--- title: "CS ADR-DSN.D.240 – CS ADR-DSN.D.340: CHAPTER D — TAXIWAYS (Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes) — rule index · Avioverse" description: "CS ADR-DSN.D.240 – CS ADR-DSN.D.340, Regulation (EU) No 139/2014. Unless otherwise indicated, the requirements in Chapter D - Taxiways are applicable to…" url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways" --- # CHAPTER D — TAXIWAYS Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Aerodromes · Regulation (EU) No 139/2014 · CS ADR-DSN.D.240 – CS ADR-DSN.D.340 On this page 1. ## [CS ADR-DSN.D.240 Taxiways general](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-240) Unless otherwise indicated, the requirements in Chapter D - Taxiways are applicable to all types of taxiways. 2. ## [GM1 ADR-DSN.D.240 Taxiways general](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-240) Taxiways should be provided to permit the safe and expeditious surface movement of aircraft. 3. ## [CS ADR-DSN.D.245 Width of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-245) A straight portion of a taxiway should have a width of not less than that given by the following tabulation: 4. ## [GM1 ADR-DSN.D.245 Width of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-245) The width of the taxiway should be measured at the edge of the paved surface, or where the taxiway edge is marked, at the outside edge of the taxiway… 5. ## [CS ADR-DSN.D.250 Taxiways curves](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-250) Changes in direction of taxiways should be as few and small as possible. 6. ## [GM1 ADR-DSN.D.250 Taxiways curves](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-250) The location of taxiway centre line markings and lights is specified in CS ADR-DSN.L.555 and CS ADR-DSN.M.710. 7. ## [CS ADR-DSN.D.255 Junction and intersection of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-255) To facilitate the movement of aeroplanes, fillets should be provided at junctions and intersections of taxiways with runways, aprons, and other taxiways. 8. ## [GM1 ADR-DSN.D.255 Junction and intersection of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-255) Consideration should be given to the aeroplane datum length when designing fillets. 9. ## [CS ADR-DSN.D.260 Taxiway minimum separation distance](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-260) The safety objective of minimum taxi separation distances is to allow safe use of taxiways and aircraft stand taxilanes to prevent possible collision… 10. ## [GM1 ADR-DSN.D.260 Taxiway minimum separation distance](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-260) Guidance on factors which may be considered in the safety assessment is given in ICAO Doc 9157, Aerodrome Design Manual, Part 2, Taxiways, Aprons and… 11. ## [CS ADR-DSN.D.265 Longitudinal slopes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-265) The safety objective of limiting the longitudinal taxiway slope is to enable stabilised safe use of taxiway by an aircraft. 12. ## [GM1 ADR-DSN.D.265 Longitudinal slopes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-265) intentionally left blank 13. ## [CS ADR-DSN.D.270 Longitudinal slope changes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-270) The safety objective of limiting the longitudinal taxiway slope changes is to avoid damage of aircraft and to enable safe use of taxiway by an aircraft. 14. ## [GM1 ADR-DSN.D.270 Longitudinal slope changes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-270) intentionally left blank 15. ## [CS ADR-DSN.D.275 Sight distance of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-275) The safety objective of minimum taxiway sight distance values is to achieve the necessary visibility to enable safe use of taxiway by an aircraft. 16. ## [GM1 ADR-DSN.D.275 Sight distance of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-275) intentionally left blank 17. ## [CS ADR-DSN.D.280 Transverse slopes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-280) The safety objective of taxiway transverse slopes is to promote the most rapid drainage of water from the taxiway. 18. ## [GM1 ADR-DSN.D.280 Transverse slopes on taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-280) The slopes on a taxiway are intended to prevent the accumulation of water (or possible fluid contaminant) on the surface and to facilitate rapid drainage… 19. ## [CS ADR-DSN.D.285 Strength of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-285) The strength of a taxiway should be suitable for the aircraft that the taxiway is intended to serve. 20. ## [GM1 ADR-DSN.D.285 Strength of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-285) Due consideration is to be given to the fact that a taxiway is subjected to a greater density of traffic and as a result of slow moving and stationary… 21. ## [CS ADR-DSN.D.290 Surface of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-290) The surface of a taxiway should not have irregularities that cause damage to aeroplane structures. 22. ## [GM1 ADR-DSN.D.290 Surface of taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-290) Suitable surface friction characteristics are those surface properties required on taxiways that assure safe operation of aeroplanes. 23. ## [CS ADR-DSN.D.295 Rapid exit taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-295) The safety objective of rapid exit taxiway is to facilitate safe rapid exit of aeroplanes from a runway. 24. ## [GM1 ADR-DSN.D.295 Rapid exit taxiways](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-295) The following guidance applies particularly to rapid exit taxiways (see Figure D-1). 25. ## [CS ADR-DSN.D.300 Taxiways on bridges](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-300) The width of that portion of a taxiway bridge capable of supporting aeroplanes, as measured perpendicularly to the taxiway centre line, should not be… 26. ## [GM1 ADR-DSN.D.300 Taxiways on bridges](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-300) If aeroplane engines overhang the bridge structure, protection of adjacent areas below the bridge from engine blast may be required. 27. ## [CS ADR-DSN.D.305 Taxiway shoulders](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-305) Straight portions of a taxiway where the code letter is C, D, E, or F should be provided with shoulders which extend symmetrically on each side of the… 28. ## [GM1 ADR-DSN.D.305 Taxiway shoulders](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-305) Guidance on characteristics of taxiway shoulders and on shoulder treatment is given in ICAO Doc 9157, Aerodrome Design Manual, Part 2, Taxiways, Aprons… 29. ## [CS ADR-DSN.D.310 Taxiway Strip](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-310) A taxiway, other than an aircraft stand taxilane, should be included in a strip. 30. ## [GM1 ADR-DSN.D.310 Taxiway Strip](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-310) A taxiway strip should be so prepared or constructed as to minimise hazards arising from differences in load bearing capacity to aeroplanes which the… 31. ## [CS ADR-DSN.D.315 Width of taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-315) The safety objective of the width of taxiway strips is to allow safe use of taxiways in relation to adjacent objects. 32. ## [GM1 ADR-DSN.D.315 Width of taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-315) intentionally left blank 33. ## [CS ADR-DSN.D.320 Objects on taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-320) The taxiway strip should provide an area clear of objects which may endanger taxiing aeroplanes. 34. ## [GM1 ADR-DSN.D.320 Objects on taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-320) Consideration should be given to the location and design of drains on a taxiway strip to prevent damage to an aeroplane accidentally running off a taxiway. 35. ## [CS ADR-DSN.D.325 Grading of taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-325) The safety objective of the grading of a taxiway strip is to reduce the risk of damage to an aircraft accidentally running off the taxiway. 36. ## [GM1 ADR-DSN.D.325 Grading of taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-325) Further guidance on the width of the graded portion of a taxiway is given in ICAO Doc 9157, Aerodrome Design Manual, Part 2, Taxiways, Aprons and Holding… 37. ## [CS ADR-DSN.D.330 Slopes on taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-330) The safety objective of limiting the longitudinal taxiway strip slopes and slope changes and of minimum sight distances values is to reduce the… 38. ## [GM1 ADR-DSN.D.330 Slopes on taxiway strips](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-330) Where required for proper drainage, an open-air storm water conveyance may be allowed in the non-graded portion of a taxiway strip and should be placed… 39. ## [CS ADR-DSN.D.335 Holding bays, runway-holding positions, intermediate holding positions, and road-holding positions](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-335) Holding bay(s) or other bypasses of sufficient size and adequate construction should be provided where necessary, to make deviations in the departure… 40. ## [GM1 ADR-DSN.D.335 Holding bays, runway-holding positions, intermediate holding positions, and road-holding positions](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-335) At low levels of aerodrome activity (less than approximately 50 000 annual operations), there is normally little need to make deviations in the departure… 41. ## [CS ADR-DSN.D.340 Location of holding bays, runway-holding positions, intermediate holding positions, and road-holding positions](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/cs-adr-dsn-d-340) The distance between a holding bay, runway-holding position established at a taxiway/runway intersection or road-holding position and the centre line of… 42. ## [GM1 ADR-DSN.D.340 Location of holding bays, runway-holding positions, intermediate holding positions, and road-holding positions](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-d-taxiways/gm1-adr-dsn-d-340) Care should be taken so that propeller wash and jet blast from holding aircraft do not interfere with aircraft operations, cause damage to vehicles, or… 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. Share [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Faerodromes%2Fcs-adr-dsn%2Fchapter-d-taxiways)[X](https://twitter.com/intent/tweet?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Faerodromes%2Fcs-adr-dsn%2Fchapter-d-taxiways\&text=CHAPTER%C2%A0D%20%E2%80%94%20TAXIWAYS%20%E2%80%94%20Aerodromes)