抄録
Transit networks such as those of buses, subways, express buses, and regional railways have long served as the backbone of public transportation. In order for a transit network to attract more users, its efficiency or convenience, among other things, should be maintained at an acceptable level. Although there could be several ways to measure the efficiency or convenience of a transit network, this paper proposes the concept of connectivity, which quantifies how well or easily users can access from one point of a transit network to other points. In particular, this paper aims to develop a quantitative model for measuring the level of connectivity of a node of a transit network. By applying the model to subway networks in South Korea, we compute connectivity indexes of subway stations from which connectivity indexes of subway lines are also derived. The connectivity index of a subway line considering transfer is also calculated.
