Road dust calculation formula:

$$ E=0.000501 \times V \times 0.823 \times U \times 0.139 \times ( \frac {T}{4} ) $$

In the formula:

E——the amount of road dust emission caused by a single vehicle, kg/km;

V——the average speed of the vehicle passing by, km/h;

U——dust speed, generally 5m/s;

T - the average number of tires per vehicle, generally taken as 6.

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