Team Track, Transload site, Public Delivery Track, or Unnamed Siding Number 3... No matter what you call it, it's a great place to create an always changing scene.
These general purpose tracks allow for the transfer of merchandise to/from freight cars by customers whose shipping needs aren't sufficient to require a private siding. Pretty much any kind of rail car could be spotted on a team track: a flatcar with machinery or tractors, a reefer filled with fresh produce, or a gondola waiting to be filled with scrap. Even railway MOW equipments might make a layover here for a while.