Tuesday, Nov 25, 2014 at 18:23
To start with yes I had to keep schedules and drive long hours.
Now I see you don't do much driving on single lane 100kph roads.
Like I said your reply was very simple, you stick to your 95 and I will stick to my dollar and when I pass I will be spending as little time on the wrong side of the road as possible. I also have had a clean licence for many many years.
Here is a quote and this may change you math calcs. Look at the real distances of a vehicle overtaking a truck. Read it carefully.
Quote "Fact. Trucks travelling at the new open road speed limit of 90 kph will be almost impossible to pass legally. A 90 kph speed limit for heavy trucks and 100 kph for other traffic is practicable.
A car passing a truck travelling at 90 kph will require almost 2 kilometres of clear road ahead if the car observes the rigidly enforced 100 kph limit and the 2 second separation rule before overtaking.
The impact will be that drivers either break the law or effectively the open road speed limit will be reduced to 90 kph.
Calculation
Based on Truck and 90 kph, 2 sec separation beforehand, 10 metre clearance at end, allowing for oncoming traffic at 100kph + 10% clearance of that:
90 kph = 90,000/3600 = 25 metres/sec.
100 kph = 100,000/3600 = 27.8 metres/sec
Distance to pass = (2 x 25) + (Length of Truck) + 10 + (Length of Car)
Say car is 5 metres, truck is 20 metres, then
Relative distance to pass = 50 + 20 + 10 + 5 = 85 metres
Time to pass = 85 metres / 2.8 metres/sec = 30.4 seconds
Distance travelled to pass = 27.8 * 30.4 = 844 metres
Clear distance required to oncoming traffic = (844 x 2) (+ 10%) = 1688 x 1.1
= 1,856 metres = 1.9 kilometres.
Time on the wrong side of the road is deadly.
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