[xnzakg]

One way to prevent congestion would be to instead of paying for the distance traveled, you simply paid for the time the car is on the road, giving a financial incentive to send the car outside of rush hours. Would probably also cause people to use alternative routes rather than everyone trying to use the shortest one when is congested.

[CydeWeys]

Yes, this is one of the main solutions proposed by the linked article.