New website (mine! :))
Discussion
Hello
I have just started a new website giving simple information on speed traps and other speed related devices.
I hope this will come in use to people. Please feel free to pass it on and make suggestions. I only started it yesterday so it looks a bit crude but its getting there!
http://driverssurvivalguide.users.btopenworld.com/
Edited because I am a pleb and cant use [url] tags.
>>> Edited by soulpatch on Wednesday 26th February 15:34
>>> Edited by soulpatch on Wednesday 26th February 15:35
I have just started a new website giving simple information on speed traps and other speed related devices.
I hope this will come in use to people. Please feel free to pass it on and make suggestions. I only started it yesterday so it looks a bit crude but its getting there!
http://driverssurvivalguide.users.btopenworld.com/
Edited because I am a pleb and cant use [url] tags.
>>> Edited by soulpatch on Wednesday 26th February 15:34
>>> Edited by soulpatch on Wednesday 26th February 15:35
Sorry mate - don't mean to be a spoilsport but www.pepipoo.com and the Uk Speedtrap bible have been around for a while and contain the same stuff.
The ABD (www.abd.org.uk) also has other slants on this.
Not convinced another one will help the cause.
Save your time and join the ABD or at least make a donation to the cause.
The ABD (www.abd.org.uk) also has other slants on this.
Not convinced another one will help the cause.
Save your time and join the ABD or at least make a donation to the cause.
lucozade said: Sorry mate - don't mean to be a spoilsport but www.pepipoo.com and the Uk Speedtrap bible have been around for a while and contain the same stuff.
The ABD (www.abd.org.uk) also has other slants on this.
Not convinced another one will help the cause.
Save your time and join the ABD or at least make a donation to the cause.
Fair comment. I intend to join the ABD also. My site is there to offer advice from the field engineers point of view. Anything that I notice that would be of help will be there. Its all very general.
I will be contacting Pepipoo and Speedtraps to see if they will let me put their links on my site.
Don't let them put you off – keep doing your bit.
The more sources of information available, the better. And any anti-scamera info is better than leaving it to someone else's site. Don't see why there should be a monopoly on pressure groups anyway.
And I like the page about spotting unmarked cars – it's all stuff I regularly look out for, but surprises other people when I point it out to them.
>> Edited by Spoonman on Wednesday 26th February 18:43
The more sources of information available, the better. And any anti-scamera info is better than leaving it to someone else's site. Don't see why there should be a monopoly on pressure groups anyway.
And I like the page about spotting unmarked cars – it's all stuff I regularly look out for, but surprises other people when I point it out to them.
>> Edited by Spoonman on Wednesday 26th February 18:43
Soulpatch, You state on your website that it is rare for marked cars to use VASCAR.
All traffic cars including marked ones are fitted with VASCAR as it links into auto vision systems.
I have had some of my best captures on VASCAR in a marked vehicle on pre-programmed checks where the target vehicle is through the check before it gets to the marked cars position and then obligingly slowed down so that I could catch it.
I have also had some VASCAR hits which were high speeds on vehicles that I have been behind on a following check. The driver so busy looking forwards that they did not check the mirror carefully enough if at all.
I have even had hits on vehicles travelling in the opposite direction. There are all manner of combinations to operate VASCAR from marked vehicles without the target driver even realising they are in a check. Some of them where the marked vehicle is in view through the whole of the check!
All traffic cars including marked ones are fitted with VASCAR as it links into auto vision systems.
I have had some of my best captures on VASCAR in a marked vehicle on pre-programmed checks where the target vehicle is through the check before it gets to the marked cars position and then obligingly slowed down so that I could catch it.
I have also had some VASCAR hits which were high speeds on vehicles that I have been behind on a following check. The driver so busy looking forwards that they did not check the mirror carefully enough if at all.
I have even had hits on vehicles travelling in the opposite direction. There are all manner of combinations to operate VASCAR from marked vehicles without the target driver even realising they are in a check. Some of them where the marked vehicle is in view through the whole of the check!
Also the bit about in car traps the Police car must be behind the target vehicle at a set distance is nonsense. The Police vehicle only records the distance travelled over the check which does not alter however fast it is covered. The target vehicle is the timed vehicle over the distance the police car measures.
The Police car has a sensor and magnets fitted to the prop shaft which the VASCAR head uses to calculate the revolutions of the magnets on the propshaft into measurable distance.
Checks can be pre measured between two points and the traffic car sit up even 1/2 mile further on from the two points if they can be seen clearly. The check is carried out when the target passes the first point and the time switch is activated. When the target passes the second point, the time switch is de-activated and the average speed over that distance is calculated.
You will see that there is no need to even be behind the vehicle to check its speed.
Another way is to allow the target car to pass the slow moving Police vehicle and activate both the time and distance switches together as the cars are level. this gives a common point for the commencement of the check. Allow the target to get away for even distances where it is out of sight having recorded the registration number, then drive at hundreds of MPH to get it back in sight, taking it off the check at a point well ahead such as a bridge in the distance by de-activating the time switch and then as the Police car passes the same bridge, de-activate the distance switch.
Do not be under any illusion there are many ways in which VASCAR can be utilised to gain a reliable check. Not just a folowing check at a fixed and constant distance as you suggest on your site.
>> Edited by madcop on Thursday 27th February 02:56
The Police car has a sensor and magnets fitted to the prop shaft which the VASCAR head uses to calculate the revolutions of the magnets on the propshaft into measurable distance.
Checks can be pre measured between two points and the traffic car sit up even 1/2 mile further on from the two points if they can be seen clearly. The check is carried out when the target passes the first point and the time switch is activated. When the target passes the second point, the time switch is de-activated and the average speed over that distance is calculated.
You will see that there is no need to even be behind the vehicle to check its speed.
Another way is to allow the target car to pass the slow moving Police vehicle and activate both the time and distance switches together as the cars are level. this gives a common point for the commencement of the check. Allow the target to get away for even distances where it is out of sight having recorded the registration number, then drive at hundreds of MPH to get it back in sight, taking it off the check at a point well ahead such as a bridge in the distance by de-activating the time switch and then as the Police car passes the same bridge, de-activate the distance switch.
Do not be under any illusion there are many ways in which VASCAR can be utilised to gain a reliable check. Not just a folowing check at a fixed and constant distance as you suggest on your site.
>> Edited by madcop on Thursday 27th February 02:56
"Also the bit about in car traps the Police car must be behind the target vehicle at a set distance is nonsense. The Police vehicle only records the distance travelled over the check which does not alter however fast it is covered. The target vehicle is the timed vehicle over the distance the police car measures. "
What if the target vehicle is constantly changing lanes, therefore altering the distance ?
What if the target vehicle is constantly changing lanes, therefore altering the distance ?
You are talking about distances which would be equated to only a few feet and therefore at high speed, the fact that feet per second are covered at a huge rate in any case, would make very little difference to the overall average speed. Motorway lanes are 12 feet wide. That gives a scope of 36 feet in all to add between measuring differentials on most motorways (three laned). Take into consideration that the offside of the car if running along the edge of lane 3 will take up at least 5 feet of that distance towards the nearside edge then if you take the same point from the nearside lane edge at the hard shoulder,another 5 feet.
That would give an area of about 26 feet to consider which when drivers change lanes at high speed, will be done gradually over many hundreds of feet and not actually adding a calculation of 7 feet per lane extra every time they changed lanes. The fact that the cars are travelling within a small linear area makes little difference to the outcome of the average speed, especially when you consider that the margin of error in operating the switches in hand to eye co-ordination could be even greater.
>> Edited by madcop on Thursday 27th February 13:46
That would give an area of about 26 feet to consider which when drivers change lanes at high speed, will be done gradually over many hundreds of feet and not actually adding a calculation of 7 feet per lane extra every time they changed lanes. The fact that the cars are travelling within a small linear area makes little difference to the outcome of the average speed, especially when you consider that the margin of error in operating the switches in hand to eye co-ordination could be even greater.
>> Edited by madcop on Thursday 27th February 13:46
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