So self driving car brands are currently in the process of offering subscription based self driving features.
Soon these subscriptions will be cheap enough for everybody to abandon public transport and get into their self driving cars instead.
This means that everybody will be in their cars and it will create the biggest traffic jam in human history!
And finally, self-driving cars will be totally safe and able to drive completely unsupervised! While standing still in traffic going an average of 5 km/h…
It will be beautiful (/s)
I suppose they could do something like the toll roads, where you drive through a coil and trigger a wireless badge. Everytime you trigger it you will pay a certain fee. If you don’t have a badge, your license plate is recorded and you get sent a fine. Similar to speed cameras you already have.