The diagram illustrates a railway network featuring six track points labeled A, B, C, D, E, and F. Points B and E are junction points, with switch blades indicating the current turnout settings toward point D. Inactive turnout branches are shown with dashed lines. The network includes broad-gauge tracks represented by heavy line pairs, meter-gauge tracks by lighter line pairs, and dual-gauge tracks by combined line segments. The dotted rectangle marks station s1, encompassing platform points C and D. Track distances are labeled along each segment. Train t1, a broad-gauge train, departs from point A, while train t2, a meter-gauge train, departs from point F. The diagram also shows the initial positions and headings of the trains.Railway network with six track points (A–-F). Circles denote track points, diamonds denote the junction (turnout) points B and E, with the curved switch blades showing the current turnout setting toward D, and dashed lines indicating the inactive turnout branches. Line styles distinguish the gauge of each segment: heavy line pairs denote broad-gauge tracks, lighter line pairs denote meter-gauge tracks and combined line segments denote dual-gauge tracks (rendered here with three lines for illustration). The dotted rectangle marks station s1, comprising the platform points C and D. Track distances are labeled along each segment. Train t1 (broad gauge, 60 km/h) departs from A and train t2 (meter gauge, 66 km/h) from F, with icons indicating initial positions and headings