What is correct, Speedo or sat nav?

Inactive

Strider590 wrote: »

It's accuracy cannot be questioned.



I get this all the time on dualcarriageways where people think the limit is 60mph, I end up either sailing past at 70 or flashing my lights/honking at the pillock in front for slamming on the brakes to go past the camera!! :mad:
One camera in particular is on a bend, on several occasions the idiot in front see's camera, slams on brakes, loses control momentarily and starts to drift toward the central reservation (and the camera), at which point your life is flashing before your eye's because you've no choice but to do the same thing (unless you can switch lanes).

When your behind someone who's doing 70, you don't really expect them to do this.... Obviously they know (think) they're speeding!!!!!!! 100% idiots!

There would appear to be 2 " idiots " involved.

jase1

Maybe, depends on how bad the brake-slamming was really.

Flashing/honking is a legitimate method of making a driver aware of your presence. Unnecessary hard braking is a situation that would warrant the driver being made aware of drivers around him.

There are times when taking the rap is safer than potentially causing a pile-up

There has been one occasion where I was overtaking a pair of cars at (exactly) 70mph going past a speed camera on the A66 in Teesside. The car in front to my left decided to brake hard from what I estimate was 60 down to 45 (must have thought it was a 50 zone for some reason) and the car behind clearly thought for a split second about driving into the side of me. That could have turned nasty, and I'm not sure I would have blamed the driver for going into me either.

The hard-braker flashed me when I filed in in front of him as well, presumably angry at my "speeding" (the 50 zone had ended about a mile previously).

Inactive

jase1 wrote: »

Flashing/honking is a legitimate method of making a driver aware of your presence. Unnecessary hard braking is a situation that would warrant the driver being made aware of drivers around him.

.

Why?, the following driver should leave a safe gap, remember the 2 second rule?

jase1

It's an example of not being aware of other road users. If the driver exhibited a similar lack of awareness on a roundabout and drove out in front of someone, would that not be just cause either?

If the following driver has managed to slow down to suit, then he clearly has left a safe gap. If he had hit the car in front, the horn would not be relevant any more would it?

Lum

C_Mababejive wrote: »

Anyway the police are interested in your speedo,not your sat nav.

The police are interested in the readout from their own various speed measuring devices, all of which have completely different accuracy issues.

Foggster

jase1 wrote: »

They were lying to you -- it's 3-4mph faster!

To be fair I wasnt lied to I just got my slower and faster the wrong way around! :rotfl: Thank you for pointing that out. :T

Strider590

When you round a bend doing 70mph with a 2 second gap and the car in from brakes unexpectedly, you have very little time to think and act... Hitting the brakes hard at 70mph mid corner is just asking for rear end to overtake the front. I experienced this very "phenomenon" in my inexperienced youth (and ended up facing the direction I came from) more than 10years ago and I learned from that experience!

Even to this very day, when travelling 30mph + I will do ALL my braking in as straight a line as possible!! Sure I've got ABS, but that only stops the wheels locking, it ain't gonna stop the weight shifting to the front wheels and throwing me off the road sideways!

jase1

In fairness Strider you shouldn't be taking blind bends at 70mph

That reminds me of an incident I saw out of my office window. It was raining and I suddenly heard a screeching of brakes. The driver had attempted to stop suddenly and had 180d the car. I thought it was amusing that the guy just calmly proceeded to drive away in the opposit direction as if nothing had happened. I thought only cats did that when caught out :rotfl:

Strider590

jase1 wrote: »

In fairness Strider you shouldn't be taking blind bends at 70mph

Who said it was blind?

C_Mababejive

missile wrote: »

The police are interested in your speed not how you measure it.

Indeed though the prescribed and supplied apparatus for such measurement is the vehicle speedometer and so it is to that which we should give greater credence and it suffers much less hysteresis than a sat nav