By MyFM’s Rick Michaels- The Holliston Planning Board will re-organize tonight at the start of their scheduled meeting. On the agenda, will be a discussion on adult use marijuana establishment zoning and regulation. Members will also get a status update and field change requests for the Highlands at Holliston. Than a public hearing will continue at tonight’s meeting on a modification to the subdivision plan for the Constitution Village construction project. As for another construction project now completed, the Washington street corridor improvements project residents and motorists traveling through downtown Holliston will encounter new traffic signals that are on “flash mode” at this time. And will remain that way until next Tuesday or Wednesday, when the operation of the new traffic signals will start.