Division 4.1.2 Test road

The road surface shall be flat, even, clean, dry and free of obstacles or wind barriers that might impede the measurement of the road load, and its texture and composition shall be representative of current urban and highway road surfaces. The longitudinal slope of the test road shall not exceed ± 1 per cent. The local slope between any points 3 metres apart shall not deviate more than ± 0,5 per cent from this longitudinal slope. If tests in opposite directions cannot be performed at the same part of the test track (e.g. on an oval test track with an obligatory driving direction), the sum of the longitudinal slopes of the parallel test track segments shall be between 0 and an upward slope of 0,1 per cent. The maximum camber of the test road shall be 1,5 per cent.