In December 2017, various newspapers published articles with variations of "Streets where more people died AFTER 20mph limit came in ...but councillors say it's too expensive to scrap it". They had picked up on an article in the Bath Chronicle about a report submitted by a Bath and North East Somerset Council officer to their Scrutiny Committee in July 2017. In fact the committee rejected the report and took no action as a result of it.

In fact the report did NOT include any details of "deaths" and only compared "killer or seriously injured" across various wards. In doing so it was comparing very small numbers such as 0.8 and 0,6 for previous and after periods. Any statistician will tell you that such comparisons have no statistical significance and are heavily influence by the randomness of crashes rather than representing any trends.

However we did a thorough analysis of the results in the report and these show that :-

20 Questions About 20’s Plenty Answered

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What happened in Bath? Did deaths increase?

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Many people think that driving at 20mph lowers fuel economy. Yet research shows that for many cars a steady 20mph is the most efficient speed if you can keep it steady. Indeed at 20mph many cars will achieve fuel consumption better than 90mpg. But what changes things is in an urban environment where you are consistently slowing down for obstacles, lights, junction and congestion and then having to speed up again.

Here we explore the engineering principle behind the energy that gets used by a motor vehicle when moving.

You may become aware of a headline in the papers today with variations of "Streets where more people died AFTER 20mph limit came in ...but councillors say it's too expensive to scrap it".

These reports are bogus and just like the famous Freddie Starr headline are untrue.

Councillors and council officers don’t always tell the truth on 20mph limits. Here we bust some more of the common myths. See also part 1 http://www.20splenty.org/council_myths about A and B roads, current average speeds over 24mph, unsupportive police and collision history.

Here we "bust" all the 20mph myths that opponents so often use as an argument against implementing an appropriate limit for residential, urban and village streets