Crowd control and set-up procedures are just a few of the measures that authorities will be taking note of, as Kai Tak Arena prepares for its inaugural concert on Friday.

Authorities said around 5,500 ticket holders are expected to attend the Chill Thai Music Festival, featuring local boy band Mirror.

Commissioner for Sports George Tsoi said doors will open for concert goers at 4.30pm, with the performance set to start at 6.30pm and wrap up before 10pm.

Tsoi said the arrangements for sporting events and concerts differ significantly.

"For concert events, it involves more set-ups, the stage arrangement, which we do not have during the sports events. There's also rehearsals that we are going to test for a concert event," he said.

"Apart from the above, the spectators' arrival and dispersal patterns of concert events are quite different from typical sports events."

Tsoi said concert goers should have already gotten their tickets in advance, adding that there will be no on-site ticket sales.

"For the ticketing arrangements for these concerts, they are all distributed through the events organisers, so participants and spectators should have got their tickets by now. They are not required to get their tickets on site," he said.

"I think this arrangement would ensure orderly pedestrian flow during the concerts and during the starting time of the concerts."

He also reminded attendees that umbrellas, outside food and drink, water bottles, professional photography equipment, and support signs larger than 38cm long, 20cm wide and 30cm high are prohibited.

Tsoi added these restrictions align with those at concerts held at AsiaWorld-Expo and the Hong Kong Coliseum.

Meanwhile, Kai Tak Mall had its soft opening on Wednesday, featuring a sports recreation facility and around 200 shops with over 80 percent leased.

Crystal Wong, head of retail at Kai Tak Sports Park, said the mall would discuss flexible operating hours with merchants during major events and performances, adding the mall can maintain a steady flow of visitors before and after shows and games.

"The mall allows customers to come earlier to shop and enjoy meals. They don't have to come last minute just for their event. It's to give people more diverse options and creates a better experience," she said.