Backers say the regional project can reduce traffic on Interstate 91 and promote economic development by bringing high-speed passenger rail service to inner cities.
But Mary Meixell (mike-'SELL), a management professor at Quinnipiac University in Hamden, Conn., said questions remain such as cost and whether motorists can be persuaded to swap their cars for a train seat.
Officials have a meeting in Hartford on Thursday to give an update.