-friendly

as you might think.

A study published in the journal

Environmental Research Letters

found that a lot of greenhouse gases are created when

manufacturing and transporting the scooters.

In fact, scooters typically emit more greenhouse gases

than buses with high ridership and electric bikes.

But it doesn't look like they're going to go away

anytime soon.

They're convenient, easy, and, we have to admit, fun.

So how do you keep everyone safe

and not infuriate local residents

with sky-high piles of scooters?

It's a shared responsibility between the riders,

pedestrians, companies, and local governments.

Towns and cities need to make sure they designate

where scooters should be ridden

and keep them safe for everyone.

In Hoboken, local police are enforcing scooter rules

through citations and suspending

or even terminating accounts.

Meanwhile, companies need to make sure

that they are enforcing the rules

and that the scooters are not disruptive

to local residents.

As for the riders, they need to understand and acknowledge

they are operating a moving vehicle.

Trivedi: A number of people also came in intoxicated.

About 10% of our riders were actually under the legal age;

they were under 18 years of age.

Narrator: It's clear changes need to be made

to make e-scooters safer and less disruptive.

We don't really think about it now,

but before 1915, stop signs for cars didn't exist,

and the US had no uniform approach to street safety

until the mid-1920s.

Hopefully, it won't take that long to solve the issues

e-scooters present.

And if you're riding one, consider wearing a helmet.

Follow all the local rules, and maybe stick to areas

without many pedestrians or cars.

Don't leave it in the middle of the sidewalk.

And don't forget to enjoy the ride.

It, like, doesn't, whoa!