Dropships and shuttles would be quite useful for transporting more crew and resources at the same time to and from other ships and stations.
Dropships
Dropships could also be used as boarding craft, with specialized versions having an explosive charge or ram on the front to board enemy ships or stations forcibly
Dropships would require a hangar to dock on large enough ships to support them. These hangars can either be side mounted with the mouth of the hangar facing open space or roof mounted with the dropship flying over and dropping into your ship.
An advantage to having your dropship on the side would be faster deployment times while having the roof hangar would allow for more defences.
Dropships can be armed as well. These armaments could include smaller missiles or a auto cannon similar to PD, mostly for destroying other dropships or very small craft it may encounter.
Each hangar would hold a single dropship as well as fuel tanks, and ordinance for them.
Shuttles
Shuttles are similar to dropships but smaller. They could also act as escape craft in the event of abandoning your ship. These are too small to be armed though.
Shuttles would have a similar hangar to the dropship but can only be launched from a side facing hangar.
Each hangar would hold 2 shuttles and fuel tanks for the shuttles.
Fuel for these would just be batteries to power the hangars while the small craft themselves would be powered by a special fuel perhaps.
Trams
Tram segments would be like the moving walkways used for accelerating crew around your ship, however tram systems will be beneficial for transporting more at the same time and stop crew clumping.
They would be powered by a rail system having power deposited into an end segment at the end of the tram line.
(Tram design made by @compact stone )
(shuttle docking. Green ship for shuttle concept)