Runway arrangement

Abstract

A runway arrangement comprising: a first runway section ( 202 - 1 ) designated as a landing runway section; a second runway section ( 202 - 2 ) designated as a take-off runway section; and a sterile safety area ( 210 ); wherein the first and second runway sections are linked by the sterile safety area ( 210 ); the runway arrangement comprising a missed approach point for aircraft due to land on the first runway section, displaced from the start of the second runway section ( 202 - 2 ) by a distance greater than H/tan θ 1 ; where H is a safe turning height and θ 1 is an angle of ascent following a missed approach; wherein H is greater than 150 m and θ 1 is greater than 2°.

1 . A runway arrangement comprising:
 a first runway section;   a second runway section; and   a sterile safety area that is marked as not to be used for taxiing;   wherein the second runway section is laterally offset from the first runway section; and   wherein the sterile safety area comprises a first portion in prolongation of the first runway section and a second portion in prolongation of the second runway section, the first portion longitudinally overlapping with the second portion.   
     
     
         2 . The runway arrangement according to  claim 1  wherein the first runway section is designated a landing section directed towards the overlapping section and the second runway section is designated a take off section directed away from the overlapping section. 
     
     
         3 . The runway arrangement according to  claim 1  wherein the overlapping section is between 300 m and 900 m in length. 
     
     
         4 . The runway arrangement according to  claim 1  wherein the second runway section is laterally offset from the first runway section by at least one of: between a quarter and double the width of the first runway section, and between 50 m and 100 m. 
     
     
         5 . The runway arrangement according to  claim 1  further comprising a taxiway outside of the sterile safety area so as to allow access across the first runway section to the proximal end of the second runway section. 
     
     
         6 . The runway arrangement according to  claim 1  wherein the second runway section is substantially parallel to the first runway section. 
     
     
         7 . The runway arrangement according to  claim 1  wherein the second runway section is disposed at an angle to the first runway section and/or wherein the second runway section is disposed at substantially 0.25-10 degrees to the first runway section. 
     
     
         8 . The runway arrangement according to  claim 1  wherein the first portion and the second portion of the sterile safety area overlap along the entirety of the length of the first portion and the second portion. 
     
     
         9 . The runway arrangement according to  claim 1  wherein the first portion and the second portion are contiguous. 
     
     
         10 . The runway arrangement according to  claim 1  wherein the first and second portion are unconnected and/or wherein the first portion comprises a first safety area and the second portion comprises a separate second safety area. 
     
     
         11 . A runway arrangement comprising:
 a first runway section;   a second runway section extending substantially in prolongation of the first runway section; and   an intermediate safety area that is marked as not to be used for taxiing;   wherein the first runway section and the second runway section are linked by the intermediate safety area.   
     
     
         12 . The runway arrangement according to  claim 11  wherein the first runway section is designated a landing runway section and the second runway section is designated a take-off runway section. 
     
     
         13 . The runway arrangement according to  claim 11  wherein the intermediate safety area is at least 175 m in length. 
     
     
         14 . The runway arrangement according to  claim 11  wherein the intermediate safety area is between 240 m and 600 m in length. 
     
     
         15 . The runway arrangement according to  claim 11  wherein an airport terminal area is situated adjacent the intermediate safety area. 
     
     
         16 . The runway arrangement according to  claim 11  comprising a landing threshold which is substantially further along the runway than the start of the runway. 
     
     
         17 . The runway arrangement according to  claim 16  wherein the landing threshold is between 1 km and 5 km distal from the start of the landing runway section. 
     
     
         18 . The runway arrangement according to  claim 11  further comprising a taxiway outside of the intermediate safety area so as to allow access across the first runway section to the proximal end of the second runway section. 
     
     
         19 . A method of constructing a runway arrangement, the method comprising:
 providing a first runway section;   providing a second runway section;   providing a sterile safety area; and   marking the sterile safety area as not to be used for taxiing;   wherein the second runway section is laterally offset from the first runway section; and   wherein the sterile safety area comprises a first portion in prolongation of the first runway section and a second portion in prolongation of the second runway section, the first portion longitudinally overlapping with the second portion.   
     
     
         20 . A method of constructing a runway arrangement, the method comprising:
 providing a first runway section;   providing a second runway section extending in prolongation of the first runway section;   providing an intermediate safety area such that the first runway section and the second runway section are separated by the intermediate safety area; and   marking the intermediate safety area to indicate that the intermediate section is not available for taxiing.