Four public meetings have been set across Hall County in June on the proposed new 1 percent sales tax for transportation improvements. The Gainesville-Hall Metropolitan Planning Organization is sponsoring the meetings, with the aim to explain particulars of the tax, such as the projects it would pay for if approved. “These meetings will strictly serve as an opportunity for the public to be educated on the project list and (state Transportation Investment Act) process,” said Srikanth Yamala, the MPO’s transportation planning manager.