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Simon
Ex Police TMO. Road Safety Consultant. “We owe almost all our knowledge not to those who have agreed, but to those who have differed”. (C C Colton 1780 - 1832)
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Simon 11m
Whilst agreeing that the primary focus, particulary in terms of enforcement, should be elsewhere, majority of evidence from speed limit reductions in the EU does show a reduction in KSIs. The recent change in rural speed limits (now abandoned) in France being a case on point.
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Simon 5h
Much depends on location and suitability of the limit. The evidence is mixed, although majority suggests a reduction. The recent reduction in rural speed limit in France did result in lower KSIs, the raising of the NSL for HGVs on UK roads did not result in any KSI increase.
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Simon retweeted
Ben Barton 19h
I’ve been watching for three decades, DECADES, and that was easily in the top five of most boring F1 races I’ve ever seen. The track sucks, the current power units suck, and the penalty driven rules system sucks the most. It’s a joke. So far from what I fell in love with.
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Matt Bishop 19h
Whether you agree with or not, the fact that today’s caused him to write this, despite his being a man who loves with heart & soul, tells you all you need to know about how urgent it is that F1 reinvents itself not only rapidly but radically too.
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RPU - Surrey Police 24h
Replying to @Cruisette1
We see less collisions since the smart motorway as there is less congestion with an extra lane. The problem is the drivers not the motorway. What can be done about it? Well that get’s a more difficukt to answer. More prosecutions? Tougher penalties?
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Simon 17h
Replying to @baldie77 @surreylive
Collisions happen on all motorways. They are only four options to address ever increasing by traffic levels on motorways, smart motorways being one. Which would you advocate?
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Simon 18h
No, the enforcement camera is not activated until one minute after any lower mandatory speed limit has been displayed.
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Think Bike 19h
Need this action on all flights, trains, buses etc.
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Evening Standard 18h
76 per cent of men in prison in England and Wales had an absent father
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Simon 18h
Absolutely agree, we only contribute 1% of all global emissions, so whatever we do makes little real difference, but the science of reducing speed limits to reduce emissions is sound.
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Simon 18h
The reduced emissions that result from a reduction in speed more than outweigh this. Reducing the speed limit also reduces the duration and amount of acceleration in fluctuating traffic conditions. A 50mph limit though has no impact on HGV emissions.
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Simon 20h
Which is the primary reason for the KSI reductions. There is no question though, that raising the NSL would increase KSI frequency and severity, but bring some benefit. All speed limits are a balance of mobility/economic cost/safety (otherwise we’d have a 20mph motorway limit).
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Simon 20h
‘Stupid’, insofar as driving whilst monitoring a vehicles speed is clearly too onerous a task for some. Keep apologising for the inept and incompetent though. You have an impressive track record in doing so.
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Simon 21h
> whilst others (vehicle design, braking distances, driver ability, reaction times, emergency medical care etc) remain the same. The result would be an increase in both RTC frequency and severity, as well as emissions. Primarily because of emissions, it isn’t going to happen.
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Simon 21h
There is an economic case, though its marginal. Braking and vehicle technology has improved vastly since the 70 NSL was introduced, but that is the primary reason for the massive reduction in fatality rates since the mid 60s. If the NSL is raised, one factor is changing >
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Simon 23h
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Simon 23h
Ah yes, those Italians have really got it sorted when it comes to road safety. Per capita their road death toll is only double that of the UK.......
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Simon 23h
100mph on 3 lane roads? 90mph for good 2 lane roads? HGV speed limits of 80/70mph? In addition to not paying much attention in Physics class at school, I’m guessing that we are not reading the words of an experienced collision investigator or data analyst here ......
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Simon 23h
Most data from 20mph schemes to date shows either neutral or a reduction in KSI collisions. The 70mph NSL, like all limits, is a balance of mobility & economic needs set against safety. Increasing it will increase both RTC rate and RTC severity, for a marginal economic benefit.
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Jack Jun 23
Since average speed cameras were put on the A9 forcing people to drive at or below the speed limit accidents have reduced. My fuel consumption also goes up with my speed between 50-70mph increasing my carbon footprint. This is achieving it’s stated aim.
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