Before revision: Line 1 continues a further 5 km from point B to a terminus at point C. Line 2 similarly continues a further 5 km from point B, but to a different terminus, at point D. The entire network is double tracked, apart from a long single track from point B to the depot (car barn).
After revision: Line 1 continues a further 5 km from point B to a terminus at point C. Line 2 similarly continues a further 5 km from point B, but to a different terminus, at point D. The entire network is double ed, apart from a long single track from point B to the depot (car barn).