SwingsitlikeHogan
Major Champion
So issue with someone driving at 50mph on a m/way or d/carriageway is? (assuming not lane hogging middle lane which is dangerous and hence why now illegal)
Speeding in a thirty limit
- Thread starter USER1999
- Start date
So issue with someone driving at 50mph on a m/way or d/carriageway is? (assuming not lane hogging middle lane which is dangerous and hence why now illegal)
ger147
Tour Winner
But you accept the idea that braking distances vary from car to car?
USER1999
Grand Slam Winner
Back to the original question.
Answer, 35 in a 30 gets you pinged, 34 doesn't.
Guess what? I was doing 35.
Who gets to go on a speed awareness course? Me.
And I was driving down a road, in a 30, where the houses end ( I was past them), and 100 yards later the limit changes to 60. I got pinged by a mobile camera unit just short of the national speed limit sign, at 35 in a 30. According to the paperwork, if I'd been doing 34 I'd have been fine. But is wasn't.
Fair do's I was speeding, but I wondered how many would think this was within tolerance.
Answer, 35 in a 30 gets you pinged, 34 doesn't.
Guess what? I was doing 35.
Who gets to go on a speed awareness course? Me.
And I was driving down a road, in a 30, where the houses end ( I was past them), and 100 yards later the limit changes to 60. I got pinged by a mobile camera unit just short of the national speed limit sign, at 35 in a 30. According to the paperwork, if I'd been doing 34 I'd have been fine. But is wasn't.
Fair do's I was speeding, but I wondered how many would think this was within tolerance.
stevie_r
Tour Winner
The main danger with slow drivers is not necessarily speeds when on m/ways or dual carriageways, it's joining these roads, roundabouts and numerous other instances of crap awareness.
D
Deleted member 17920
Guest
scary isn't it, some people have no idea or think its never going to happen to them, tailgating is something that does my head in, this morning on the way to work coming into the village 500 yards before a school is a 30 zone I always slow down as you never know and I am not prepared to take the risk that a kid will run out in front off you.4x4 sat right u my backside and even looking to overtake me,20 yards from the school and he stops to let his kids out, just incredible.
chrisd
Major Champion
Going to a forum meet, I was held up for 1.5 hours on the M25 and was snapped near the course. I saw no signs and the summons said that there need not be any speed signs where the cameras are situated! I was 1 mph over the limit for an awareness course, so took the hit of 3 points, the first ever in 41 years of driving!
The silly thing is, as far as I'm concerned, it's the faster driver who is more dangerous surely, and need the awareness course the most!
The silly thing is, as far as I'm concerned, it's the faster driver who is more dangerous surely, and need the awareness course the most!
Foxholer
Blackballed
So it was twaddle!
According to the charts/tables/formulae I have seen...
If 2 cars side by side when they brake, one at 80, one at 70 brake at same time.
Braking distance @ 70 is 75 metres; braking distance @ 80 is around 110 metres. The car starting at 80 will be travelling at nearly 50 as it passes the stopped 70mph starter and will take another 35 metres to stop.
No idea where you got you numbers from, but you may have confused Braking and Stopping distances (Stopping includes thinking/reaction time). Again, it depends what the distance between the vehicles (in the same lane) is as to how this affects any collision speeds.
I believe the key thing that the authorities try to get across about Motorway speed differentials is that it's not a linear. In the example above, the initial difference was only 10mph, but the difference at collision is significantly more - as in the 50 mph above!
Now back on-topic please. The thread's about 30mph areas!
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MegaSteve
Tour Winner
Would be relatively straightforward with modern vehicles to 'engineer in' some form of speed governance....
Foxholer
Blackballed
This technology has existed for some considerable time - linking GPS to Engine Management.
I'm waiting for the time when... you enter your destination and the car transports you there - without the necessity of a 'driver'! Conceptually simple; practically challenging! But that's what Engineers love!
MegaSteve
Tour Winner
Can't see the 'logic' of those that feel the need to be travelling at 40+ and often 50+ on residential roads myself...
20mph, for me, is more appropriate than 30mph for residential areas...
MegaSteve
Tour Winner
I am now a 'failed' cyclist... Really can't find the courage anymore to take my chances on the local roads... Particularly at school run time...
Foxholer
Blackballed
So is that going to be any different with a limit of 20 compared to a limit of 30?
On that 30 mph road I mentioned where folk were doing 70-80, a 20mph limit would be a) pointless! and b) inappropriate - 30 was/is the right limit.
D
Deleted member 15344
Guest
70/80 during a 30mph limit ?! Which road is this and is it residential
Would bring in some chicanes and ramps and if collisions then a speed camera
Imurg
The Grinder Of Pars (Semi Crocked)
It becomes less critical at slower speeds.
Hit a pedestrian at 30 and there's a 20% chance of them dying.
At 36 it's 50:50
So at 20 it must be virtually zero.
If someone is doing 25 I guess that risk rises to 5%..?
So although you would be breaking the limit, your chances of increasing the KSI stat is low.
And that's really what Speed Limits are about - and by the way...A Speed Limit is a Limit not necessarily a target.
the hammer
Challenge Tour Pro
HID was done at 34 in a 30.
Captainron
Big Hitting, South African Sweary Person
I've always believed that you got a 10% tolerance. My speedo is under calibrated as its cars are these days. I have a sat nav which I think gives me a more accurate measurement and shows that I am only doing 27 when the speedo shows 30. Living in Lincolnshire has taught me no end of patience here. I actually try and drive with my mpg reading on and see of I can increase it. Sad hey?
Vice
Head Pro
D
Deleted member 15344
Guest
The sat nav speed isn't a true accurate reading also - it doesn't take into
account the curvature of the road. It will be closer than your speedo though
Ethan
Money List Winner
A few issues. Car speedos over-read speed, so when your indicator says you are doing X you are almost always doing less, but never doing more. Hence the margin for error.
The basic concept of speed limits is a perfectly reasonable one, but it is distorted by local councils attempts to raise money (although that is now changing) and NIMBYs who have pull with a local council and get their part of the road designated as a 30 when it really does not need to be, and it sits in between sections of 40 or 50 providing nice little speed traps. These areas do nothing to promote road safety.
Slow driving causes many accidents by causing clumping of traffic, and MPVs with mothers more interested in looking into the back to tell off the kids off and causing other cars to swerve. These culprits are usually not in the accident but just leave the trail of destruction behind them.
The basic concept of speed limits is a perfectly reasonable one, but it is distorted by local councils attempts to raise money (although that is now changing) and NIMBYs who have pull with a local council and get their part of the road designated as a 30 when it really does not need to be, and it sits in between sections of 40 or 50 providing nice little speed traps. These areas do nothing to promote road safety.
Slow driving causes many accidents by causing clumping of traffic, and MPVs with mothers more interested in looking into the back to tell off the kids off and causing other cars to swerve. These culprits are usually not in the accident but just leave the trail of destruction behind them.
D
Deleted member 18645
Guest
So no wonder you won - you had three points before you even teed off the 1st!
Sorry - could not resist that one!
