What does DART stand for in relation to the transport system running along the coastline of Dublin Bay?

DART stands for Dublin Area Rapid Transit, which accurately reflects its function as a rapid transit system designed to facilitate efficient movement of passengers along the coastline of Dublin Bay. This system connects the city center to surrounding suburban areas, making it an essential part of the public transport network. The use of "Rapid Transit" in the name indicates that it is intended to operate quickly and frequently, thus providing a reliable form of transportation for commuters and visitors alike.

The name also emphasizes the service’s focus on the Dublin area, highlighting its regional significance. This is important for understanding how regional transport networks are structured to meet the needs of urban populations. Other choices presented do not appropriately describe the system, as they either misidentify its function or include incorrect terminology, making Dublin Area Rapid Transit the only accurate answer.