Hello AndyRe: Speed cameras....
The LIVE package includes fixed and mobile camera sites for the UK.
HOWEVER, it has it's limitations...
Their data for permanent fixed sites used to be awful with many cameras missed. It has improved a lot over the last year or so, but still misses the odd one and falsely includes many motorway gantries that don't actually have cameras in them.
Their data for temporary fixed sites (such as the SPECS average speed cameras in roadworks) is still poor. New roadworks cameras are often not warned about, and you still get continuing warnings for cameras in places where the roadworks ended months previously and the cameras removed.
The way mobile camera sites are dealt with should be very clever.
Only sites where a camera van has actually been seen today should be announced. However, that seems to depend on sufficient reports from users and I think in my years of using the TT camera warnings, I have only ever had a handful of warnings and never once where I have seen a camera van working.
I far prefer the PGPSW database (and will confess right away that I help with it's maintenance and accuracy as one of their report "verifiers").
Fixed camera positions are almost 100% reliable and any new camera positions are normally added within a week.
Temporary SPECS cameras are also kept up to date far better, again changes are usually added or removed by the next data release date.
Mobile camera sites are handled differently from TomTom's method.... ALL reported sites are flagged and warnings given. This means you will be warned about many mobile sites where vans are known to work but where nothing is currently happening. To me, that's far preferable to not getting a warning simply because no-one else has reported it TODAY.
Old mobile sites are "culled" from the live database if there have been no reoprted sightings witin 6 months to 1 year, but are held in readiness to be restored as soon as a single new report is made.
The PGPSW system also allows you to run VOICE alerts that announce the speed limit in place as you approach a camera. TomTom's own system only announces with a chime or bleep, meaning you have to look down at the screen to check the speed limit if you are unsure of it.
You are able to run both the TomTom and PGPSW data side-by-side to compare the accuracy of the two systems.
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