Southern Railway has installed digital display boards at almost 50 major railway stations in Chennai. These include Velachery, Palavanthangal, Chromepet, Pallavaram, Nungambakkam, Villivakkam, Minjur, and Tiruvottiyur. The bright LED boards are easy to read even during busy hours and different lighting. A senior railway official said the boards aim to replace old timetable charts by showing accurate train arrivals. However, commuters complain the boards only show timetable data, not real-time suburban train arrivals which often differ. Before these boards, Southern Railway announced suburban train arrivals at busy stations like Guindy, Mambalam, Egmore, Perambur, Avadi, and Tiruvallur. Commuter T. Ashutosh from Chepauk station said, "The timings on the digital display boards are the same what has been published and so it is not of any big use to the commuters." Railway activists note that Chennai Metro uses GPS on trains to provide exact arrival times on digital boards. The city's public bus service, MTC, has tested GPS-linked digital boards at over 18 stops and plans to expand to 600 bus stops. An assistant loco driver revealed GPS is present in about 50% of EMU suburban train rakes. These trains announce next stations inside the coaches using digital boards. Commuters hope Southern Railway will soon upgrade these station boards to show live train arrival updates, similar to metro and bus services.