> TLDR, UK road users pay for far more than the road network.
Right, but driving has far more externalities than just the cost of the roads. For example:
> Results suggest that each kilometer driven by car incurs an external cost of €0.11, while cycling and walking represent benefits of €0.18 and €0.37 per kilometer. Extrapolated to the total number of passenger kilometers driven, cycled or walked in the European Union, the cost of automobility is about €500 billion per year. Due to positive health effects, cycling is an external benefit worth €24 billion per year and walking €66 billion per year.
Right, but driving has far more externalities than just the cost of the roads. For example:
> Results suggest that each kilometer driven by car incurs an external cost of €0.11, while cycling and walking represent benefits of €0.18 and €0.37 per kilometer. Extrapolated to the total number of passenger kilometers driven, cycled or walked in the European Union, the cost of automobility is about €500 billion per year. Due to positive health effects, cycling is an external benefit worth €24 billion per year and walking €66 billion per year.
From "The Social Cost of Automobility, Cycling and Walking in the European Union", https://www.sciencedirect.com/science/article/abs/pii/S09218... (which I heard about from a CityNerd video https://www.youtube.com/watch?v=qp75-46PnMY )