The closest airport is TF Green Airport in Providence (PVD)
Brown University is about 1 hour's drive from the Longwood medical area of Boston, MA, 1.5 hours drive from New Haven, and 3 hours from Manhattan.
The workshop location is described at this link. Information about visitor parking at Brown University is available at this link.
Brown University page on Visitor Accommodations (link)
Hotel Providence, 139 Mathewson St., Providence, RI 02903, 800-861-8990
Hampton Inn & Suites, 58 Weybosset St., Providence, RI 02903, 401-608-3500
Providence Biltmore, 11 Dorrance St., Providence, RI 02903, 800-294-7709