Nora and Gary,
Look at it from this point.
Lets say you own and run Ed Bobs widget fabrication, and you make left and right handed widgets.
Now there are only six or seven widget makers in the US, and your the only one that makes left handed widgets.
You sell the widgets to a widget exporter in Chicago, and your business is in
Houston.
You only produce 20 to 25 pallets of widgets a week.
If you shipped by rail, you would need to have someplace to store your widgets, till you had enough to justify shipping by rail, it makes no sense to pay for a boxcar that holds 100 pallets, only to put 25 pallets in it, and your buyer in Chicago, who ships overseas weekly, needs a steady supply of widgets, delivered on a just in time schedule, because he too has no place to store large amounts of stock, yet still needs to keep his business fluid and profitable.
So, you contract with a trucking/shipping company, who makes regular truck runs every day from Houston to Chicago, and when you finish with the order for the left handed export widgets, you pick up the phone, give them a call, they drive up to your loading dock, your forklift operator loads the pallets into the back of the trailer, the rest of which is filled with shippments from other companies in your situation.
Off to Chicago.
At the Chicago end, the truck backs into the dock at the export company, they unload their widgets, the truck leaves, on its way to it’s next delivery, and its all done, in a matter of days.
Their exports stay fluid, your business stays fluid, you can plan your production runs accordingly, because you dont have to worry about two or three types of delivery service, it goes from your dock to theirs in one step.
You dont have to warehouse widgets, and neither does you exporter.
Most of the 18 wheelers you see on the highway are NOT full of one product for one shipper only, they are the LC