> it would never happen, but ideally toll roads would be dynamically priced such that the average speed is always within 10% of the speed limit. congestion fixed.

"Good news! Surge pricing is in effect, and today your commute will cost you twice the usual price!"

People who can defer traveling to avoid traffic jams and congestion already tend to do so. Sitting in traffic is boring, stressful, and a waste of time and money. People who don’t have a good reason not to.

Buses are great! Road commuting is not much of a thing where I live, so what do I know, but the simplest way to mitigate the problem that poor people can't use a toll road is to put buses on it.

Minnesota experimented with throttling freeway entrances based on congestion, not even charging money, and drivers response was clear: they'd rather sit in traffic.

I didnt realize there are still tollroads that are not dynamically priced?! haven’t seen one in a loooong time

There are tons of express lanes in my metro (DFW) that are dynamically priced to try and achieve a minimum speed of 55 mph

There are toll roads (or lanes) with dynamic pricing attempting to achieve something like this. They exist.

People already driving generally aren't likely to change their destination, and all the traffic headed toward the dynamically priced toll road still needs to be diverted in a way that they will reach wherever they were going.

You aren't going to change congestion unless you fix the balance between throughput and volume. Dynamic pricing doesn't improve throughput, and it doesn't decrease volume- it just forces some of that volume onto less well equipped roads.

demand for transport is not that elastic though

That's terrible and will be gamed to maximize revenue in no time flat.