Barclays Center: "large number" of attendees at private event ("I Will Graduate Day") Monday will be on buses; number of buses unclear, but will impact traffic/parking

The Barclays Center, in its monthly event calendars circulated to neighbors, in the first few years used to announce the specifics about private events (not available to the public via tickets) as well as anticipated crowds. See graphic at right.

That fell by the wayside, and now they're parsimonious with information, simply stating "private event."

An email yesterday from the arena offered "pertinent information about the Private Event at Barclays Center on Monday, Oct. 24 from 12 to 6 pm."

What it didn't say, as I wrote earlier this month, that the Oct. 24 private event, is I WILL GRADUATE DAY NYC, a youth empowerment program and celebration of education aimed at those in grades 7-12.

Yesterday they suggested the anticipated crowds might be significant:

Due to a large number of attendees arriving via bus, we anticipate that traffic and parking in the vicinity surrounding the arena will be impacted. Buses will drop-off and stage for pick-ups on the streets that run along the perimeter of the arena. We are working closely with the event producer to ensure that buses immediately leave the premises after dropping off guests. We are also providing Pedestrian Traffic Managers at crosswalks and all bus drop-off and pick-up areas.

Please see below for tentative drop-off and pick-up times:

Buses will arrive in three intervals: 11 am, 11:30 am, and 12  pm.
Pick-ups times will be approximately 4 pm, 5 pm, and 5:30 pm.
Buses are expected to depart by 6 pm.

They didn't say how many buses were expected. 

Keep in mind that a 2015 event that included some 200 buses, which hung around the neighborhood rather than left the area, caused havoc in the neighborhood, while an event this past July, with 12 to 25 buses, left far less of an impact.

So, while the arena said, "We apologize for any inconvenience this may cause," they're not offering enough information to truly evaluate it.