Harry: Platform 9 ¾? But, Hagrid, there must be a mistake. This says Platform 9 ¾. There’s no such thing. Is there? Hagrid?
Harry: Excuse me sir, can you tell me where I might find Platform Nine and Three-Quarters?
Station Guard: Nine and Three-Quarters? Think you’re being funny do ya?
Although the new signage may concern some at Hogwarts, who enjoyed the previous discreteness of the platform, the new sign is likely to help many new students who are making their first time visit. Naturally, no muggles will be able to pass through the wall and access the actual platform itself.
Lydia: Excuse me sir, can you tell me where I might find Platform Nine and Three-Quarters?
Station Guard: Walk along that way and it’s right after the sandwich stall.
This year I was able to tick off item #29 on my “To Do” list, and visit Platform 9 ¾ and Kings Cross Station for myself.
Trivia: J. K. Rowling chose King’s Cross Station as the portal that would take Harry to Hogwarts because this was where her parents met on a train to Scotland