---
title: "GM1 ADR-DSN.D.255 Junction and intersection of taxiways — Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes · Avioverse"
description: "Consideration should be given to the aeroplane datum length when designing fillets."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-255"
---

# GM1 ADR-DSN.D.255 Junction and intersection of taxiways

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.D.255 Junction and intersection of taxiways

Consideration should be given to the [aeroplane](https://avioverse.aero/glossary/easa/aeroplane) [datum](https://avioverse.aero/glossary/easa/datum) length when designing fillets. Guidance on the design of fillets and the definition of the term aeroplane datum length are given in ICAO Doc 9157, [Aerodrome](https://avioverse.aero/glossary/easa/aerodrome) Design Manual, Part 2, Taxiways, Aprons and Holding Bays.

\[Issue: ADR-DSN/3]

GM · GM1 ADR-DSN.D.255 — Regulation (EU) No 139/2014 · ED Decision 2016/027/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER D — TAXIWAYS](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways)

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.