How is the presence of microtexture on a runway surface physically checked?

The 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.

What does the ESDU 15002 classification system indicate about runway macrotexture?

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 of 1.0 mm.

Which physical parameter is monitored by measuring slopes against certification specifications?

Drainage is monitored by checking that slopes are within the certification specifications; if the slope falls below the minimum values, the runway becomes more susceptible to standing water during heavy rainfalls.

When and how is ponding on a runway visually assessed?

Ponding is visually monitored during and after rain storm events as the runway dries up.

What tool can be used to measure the degree of rutting on a runway?

The degree of rutting can be measured using a straight edge.

What is the recommended texture depth for runway macrotexture as referenced in the monitoring table?

The recommended texture depth is 1.0 mm.

What does a smooth feel when touching the pavement surface indicate about microtexture?

If the pavement surface feels smooth, it indicates a lack of microtexture, most commonly due to rubber deposits or polishing.

How are sand and vegetation on a runway monitored?

Sand and vegetation are visually monitored during and after rain storm events; ordinary maintenance activities should normally prevent them from accumulating to a hazardous degree.

What are the two methods mentioned for measuring macrotexture?

Macrotexture can be measured using the volumetric or profile measurement method.

What is the consequence of a runway slope falling below the minimum certification values?

If the slope falls below the minimum values, the runway becomes more susceptible to standing water during heavy rainfalls.

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

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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.

Physical parameter	How to monitor
Microtexture	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.
Macrotexture	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.
Drainage	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.
Ponding	Visually, during and after rain storm events as the runway dries up.
Rutting	Visually, during and after rain storm events. The degree of rutting can be measured using a straight edge.
Sand and vegetation	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.

Details

Source-Title: GM1 ADR.OPS.C.010(b)(3) Pavements, other ground surfaces and drainage View latest amendments

Erulesid: ERULES-1963177438-2817 Compare versions

Domain: Aerodromes

Activitytype: Aerodrome maintenance

Applicabilitydate: 5 March, 2021

Entryintoforcedate: 5 March, 2021

Icaoreference: Annex 14

Keywords: CFME

Regulatedentity: Aerodrome operator

Regulatorysource: ED Decision 2021/003/R Navigate

Regulatorysubject: Part-ADR.OPS

Typeofcontent: GM to IR (Guidance material to implementing rule)

Origin: EASA

Category: EAR