Gatsobait wrote:
I think we can infer from that that they're making a shitload.
I'd consider that a fairly safe bet, yes... Look at that photo in the article - a classic example of TVP talivanning. Oh suuuuuuuuuure, the van might be parked in a nice visible spot (no hiding in the bushes a la CSCP), but they haven't exactly gone out of their way to make the police markings visible. Approaching the van from the rear, the unsuspecting motorist will see nothing more threatening than a small white van. It's not until you get pretty damned close to the rear end that you'll be able to make out the microscopically small "Police" legend just above each of the rear windows (I've walked past one of these small talivans, and I had to get to within about 10m before I could make out what the words actually were on the rear doors).
And then there's the location - "the mobile speed camera is placed on the uphill carriageway, yards from where the speed limit changes from 30mph to 40."... So, rather than looking to catch people heading the other way who aren't slowing down for the entry into the 30 limit, they're out to catch people who accelerate just a few seconds too soon whilst entering the 40 limit. Now, whilst it is technically illegal to exceed the 30 limit until you've passed the 40 limit sign (*), it's surely entirely against the spirit of the law to be scamming people who may very well have been sticking to the 30 limit like saints everywhere else, and who have only exceeded it because they can clearly see that they're just a few seconds away from entering a higher limit.
* hmm, as an aside here, when is a vehicle classed as having entered the new limit? Could you be done for speeding if you started accelerating as soon as your front bumper passes the higher limit sign, so that the rear portion of your vehicle which has still to pass the sign is exceeding the lower limit you're in the process of leaving?