Thread: Failed License Test For One Km Over

My heavy vehicle and bus license is a 0.000 limit,(charter/tourist/scheduledroute)as up here, the person being tested at a roadside test point has to prove that they are not going to start work driving a bus or has just finished. and if the officer involved wishes one can be taken to a station and blood tested.

BTW. my D1 auto speedo reads 5Klms over at 100k against the GPS on 245 x 16 tyres

Originally Posted by Lotz-A-Landies

Does anyone else take exception to the title of this thread?

The learner driver being examined, never had a licence to lose. What happened was he failed the test and therefore didn't attain a drivers licence.

Diana. I am terribly sorry for this minor error. I have contacted Admin to rectify the title.

I think exception may be too strong - I can modify it if you let me know what your happy with.

Diana

I have just been out in SWMBO car. The speedo goes up in 5 Km increments.

The needle fits nicely between two points, making it about 4km wide.

There is no way anyone could tell me if I was one or two kays over.

Originally Posted by Tombie

More an UCL...
You were running beyond the LCL

no idea what either of those are??

But to add some insight for you, I turned from a small suburb street onto a double lane Rd (there were/are many double lane Rds in SA that can be either 60,70 or 80) there was no speed sign where I turned on, By the time I saw one he had already told me to get up to speed (which I had no idea what it was). It was his local area and well away from where I learnt to drive and had only been in SA for 12 months.

He also deducted points for failing to signal left into the dept. driveway on return. It was a left turn immediately after a left turn from the main Rd. I had indicated, but it self shut off at the point of turning the steering wheel. I would have to forced held it on while trying to turn.

I didn't say anything as I was too nervous and I had passed anyway.

Originally Posted by Lotz-A-Landies

IIRC in NSW the rules for vehicle inspectors is that speedos must read below and not above. So at a speedo reading of 100 kph the vehicle must be doing 95kph +/- 5% speedo innaccuracy.

My point exactly.

So the speedo could read 41 kph, but the vehicle be doing 38 kph. Unless the speedo accuracy is verified by an independent source how could you be failed for speeding if you were not 100% definitely speeding.

Gee, things have changed. I drove through a stop sign during my test and still got my licence. That was in 1965 though!
Lindsay.

Originally Posted by BigJon

My point exactly.

So the speedo could read 41 kph, but the vehicle be doing 38 kph. Unless the speedo accuracy is verified by an independent source how could you be failed for speeding if you were not 100% definitely speeding.

Hi BigJon

I think my point isn't clear. For any speed indicated on your speedo IT CAN NOT BE MORE THAN THE ACTUAL SPEED ON THE ROAD irrespective of any speedo error.

The practice is that speedos are set to over-read by the maximum error. It is why most cars built since about 2000 are actually travelling about 5 to 6kph below the posted limit.

IMHO it is also why people believe that GPS are more accurate. Its not true, modern speedos are very accurate the problem is that manufacturers are required to artificially adjust the indicated speed by Government.