1 Comment

  1. The cost benefit with on 20mph seems to miss a couple of large factors:
    – STATS19 data show a long term accident rate fall of just under 2.5% pa. This would swamp the estimated reductions used
    – there is no account taken off the lost time from slower journeys. Using average journey length and how many taken with a modest increase in journey times shows that the accident reduction rate would need to be well over 100% to exceed the increased costs

    It is important to have a discussion about the numbers and the assumptions that lead to them.a suitable forum would support the democratic process

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