Expanding Railway Systems [Transportation Systems]

The paper presents the expanding of transportation system in terms of railway system. Throughout the paper it shows the different places which the railway expand like Pittsburgh´s North Shore Connector, DART Opens Blue Line Extension, Macau, and Luas Broombridge Line etc. In Figure 1, the map showing the North Shore extension of the Pittsburgh Light Rail under the Allegheny River to serve the ballparks and the Carnegie Science Center.