Cycler Station

In shipping, an object, usually a cargo platform or way station, placed in an elliptical orbit between the two locations being serviced.

At its most developed, the elliptical orbit is very close to the destinations at both ends, allowing cargo or passengers to simply circularize their orbit to reach the destination, saving the delta-V needed to attain the transfer orbit in the first place.

Another benefit is the facilities needed for the trip, such as passenger accommodations or cargo holds, are already in place, and need not be launched from the embarkation point.

To be resource-effective, the route must support enough traffic to justify maintaining the facilities at the cycler station.

History
Because the main Bountiful Sky hab was placed in an elliptical orbit between the Earth and the Moon, it was technically a cycler station, thought there was still a significant delta-V requried to travel from the hab to either the Moon or Earth.