Train loading and unloading

This may mean 2 very different things: the loading and unloading of goods at train loading facilities ('loading bay' or 'loading dock'); or the total number of passengers carried by a train. Train loading may be even, when the same number of passengers is sitting in every coach, or uneven, when some coaches are fuller than others; the load factor may be higher than 100% if all seats are occupied and some passengers are standing.