Common use of Track characteristics Clause in Contracts

Track characteristics. The surface shall be a dense asphalt surface with a uniform gradient of not more than two per cent and shall not deviate more than 6 mm when tested with a 3 m straight edge. The test surface shall have a pavement of uniform age, composition, and wear. The test surface shall be free of loose material or foreign deposits. The maximum chipping size shall be from 8 mm to 13 mm. The sand depth measured as specified in EN13036-1:2001 and ASTM E 965- 96 (reapproved 2006) shall be 0.7 ± 0.3 mm. The surface friction value for the wetted track shall be established by one or other of the following methods according to the discretion of the Contracting Party. 1.1.1. Standard Reference Test Tyre (SRTT) method The average peak braking coefficient (μ peak average) of the ASTM E1136 - 93 (reapproved 2003) reference tyre (Test method using a trailer or a tyre test vehicle as specified in clause 2.1) shall be 0.7 +/- 0.1 (at 65 km/h and 180 kPa). The measured values shall be corrected for the effects of temperature as follows: pbfc = pbfc (measured) + 0.0035 · (t - 20)

Track characteristics. The surface shall be a dense asphalt surface with a uniform gradient of not more than two per cent and shall not deviate more than 6 mm when tested with a 3 m straight edge. The test surface shall have a pavement of uniform age, composition, and wear. The test surface shall be free of loose material or foreign deposits. The maximum chipping size shall be from 8 mm to 13 mm. The sand depth measured as specified in EN13036-1:2001 and ASTM E 965- 965-96 (reapproved 2006) shall be 0.7 ± 0.3 mm. The surface friction value for the wetted track shall be established by one or other of the following methods according to the discretion of the Contracting Party. 1.1.1. Standard Reference Test Tyre (SRTT) method The average peak braking coefficient (μ peak average) of the ASTM E1136 - 93 -93 (reapproved 2003) reference tyre (Test method using a trailer or a tyre test vehicle as specified in clause 2.1) shall be 0.7 +/- 0.1 (at 65 km/h and 180 kPa). The measured values shall be corrected for the effects of temperature as follows: pbfc = pbfc (measured) + 0.0035 · (t - 20)

Track characteristics. The surface shall be a dense asphalt surface with a uniform gradient of not more than two per cent and shall not deviate more than 6 mm when tested with a 3 m straight edgestraightedge. The test surface shall have a pavement of uniform age, composition, and wear. The test surface shall be free of loose material or foreign deposits. The maximum chipping size shall be from 8 mm to 13 mm. The sand depth measured as specified in EN13036-1:2001 and ASTM E 965- 96 (reapproved 2006) shall be 0.7 ± 0.3 mm. The surface friction value for the wetted track shall be established by one or other of the following methods according to the discretion of the Contracting Party. 1.1.1. Standard Reference Test Tyre reference test tyre (SRTT) method The average peak braking coefficient (μ peak average) of the ASTM E1136 - 93 (reapproved 2003) reference tyre (Test method using a trailer or a tyre test vehicle as specified in clause 2.1) shall be 0.7 +/- 0.1 (at 65 km/h and 180 kPa). The measured values shall be corrected for the effects of temperature as follows: pbfc = pbfc (measured) + 0.0035 · (t - 20)