The Commonwealth Transportation Board is hosting a series of meetings this month to introduce its Six-Year Improvement Program, which allocates $12.9 billion to nearly 3,000 transportation projects over the next six fiscal years beginning in July. The Commonwealth Transportation Board is hosting a series of meetings this month to introduce its Six-Year Improvement Program, which allocates $12.9 billion to nearly 3,000 transportation projects over the next six fiscal years beginning in July.