![The 737 Handbook on X: "Pro Tip: Rapid Exit Taxiway (RET) are sorted into 4 categories under ICAO Doc 9157. Code 1 and 2 - 45° exit angle - minimum radius 275m - The 737 Handbook on X: "Pro Tip: Rapid Exit Taxiway (RET) are sorted into 4 categories under ICAO Doc 9157. Code 1 and 2 - 45° exit angle - minimum radius 275m -](https://pbs.twimg.com/media/FwZ_XNLXgAIfT3p.jpg)
The 737 Handbook on X: "Pro Tip: Rapid Exit Taxiway (RET) are sorted into 4 categories under ICAO Doc 9157. Code 1 and 2 - 45° exit angle - minimum radius 275m -
![IPSA | How CGS Labs software helped us design a rapid exit taxiway for Sarajevo International Airport | CGS Labs IPSA | How CGS Labs software helped us design a rapid exit taxiway for Sarajevo International Airport | CGS Labs](https://cgs-labs.com/wp-content/uploads/2023/06/RWY-TWY.gif)
IPSA | How CGS Labs software helped us design a rapid exit taxiway for Sarajevo International Airport | CGS Labs
![faa regulations - Is it allowed to exit the runway by opposites High Speed Taxiway? - Aviation Stack Exchange faa regulations - Is it allowed to exit the runway by opposites High Speed Taxiway? - Aviation Stack Exchange](https://i.stack.imgur.com/sort4.jpg)