---
title: "GM1 ADR-DSN.L.550 Runway side stripe marking — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "When turn pads are not available at the end of a runway for back-track manoeuvres and threshold is displaced, in order to better identify full-strength…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings/gm1-adr-dsn-l-550"
---

# GM1 ADR-DSN.L.550 Runway side stripe marking

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.L.550 Runway side stripe marking

When turn pads are not available at the end of a [runway](https://avioverse.aero/glossary/easa/runway) for back-track manoeuvres and [threshold](https://avioverse.aero/glossary/easa/threshold) is displaced, in order to better identify full-strength bearing surface, it may be useful to display specific dashed markings as showed by Figure GM-L-1 and with dimensions described in Table GM-L-1.

\[Figure or form omitted from this preview — available in the Avioverse workspace library.]

Figure GM-L-1. Dashed runway side stripe [marking](https://avioverse.aero/glossary/easa/marking)

| Runway width (m)                                                                                                     | Single dash dimensions |           |
| -------------------------------------------------------------------------------------------------------------------- | ---------------------- | --------- |
|                                                                                                                      | Length (minimum m)     | Width (m) |
| 60                                                                                                                   | 15                     | 0.45      |
| 45                                                                                                                   | 15                     | 0.45      |
| 30                                                                                                                   | 10                     | 0.45      |
| 23                                                                                                                   | 6                      | 0.25      |
| 18                                                                                                                   | 4                      | 0.25      |
| Note: The length of the gap is as much as possible equal, but not longer, to the length of the corresponding marking |                        |           |

Table GM-L-1. Dashed runway side stripe markings

GM · GM1 ADR-DSN.L.550 — Regulation (EU) No 139/2014 · ED Decision 2014/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER L — VISUAL AIDS FOR NAVIGATION (MARKINGS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-l-visual-aids-for-navigation-markings)

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.