---
title: "GM1 ADR-DSN.B.125 Runway shoulders — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Runway shoulders should be considered because strong crosswinds may result in significant deviation from the runway centre line."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-b-runways/gm1-adr-dsn-b-125"
---

# GM1 ADR-DSN.B.125 Runway shoulders

Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GM Guidance material

## GM1 ADR-DSN.B.125 Runway shoulders

(a) [Runway](https://avioverse.aero/glossary/easa/runway) shoulders should be considered because strong crosswinds may result in significant deviation from the runway centre line. In the case of some large [aircraft](https://avioverse.aero/glossary/easa/aircraft), the wing-mounted engines may overhang the runway edge and there is a risk of jet blast eroding the surface adjacent to the runway. This can cause dust and the possible ingestion of debris by the engines.

(b) Further guidance on runway shoulders is given in ICAO Doc 9157, [Aerodrome](https://avioverse.aero/glossary/easa/aerodrome) Design Manual, Part 1, Runways.

(c) Mitigation measures that can be considered are to provide the runway with inset runway edge lights (in lieu of elevated lights, to protect [aeroplane](https://avioverse.aero/glossary/easa/aeroplane) from ingestion) and additional runway centre line guidance.

\[Issue: ADR-DSN/3]

\[Issue: ADR-DSN/4]

GM · GM1 ADR-DSN.B.125 — Regulation (EU) No 139/2014 · ED Decision 2017/021/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER B — RUNWAYS](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-b-runways)

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.