Complex sentence: The cars were arranged as 6 rows with one person per row for a total of 18 riders per train, giving the ride a total maximum capacity of 72 riders, or 1174 riders per hour.
Split into simpler sentences: The cars were arranged as 6 rows with one person per row for a total of 18 riders per train. Giving the ride a total maximum capacity of 72 riders, or 1174 riders per hour.