How is Speed Limit Calculated?
2 Answers
(Actual Speed - Speed Limit) ÷ Speed Limit x 100%. Additional Information: Penalties for different speeding ranges: 1. Speed exceeding the limit by less than 10%: Warning issued; 2. On roads with speed limits below 50 km/h: Speed exceeding the limit by 10% to less than 20%, fine imposed; exceeding by 20% to less than 50%, fine imposed; exceeding by 50% to less than 70%, fine imposed; exceeding by 70%, fine imposed; 3. On roads with speed limits between 50 km/h and 80 km/h: Speed exceeding the limit by 10% to less than 20%, fine imposed; exceeding by 20% to less than 50%, fine imposed; exceeding by 50% to less than 70%, fine imposed; exceeding by 70%, fine imposed; 4. On roads with speed limits between 80 km/h and 100 km/h: Speed exceeding the limit by 10% to less than 20%, fine imposed; exceeding by 20% to less than 50%, fine imposed; exceeding by 50% to less than 70%, fine imposed; exceeding by 70%, fine imposed; 5. On roads with speed limits above 100 km/h: Speed exceeding the limit by 10% to less than 50%, fine imposed; exceeding by 50% to less than 70%, fine imposed; exceeding by 70% or more, fine imposed.
I usually study traffic engineering and find speed limit calculations quite meticulous. They require looking at road design data, such as sight distance length and curve radius, which engineers use formulas to determine safe speeds. It also involves expected vehicle speeds, like using the speed at which 85% of drivers naturally drive as the upper limit. Urban streets consider pedestrian numbers, with school zones starting at 30km/h, while highways may allow 120km/h but adjust for ramp gradients. Rainy days require additional buffer to ensure safe braking distance. I often review accident data reports, and these calculations help reduce congestion and risks. Global standards vary, referencing Germany's Class A road specifications. Everyone should pay attention to road signs and develop the habit of driving slowly to avoid accidents.
