Mayor David Briley has some ideas on how to make electric scooters work in Nashville.

Briley sounded off on scooters in an interview on CNN Saturday morning, just more than two weeks after he said he would pursue a ban on scooters if companies cannot address safety concerns.

"What we're seeing here in Nashville is that the risk and consequences of having scooters far outweigh the benefits," Briley said to anchor Michael Smerconish, discussing the serious injuries and the death of Brady Gaulke, 26, who was struck by a car while riding a scooter.

There are currently more than 4,000 scooters in Nashville and they are often left in the middle of sidewalks, the mayor said, creating obstacles for people trying to navigate around the city.

”That is really an imposition we really can’t tolerate here in Nashville," he said.

But, Briley said scooters in Nashville are likely not to go away.

"I don't think that in the end we'll be without electric scooters," he said. "But companies have to come up with a regulatory scheme to make it work."

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Briley: Scooter riders need access to helmets, company reps

Then Briley offered some ideas including physical locations for riders to pick-up and drop-off scooters and where they would have access to helmets.

Thomas Mulgrew, a spokesperson for the mayor, said to the Tennessean Saturday that the administration has met with Bird, Lyft, Lime and Spin, and that talks with all seven companies that currently operate in the city are ongoing.

He elaborated on the mayor's remarks on a physical location for scooters, saying that among many options discussed are storefronts where riders will have to rent scooters from staff, rather than picking them off the street.

Users will be given helmet at the storefronts, Mulgrew said.

Other ideas include reducing fleet sizes, limiting the number of operators and an RFP process to select which scooters companies can operate in the city.

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Smerconish showed Briley a tweet that said "Scooters = Darwinism at its best" and asked for his thoughts.

“People are responsible for their own decision to hop on one,” Briley said. “But government has some obligation to set some regulations.”

He said people hop on scooters near the bars "when judgement is not great," and where "the consequences has been deadly in our town."

Nashville, the mayor said, is a “city built around a car.” The infrastructure isn’t at the level to properly accommodate bike lanes and greenways.

“(Scooters) can fit in as part of the overall transportation network we have,” Briley said. “But the way it is operating right now in Nashville … we have too much risk with it.”

“We have work to do in the core of our city to make it more bike and pedestrian friendly.”

Briley is seeking reelection in the August mayoral race. He faces three major challengers — state Rep. John Ray Clemmons, Council member John Cooper and retired Vanderbilt professor Carol Swain — who have all also expressed that scooters in Nashville are not working.

Yihyun Jeong covers politics in Nashville for USA TODAY NETWORK - TENNESSEE. Reach her at yjeong@tennessean.com and follow her on Twitter @yihyun_jeong.