By Justin Kenny of The News-Sentinel
INDIANAPOLIS – It is expected that close to 100,000 fans will pile into the Indianapolis Motor Speedway on Sunday for the Brickyard 400, one of NASCAR's premier events on its schedule.
Yet discussion throughout media circles and in living rooms around the country will once again center on the wealth of empty seats around the track.
The Indianapolis Motor Speedway is the largest sports venue in the world, with a seating capacity estimated to be over 250,000 and an infield capable of accommodating another 150,000.
The second-largest track where NASCAR races in terms of capacity is the half-mile Bristol Motor Speedway at 160,000, a venue that has struggled with fan turnout in recent years.
In fact, attendance throughout the series has been down. According to NASCAR estimates, fan turnout was 4.67 million in 2005, an average of 129,722 per event. In 2012, the total had dipped to 3.52 million, an average of 97,722. Read the rest here