The MBTA and MassDOT announced they will provide shuttle bus service to Somerville’s 18th annual “What The Fluff” Festival on Sept. 23, while Green Line service to Union Square Station is shut down for the second year in a row, transportation officials said in a public meeting on Tuesday.

“What the Fluff?”, this year’s edition of Somerville’s Fluff Festival, was one of the strangest events I have ever attended in my entire life. The first thing I saw as I entered a crowded Union...