Brian Taylor, professor of urban planning, commented in a Vox story on the rapid proliferation of electric scooters in U.S. cities. While scooters could benefit the environment by replacing car trips, they might also discourage walking. “Some of those walk trips are likely to be taken away at the shorter end, and some of those car trips are those at the long end,” said Taylor, who also serves as director of the Institute of Transportation Studies at UCLA Luskin. Taylor said scooters could encourage the use of public transit by solving the so-called “last mile” problem. “There’s the West L.A. rail station that’s a 22-minute walk from me. … I took a scooter the other day, and it took me five minutes,” Taylor said.