The Central Railway has implemented a significant upgrade to the Signal Location Announcement System (SILAS) across all local trains in Mumbai, aimed at improving safety and operational efficiency. This GPS-based system acts as an electronic co-pilot for motormen, announcing the number and position of upcoming signals, whether they are on the left, right, or extreme sides. With over 2,300 local train services operating daily, motormen face immense pressure due to the close proximity of signals, often just 400-500 metres apart. The upgraded SILAS system provides audio alerts 350 metres and 250 metres before a signal, ensuring that motormen do not miss critical signals. It also includes features to announce upcoming halt stations and monitors motormen's driving behavior to enhance safety further. This initiative is part of the Central Railway's goal to achieve 'Zero SPAD' (Signal Passed At Danger) incidents, significantly improving the safety of suburban train operations in Mumbai.