The phrase "arrival stage" is correct and usable in written English.
It can be used to refer to a specific phase or point in a process where something or someone arrives, often in contexts like travel, project management, or development.
Example: "During the arrival stage of the project, we will assess the initial conditions and resources available."
Alternatives: "arrival phase" or "entry stage".
As such, the aim of this study is to determine the feasibility of implementing a patient safety survey which will measure patients' experiences of their own safety relating to care transfer, in particular the discharge, journey and arrival stages of the transfer.
Two other stages had summit arrivals, stage 7 to Pescocostanzo and the demanding stage 16 climbing time trial to Plan de Corones, the summit of which the Giro had never before visited.
An early low point of the show was their arrival on stage to bombard Ms. Streisand with smarmy flattery.
This is an exhausting skill, a matchless talent, their arrival on stage often the most thrilling moment in an opera.
Among the evening's most arresting moments is the arrival on stage of Springsteen's wife, the musician Patti Scialfa.
Cumberbatch's arrival on stage was greeted with the kind of screams that normally accompany singer Justin Bieber.
The director's elderly mother even used a walking stick to delay her arrival on stage, she alleged.
Only the home page remains, cheerleading for "the world's fastest growing free market democracy" and its imminent arrival "centre stage in the global economy".
On the Poet Laureate's arrival on stage, huge cheers from 2,100 students sweep the auditorium, along with a wolf-whistle from a gallant on the balcony.
Manchester's grand old Apollo was full and the audience beside themselves with anticipation, yet Kings of Leon's arrival on stage was defiantly understated.
But on Friday they did, and the arrival on stage of the cream of at least three generations of largely British and Commonwealth singing talent was something you had to pinch yourself to take in.
