The Gainesville-Hall Metropolitan Planning Organization, which serves as Hall County’s lead transportation planning group, is holding a couple of key meetings this week. Its Technical Coordinating Committee, set to meet at 10:30 a.m. Wednesday, will address proposed changes to the MPO’s 2012-17 transportation plan. For one, right-of-way acquisition costs have increased to $698,666 from $406,994 for a project involving a new bridge on Ga. 53/Dawsonville Highway at the Chestatee River and nearly $3.7 million from $3.2 million for a project involving the widening of Ga. 13/Atlanta Highway from Sawnee Avenue to Ga. 347/Lanier Islands Parkway.The Ga. 347 project runs through Buford, with stretches in Gwinnett and Hall counties.