I am not opposed to a congestion charge as was in place temporarily. This means people who really need to make a given journey can pay and still make it, but there is a fairly hard nudge to do it differently. I think this has been highly effective in London and would be a good fit for Oxford.
The reasons filters are a bad idea in the context this is being done in my view are thus:
- If you get it wrong it's not just a case of having to go online later and chuck a tenner in for the C-charge, instead you are fined. This makes things a lot more stressful.
- It is grossly unfair, basically just buying votes, for Oxfordshire residents to have passes to use these gates but outsiders not. All should be charged the same, with the sole exception of those who live actually inside a C-charge area.
- If people are forced to make longer journeys to reach given places by car because they cannot simply pay to pass a filter/enter the C-charge zone because to them that car use is essential, then carbon emissions are increased.
I don't think I would be too bothered if a hybrid scheme was applied, i.e. that passing a filter cost £10 per day, say. It's the fining thing I don't find acceptable, primarily.
There are similarities to bus gates, I suppose, but these are largely used in different contexts, e.g. shortcuts between estates, rather than to impose on longer distance traffic.