[osivertsson]

I'm a software developer working with embedded devices, but I sometimes hear snippets of conversations regarding logistics. The story can be something like this:

The device is manufactured, flashed, and packaged in China, and normally shipped by sea. But now demand has gone up, or production has been slightly delayed, and we need to get devices to customers. Maybe we will run out of stock in 1-2 weeks. We can't really (only) load a container ship and not be able to get devices to customers for a couple of weeks when demand is high. The logistics team then tries to ship limited quantities by air and/or train to bridge the gap until the next container ship arrives.

Hence my (very limited) experience tells me there is definitely a market for something like trains with time and cost in between air freight and container ships.