4How is N ascertained for the purposes of Part 3 of the Schedule to the Act?

4 How is N ascertained for the purposes of Part 3 of the Schedule to the Act?

(1) For the purposes of the formula set out in Part 3 of the Schedule to the Act, the number N, in relation to a vehicle or a combination of vehicles that includes one or more trailers, is the sum of the equivalent standard axles for each of the rows of tyres across the trailer or trailers. (2) For the purposes of subregulation (1): (a) the number of equivalent standard axles for a row of 8 tyres across a trailer is determined by reference to Table A in Part 2 of Schedule 2; and (b) the number of equivalent standard axles for a row of 4 tyres across a trailer is determined by reference to Table B in Part 2 of Schedule 2. (3) For the purposes of subregulation (2) and Part 2 of Schedule 2, the average load (in tonnes) for a row of tyres across a trailer is worked out using the following formula: Image unavailable in extracted text where:

C is the loaded mass (in tonnes) of the trailer;

B is the number of rows of tyres across the trailer.