If your vehicle is 5m long, and you allow 20m stopping distance, the road has a capacity of 40 vehicles per km, per km/hr.
ie at 1 km/hr it has a capacity of 40 vehicles per hour.
at 2 km/hr it has a capacity of 80.
at 80 km/hr it has a capacity of 3200 vehicles per hour, and at 100 it has a 4000 vehicles per hour capacity.
NZTA are funded to fix CONGESTED roads.
The easiest way to congest a road is to reduce the speed limit, then to ban passing.
The clever bit is you can CLAIM that you do it for safety, as there is a small correlation between speed and accident rates.
But to do it, you have to IGNORE the large correlation between traffic density and accident rates.
Thats easy. Its New Zealand. No one can count.
David must play fair with the other kids, even the idiots.
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