--- title: "CS ADR-DSN.C.210 – CS ADR-DSN.C.236: CHAPTER C — RUNWAY END SAFETY AREA (Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7, Aerodromes) — rule index · Avioverse" description: "CS ADR-DSN.C.210 – CS ADR-DSN.C.236, Regulation (EU) No 139/2014. The safety objective of the runway end safety area (RESA) is to minimise risks to…" url: "https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area" --- # CHAPTER C — RUNWAY END SAFETY AREA Certification Specifications and Guidance Material for Aerodrome Design (CS-ADR-DSN) — Issue 7 · Aerodromes · Regulation (EU) No 139/2014 · CS ADR-DSN.C.210 – CS ADR-DSN.C.236 On this page 1. ## [CS ADR-DSN.C.210 Runway end safety areas (RESA)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-210) The safety objective of the runway end safety area (RESA) is to minimise risks to aircraft and their occupants when an aeroplane overruns or undershoots… 2. ## [GM1 ADR-DSN.C.210 Runway end safety areas (RESA)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-210) General (1) A runway end safety area should provide an area long and wide enough, and suitable to contain overruns and undershoots resulting from a… 3. ## [CS ADR-DSN.C.215 Dimensions of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-215) Length of runway end safety area (1) A runway end safety area should extend from the end of a runway strip to a distance of at least 90 m and, as far as… 4. ## [GM1 ADR-DSN.C.215 Dimensions of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-215) It is accepted that many aerodromes were constructed before requirements for RESAs were introduced. 5. ## [CS ADR-DSN.C.220 Objects on runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-220) No fixed object, other than equipment and installations required for air navigation or for aeroplane safety purposes and satisfying the relevant… 6. ## [GM1 ADR-DSN.C.220 Objects on runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-220) Information regarding siting of equipment and installations on operational areas, including RESA, is detailed in CS ADR-DSN.T.915. 7. ## [CS ADR-DSN.C.225 Clearing and grading of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-225) A runway end safety area should provide a cleared and graded area for aeroplanes which the runway is intended to serve in the event of an aeroplane… 8. ## [GM1 ADR-DSN.C.225 Clearing and grading of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-225) The surface of the runway end safety area should be prepared but does not need to be prepared to the same quality as the runway strip. 9. ## [CS ADR-DSN.C.230 Slopes on runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-230) Longitudinal slopes (1) The slopes of a runway end safety area should be such that no part of the runway end safety area penetrates the approach or… 10. ## [GM1 ADR-DSN.C.230 Slopes on runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-230) Where clearway is provided, the slope on the RESA should be amended accordingly. 11. ## [CS ADR-DSN.C.235 Strength of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-235) A runway end safety area should have a bearing strength sufficient to serve its primary purpose. 12. ## [GM1 ADR-DSN.C.235 Strength of runway end safety areas](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-235) A runway end safety area should be so prepared or constructed as to reduce the risk of damage to an aeroplane undershooting or overrunning the runway… 13. ## [CS ADR-DSN.C.236 Engineered Materials Arresting System (EMAS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/cs-adr-dsn-c-236) An EMAS, provided in accordance with paragraph (b) of CS ADR-DSN.C.215, is a type of arresting system consisting of high energy absorbing materials of… 14. ## [GM1 ADR-DSN.C.236 Engineered Materials Arresting System (EMAS)](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-c-runway-end-safety-area/gm1-adr-dsn-c-236) Engineered materials: The materials are tailored to specific mechanical properties and are referred to as engineered materials. 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