I recently had to to go to Kent at short notice, and
since
I was heading into relatively unknown territory on a long journey, I
zero'd
my satnav trip details, a rare event.
When I got home, I flipped to the trip detail screen and was tickled to see this trip record shown below...
The distance looks right, but behold, my Max Speed was apparently 242 mph - was I driving a Bugatti Veyron (top speed 258 mph)? - I think not!
This makes you think about how useful is GPS data as the foundation of a national road pricing system - the answer is probably in chocolate teapot territory!
Many people think that a satellite based road pricing system would work roughly like this...
...with the satellites somehow detecting the position of your car and then transmitting the data to the Big Computer that adds up the price of the the roads you have been sitting on, and then issuing a bill.
But of course the satellites don't detect the position of the car at all, it is the Black Box in the car that does all the work, and so a GPS-satellite based road pricing system would really work something like this....
...with the car working out where it thinks it is, and then (somehow, by mobile phone, maybe) sending the data to the Big Computer that...well, you get the picture, don't you...
If such a system were built, then once people twig the way things work, the little Black Boxes will be wearing tin-foil hats - to block the incoming satellite signal, and then to stop the mobile phone signal going out; result: No road travel data = no payment.
So the Power-That-Be would have design some sort of method of enforcement. What better way than using the Automatic Number Plate Recognition (ANPR) cameras that are sprouting all over the place.
All you need to do is cross-relate the journey data received from the in-car black boxes with the location of sightings according to the cameras. The system would look something like this...
Thinking a bit harder than maybe my satnav did, then you can imagine many points of error:
Multiplying up the error probabilities in this ordure-filled pipeline, and you will get a success probability in the mid-seventies percent. Not good...
My trip would have earned me about 18-points on my licence, a big fine, a 5-year ban, and probably 6 months in chokey for apparently travelling at 182 mph faster than the National Speed limit.
So if/when we end up with a GPS-powered road pricing system, expect the worst!
When I got home, I flipped to the trip detail screen and was tickled to see this trip record shown below...
The distance looks right, but behold, my Max Speed was apparently 242 mph - was I driving a Bugatti Veyron (top speed 258 mph)? - I think not!
This makes you think about how useful is GPS data as the foundation of a national road pricing system - the answer is probably in chocolate teapot territory!
Many people think that a satellite based road pricing system would work roughly like this...
...with the satellites somehow detecting the position of your car and then transmitting the data to the Big Computer that adds up the price of the the roads you have been sitting on, and then issuing a bill.
But of course the satellites don't detect the position of the car at all, it is the Black Box in the car that does all the work, and so a GPS-satellite based road pricing system would really work something like this....
...with the car working out where it thinks it is, and then (somehow, by mobile phone, maybe) sending the data to the Big Computer that...well, you get the picture, don't you...
If such a system were built, then once people twig the way things work, the little Black Boxes will be wearing tin-foil hats - to block the incoming satellite signal, and then to stop the mobile phone signal going out; result: No road travel data = no payment.
So the Power-That-Be would have design some sort of method of enforcement. What better way than using the Automatic Number Plate Recognition (ANPR) cameras that are sprouting all over the place.
All you need to do is cross-relate the journey data received from the in-car black boxes with the location of sightings according to the cameras. The system would look something like this...
Thinking a bit harder than maybe my satnav did, then you can imagine many points of error:
- confused satnav systems
- lost distances travelled in tunnels, city canyons, and inside little tin foil hats
- black box failures, including maybe "failures" induced by sharp, stabbling screwdrivers
- failed/partial uploads of trip records
- misrecognised number plates
- cars and drivers missing from the database
- and more...
Multiplying up the error probabilities in this ordure-filled pipeline, and you will get a success probability in the mid-seventies percent. Not good...
I have previously mentioned the risk profile of Government IT projects so I won't bang that particular drum again here, but you can always look here to remind yourself...
My trip would have earned me about 18-points on my licence, a big fine, a 5-year ban, and probably 6 months in chokey for apparently travelling at 182 mph faster than the National Speed limit.
So if/when we end up with a GPS-powered road pricing system, expect the worst!
Footnote: the charming and naively executed diagrams in this post where brought to you courtesy of a DigiScribble pen. It calls itself " The Mobile Digital Note-Taker", but using it underlined for me the fatal flaw of all write-only devices...you can't see what it thinks you wrote until you upload - too late, way too late
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The world of Information Technology overflows with its arcane jargon and acronyms, but it is by no means, the sole offender of creating inpenetrable and mysterious language.
I was recently driving along and saw this displayed on the dot-matrix on the back of a bus...
...and whilst admiring the rendition of the letters on the display and pondering dot densities and the like, I then spent precious minutes attempting to work out what it was actually trying to say, and where was the bus going?
There is a lot of talk about reducing street clutter at one moment, and then, again, increasing confusion within the driver's mind to make them slow down
but this new FLA certainly did the latter, and none of the former for me!
As I overtook and looked in my mirror, Eureka, the bus was heading for the depot, and proudly displaying "Sorry, Not In Service" on the long display at the front.
Yes, the transport types have invented a new word-thing and foisted on us unsuspecting general public who really didn't need it and shouldn't be spending our time working out what it means. This particular word-thing should really only be used amongst consenting transport types and anoraks, and I don't really mind if the bus people use it as a verb,
just as long as they don't do it in front of the children.
In my humble opinion, this display below would have worked better, and would probably have meant more to a large part of the world that uses the Roman alphabet...
I was recently driving along and saw this displayed on the dot-matrix on the back of a bus...
...and whilst admiring the rendition of the letters on the display and pondering dot densities and the like, I then spent precious minutes attempting to work out what it was actually trying to say, and where was the bus going?
There is a lot of talk about reducing street clutter at one moment, and then, again, increasing confusion within the driver's mind to make them slow down
coincidentally, Hans Monderman , the proponent of "Shared Space", died earlier this year, but that is another tangent
but this new FLA certainly did the latter, and none of the former for me!
As I overtook and looked in my mirror, Eureka, the bus was heading for the depot, and proudly displaying "Sorry, Not In Service" on the long display at the front.
Yes, the transport types have invented a new word-thing and foisted on us unsuspecting general public who really didn't need it and shouldn't be spending our time working out what it means. This particular word-thing should really only be used amongst consenting transport types and anoraks, and I don't really mind if the bus people use it as a verb,
"OK, guys, we'll SNIS this bus and bring on the relief"
just as long as they don't do it in front of the children.
In my humble opinion, this display below would have worked better, and would probably have meant more to a large part of the world that uses the Roman alphabet...
Over the weekend, I was very nearly forced to hand out an "Unhappy
Voucher" after a foray into Mobile madness.
Not quite in Norse saga territory, but after getting my daughter's mobile phone replaced three times (cracked keys, random turning-off, etc., etc..), I finally gave in, consigned the not so old phone to Silicon Heaven, bought a new model on some cute subsidised deal, put the SIM in the Box of Many Identities, and handed over the new toy.
So imagine my surprise, when, a week later, I was ambushed whilst staggering to the kettle for the first coffee of the day: "My phone's dead, the display has gone"..... I said "Hnnh"
So there I was, standing in the shop, bristling..........it had all kicked off after the Sales Slug had rejected my reasonable replacement request, and I asked to see the Manager, and Dismal turned up...
Yesssss!
Humanity - 1, Forces of Customer Service Evil - Nil
Not quite in Norse saga territory, but after getting my daughter's mobile phone replaced three times (cracked keys, random turning-off, etc., etc..), I finally gave in, consigned the not so old phone to Silicon Heaven, bought a new model on some cute subsidised deal, put the SIM in the Box of Many Identities, and handed over the new toy.
So imagine my surprise, when, a week later, I was ambushed whilst staggering to the kettle for the first coffee of the day: "My phone's dead, the display has gone"..... I said "Hnnh"
So there I was, standing in the shop, bristling..........it had all kicked off after the Sales Slug had rejected my reasonable replacement request, and I asked to see the Manager, and Dismal turned up...
Me: ....phone broken.....screen blank......Slug......packaging......not necessary.....in the bin. Please could you replace it for me?
Dismal: Sorry, we can't replace the phone without all the original packaging
Me: ...gone in the bin ...
Dismal: Well we can't replace the phone without the original packaging
Me: Yes, you can
Dismal: No we can't
Me: Yes you can
..
Dismal: We could go on like this all day. You're not listening to me
Me: Yes, I am, I just think you're wrong
Dismal: Are you calling me a liar? - Great customer service, this, I thought
Me: No, just mistaken
(Dismal taps on keyboard)
Dismal: I've typed here - advised customer of policy, blah, blah, .no packaging, need to order a handset and battery - OK so they can replace the phone without the packaging, but he's going to make me wait a long time
(Tapping, more tapping, grunt, much more tapping, visit to the stockroom, more tapping, another visit to the stockroom - comes back with new phone in box looking unhappy)
Dismal: We haven't any handsets and batteries in stock, so I will have to take a new phone out of its box and send back the old one...
Yesssss!
Humanity - 1, Forces of Customer Service Evil - Nil
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