GM1 ADR.OPS.C.010(b)(3) Pavements, other ground surfaces and drainage

• ED Decision 2021/003/R found in: Aerodromes (139/2014) Part-ADR.AR Part-ADR.OR Part-ADR.OPS CS-ADR-DSN CS-HPT-DSN (Dec 2024)

GM1 ADR.OPS.C.010(b)(3) Pavements, other ground surfaces and drainage ED Decision 2021/003/R MONITORING OF PHYSICAL PARAMETERS The following table describes how the physical parameters of the runway surface are monitored. <table border="1" cellpadding="0" cellspacing="0"><tr><td valign="top" width="183"><p><b>Physical parameter</b></p></td><td valign="top" width="415"><p align="center"><b>How to monitor</b></p></td></tr><tr><td valign="top" width="183"><p><b>Microtexture</b></p></td><td valign="top" width="415"><p>Presence of microtexture is ensured by touching the pavement surface. If it feels smooth, there is a lack of microtexture, most commonly due to rubber deposits which normally should be visually detectable or by polishing. In either case, the amount of free exposed microtexture should be assessed.</p></td></tr><tr><td valign="top" width="183"><p><b>Macrotexture</b></p></td><td valign="top" width="415"><p>Can be measured using volumetric or profile measurement method and expressed by ESDU classification. ESDU 15002 groups runways into five classifications labelled A through E with A being the smoothest and E the most heavily textured. The classification can be used to compare the runway texture relevant to the recommended texture depth which is 1.0 mm.</p></td></tr><tr><td valign="top" width="183"><p><b>Drainage</b></p></td><td valign="top" width="415"><p>Slopes are within the certification specifications. If the slope falls below the minimum values, then the runway becomes more susceptible to standing water during heavy rainfalls.</p></td></tr><tr><td valign="top" width="183"><p><b>Ponding</b></p></td><td valign="top" width="415"><p>Visually, during and after rain storm events as the runway dries up.</p></td></tr><tr><td valign="top" width="183"><p><b>Rutting</b></p></td><td valign="top" width="415"><p>Visually, during and after rain storm events. The degree of rutting can be measured using a straight edge.</p></td></tr><tr><td valign="top" width="183"><p><b>Sand and vegetation</b></p></td><td valign="top" width="415"><p>Visually during and after rain storm events. Normally, ordinary maintenance activities should prevent sand to accumulate and vegetation to form alongside the runway to such a degree that it becomes a hazard.</p></td></tr></table> GM1 ADR.OPS.C.010(b)(3) Pavements, other ground surfaces and drainage ED Decision 2021/003/R MONITORING OF PHYSICAL PARAMETERS The following table describes how the physical parameters of the runway surface are monitored. <table border="1" cellpadding="0" cellspacing="0"><tr><td valign="top" width="183"><p><b>Physical parameter</b></p></td><td valign="top" width="415"><p align="center"><b>How to monitor</b></p></td></tr><tr><td valign="top" width="183"><p><b>Microtexture</b></p></td><td valign="top" width="415"><p>Presence of microtexture is ensured by touching the pavement surface. If it feels smooth, there is a lack of microtexture, most commonly due to rubber deposits which normally should be visually detectable or by polishing. In either case, the amount of free exposed microtexture should be assessed.</p></td></tr><tr><td valign="top" width="183"><p><b>Macrotexture</b></p></td><td valign="top" width="415"><p>Can be measured using volumetric or profile measurement method and expressed by ESDU classification. ESDU 15002 groups runways into five classifications labelled A through E with A being the smoothest and E the most heavily textured. The classification can be used to compare the runway texture relevant to the recommended texture depth which is 1.0 mm.</p></td></tr><tr><td valign="top" width="183"><p><b>Drainage</b></p></td><td valign="top" width="415"><p>Slopes are within the certification specifications. If the slope falls below the minimum values, then the runway becomes more susceptible to standing water during heavy rainfalls.</p></td></tr><tr><td valign="top" width="183"><p><b>Ponding</b></p></td><td valign="top" width="415"><p>Visually, during and after rain storm events as the runway dries up.</p></td></tr><tr><td valign="top" width="183"><p><b>Rutting</b></p></td><td valign="top" width="415"><p>Visually, during and after rain storm events. The degree of rutting can be measured using a straight edge.</p></td></tr><tr><td valign="top" width="183"><p><b>Sand and vegetation</b></p></td><td valign="top" width="415"><p>Visually during and after rain storm events. Normally, ordinary maintenance activities should prevent sand to accumulate and vegetation to form alongside the runway to such a degree that it becomes a hazard.</p></td></tr></table> ##### GM1 ADR.OPS.C.010(b)(3) Pavements, other ground surfaces and drainage *ED Decision 2021/003/R* **MONITORING OF PHYSICAL PARAMETERS** The following table describes how the physical parameters of the runway surface are monitored. <table bgcolor="#d9d9d9" cellpadding="7" cellspacing="0"> <col/> <col/> <tr valign="top"> <td bgcolor="#808080"><p> <b>Physical parameter</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>How to monitor</b></p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Microtexture</b></p> </td> <td bgcolor="#d9d9d9"><p> Presence of microtexture is ensured by touching the pavement surface. If it feels smooth, there is a lack of microtexture, most commonly due to rubber deposits which normally should be visually detectable or by polishing. In either case, the amount of free exposed microtexture should be assessed.</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Macrotexture</b></p> </td> <td bgcolor="#d9d9d9"><p> Can be measured using volumetric or profile measurement method and expressed by ESDU classification. ESDU 15002 groups runways into five classifications labelled A through E with A being the smoothest and E the most heavily textured. The classification can be used to compare the runway texture relevant to the recommended texture depth which is 1.0 mm.</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Drainage</b></p> </td> <td bgcolor="#d9d9d9"><p> Slopes are within the certification specifications. If the slope falls below the minimum values, then the runway becomes more susceptible to standing water during heavy rainfalls.</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Ponding</b></p> </td> <td bgcolor="#d9d9d9"><p> Visually, during and after rain storm events as the runway dries up.</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Rutting</b></p> </td> <td bgcolor="#d9d9d9"><p> Visually, during and after rain storm events. The degree of rutting can be measured using a straight edge.</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p> <b>Sand and vegetation</b></p> </td> <td bgcolor="#d9d9d9"><p> Visually during and after rain storm events. Normally, ordinary maintenance activities should prevent sand to accumulate and vegetation to form alongside the runway to such a degree that it becomes a hazard.</p> </td> </tr> </table>