
π Railways & Public Transport Β· Gantt
A simplified 4-year plan for building a new metro line, from approvals and land acquisition to civil works, systems and commercial opening.
Drawing diagramβ¦
Gantt chart for a 20 km metro line: detailed project report and approvals, land acquisition, tunnel and viaduct civil works, station construction, track laying, electrification, signalling and telecom, rolling stock delivery, trial runs, safety certification and commercial opening.
gantt title New Metro Line - 20 km dateFormat YYYY-MM-DD axisFormat %Y section Planning DPR and approvals :a1, 2026-04-01, 180d Land acquisition :a2, after a1, 300d section Civil works Viaduct construction :b1, after a1, 540d Tunnel boring :b2, after a2, 480d Station construction :b3, after a2, 600d section Systems Track laying :c1, after b1, 180d Electrification :c2, after c1, 150d Signalling and telecom :c3, after c1, 240d Rolling stock delivery :c4, 2028-06-01, 240d section Opening Trial runs :d1, after c3, 90d Safety certification :d2, after d1, 45d Commercial opening :milestone, d3, after d2, 0d
A railway reservation system in the style of IRCTC: seat inventory per train and class, waitlists, Tatkal quota, payments and e-tickets.
The states of a train ticket from booking to journey, including RAC and waitlist confirmation and cancellation.
How a metro fare is charged with a smart card or bank card: tap in at the entry gate, tap out at the exit, fare by distance and balance update.
How a city bus app shows live bus positions and arrival times: GPS devices on buses, a prediction model and updates to apps and stop displays.
How a modern railway signalling network is connected: interlocking at stations, track circuits, train control radio and the central traffic control centre.
A journey planner that combines metro, bus, suburban train and last-mile options into one trip plan with a single ticket.