NASHVILLE (AP) - Nashville's under-construction convention center has booked more than 600,000 room nights.

The Nashville Convention & Visitors Bureau says the goal is 1 million room nights for the new center prior to its opening in 2013. The 600,000 represents 65 individual meetings.

The new convention center will be roughly three times the size of the existing one just a couple of blocks away in Nashville's downtown entertainment district. The average size of the conventions already booked in the new facility is 6,800.

According to a news release from the bureau, convention planners book their meetings several years ahead of their date.