The Truth about Portsmouth

In 2008 Portsmouth introduced a 20mph speed limit and you may have heard the suggestion that injuries were reduced by 20%. 20’s Plenty like to claim this statistic. What they keep quiet about, and the public are generally not told, is that serious injuries have actually increased and the 20% claim relates to overall injuries where only the slight injuries such as a bruised hand or a grazed knee have reduced.

While the residents of Portsmouth may be pleased to suffer fewer grazed knees the fact that more have broken legs or head injuries is of far greater concern.

Here we will not talk in percentages but in actual figures of those killed or injured on the one hand or slightly hurt on the other. 

Below is a table of Portsmouth injuries from 2004-2011.

                  30mph

 

                 20mph

 

Year

2004

2005

2006

2007

2008

2009

2010

2011

Killed or seriously injured

118

106

93

79

99

97

91

143

Slight injury

844

809

784

709

620

608

651

664

Total injuries

962

915

877

788

719

705

742

807

Of course fatalities are the very worst result and here the figures are very interesting when extracted from the combined figures for killed or seriously injured. 

Sadly, as might be expected from the trend already noted in regard to serious injury, in Portsmouth their fatalities increased. Before the 20mph limit in 2006 there were 2 fatalities and in 2007 3; but in 2008, after the imposition of the 20mph limit, distressingly 9 people were killed.

If we played fast and loose with statistics, as 20’s Plenty are inclined to do, we would say that fatal accidents increased by 200%!  This is why we give you the facts in pure numerical form. When the numbers under discussion are small to talk percentages, whilst being entirely accurate, none the less gives a false impression. Could this be why they do it?