[saimiam]

What would this new system look like that doesn’t involve the trade offs between having cabs on demand if you need them and having a walkable city if you don’t that the person you replied to spoke about?

Uber and friends have indeed democratised giving rides to people - though where I am, a few rich people have bought numerous cars and have daily wagers driving them finding fares via Uber - but at the cost of far more cabs on the road.

Others, notably motorbikes and scooter ride aggregators have emerged to replicate Uber. These motorbike cabs are even harder to regulate than cabs.

Uber, imo, has broken the equilibrium that existed before.

[kelnos]

You make the medallions non-transferrable/rentable, and use a lottery system to grant them.

Uber has absolutely increased traffic levels in the places where they operate. I don't personally think it's to a level that is actually a problem, but I also avoid driving myself around in cities whenever I can, so I may not be the best at observing this.