Repaving the test area. If it is necessary to repave the test track, it is usually unnecessary to repave more than the test strip (of 3 m width in Figure 1) where vehicles are driving, provided the test area outside the strip met the requirement of residual voids content or sound absorption when it was measured.
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Samples: unece.org, tind-customer-undl.s3.amazonaws.com, digitallibrary.un.org