A thread on the latest research into LTNs – widely promoted but narrowly interpreted by LTN advocates – here’s an alternative take on what it shows. Let’s start the data itself rather than the averages. The following all appear in the research – what can they tell us?
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A lot of roads see increased traffic post LTNs, especially boundaries, but a fair number of internals too. By relying on overall averages across all of the LTNs covered, this is easily missed. At the very least it suggests that lots of LTNs may not be working: