Speed cameras

mikey72

mchale wrote: »

10% tolerance is allowed on speedo readings, so a speedo reading 30mph could mean an actual speed of ether 27mph or 33mph, or anywhere between those speeds.

It used to be a manufacturing tolerence, back in the good old days of mechanical speedos.
That's why they all read low.
The tolerance was +0, -10%, so usually they were set to be 28.5, +-5% at the factory.
So spot on at true 30mph, it would read 28.5mph, but could vary from 27 tp 30mph.
Older ones were even worse, but they were always set low, never high.

Gene_Hunt_2

mchale wrote: »

Post some stats of cases of people being done for 33mph or less in a 30 zone please

Tell you what ask the question here.

Paradigm

mchale wrote: »

Post some stats of cases of people being done for 33mph or less in a 30 zone please

I think you'll find he said can not that they do... backed up by this....

• Driving at any speed over the limit is an offence. The differing speed limits are generally related, and proportionate, to the risks to all road users using that road. Where police officers consider that an offence has been committed i.e. that a motorist has driven at any speed over the relevant speed limit, they should consider whether it is appropriate to take enforcement action against the offender.
  
  The Police Service now uses technology that enables it to prove that an offence has been committed as soon as a driver exceeds the relevant speed limit by a very small margin. Motorists will therefore be at risk of prosecution immediately they exceed any legal speed limit.
  

And....

Where Police Officers believe that an offence has been committed (in this case, that a motorist has driven at any speed over the relevant speed limit), in exercising their discretion as to the appropriate enforcement action, they must consider the nature and circumstances of the offence. Depending on those circumstances they may decide to issue a summons, issue a fixed penalty notice, caution, warn or take no action. For instance, it might be appropriate to issue a summons for exceeding a speed limit at relatively low speeds over the relevant limit on roads near schools at certain times of day or when there are adverse weather conditions, whereas a similar offence committed in the middle of the night might merit the issue of a fixed penalty notice.

• Taken from http://www.acpo.police.uk/asp/policies/Data/speed_enforcement_guidelines_web_v7_foi.doc

Gene_Hunt_2

Paradigm wrote: »

I think you'll find he said can not that they do... backed up by this....

• 
  
  Taken from http://www.acpo.police.uk/asp/policies/Data/speed_enforcement_guidelines_web_v7_foi.doc

Thanks for that.;)