よくわかんないけど、wikipediaによると、路線設計最高速度は250km/hで、当面の営業運転最高速度は230km/hっぽい？＞＜
High-speed rail in Egypt - Wikipedia
https://en.wikipedia.org/wiki/High-speed_rail_in_Egypt

"Green line"
"Design speed of the new railway line is going to be 250 km/h, while high-speed trains are going to reach 230 km/h during normal service.[12]"