I have one continuous loop that runs around SH, thru the mountains, then all thru Springfield with a number of long runs (with returns) along the edges of town - a total of about 8 minutes including station stops. I also have other trains that run on much shorter tracks - I would guess those are in the 2-3 minute range each. And I have somewhere around 10K track pieces in storage. The item limit is the only thing keeping me from adding more track to my monorail system as building it is the main reason I kept on with TSTO.