- Railways account for 70% of journeys via season tickets in Mumbai, with ridership expected to remain steady until 2020-2021. Metro ridership is currently 0.3 million trips per week day and growing 5% annually. Buses have the largest ridership at 3.5 million daily trips, with 20% using season tickets. - Several infrastructure projects are upcoming like coastal roads, a high-speed rail, and expanding the metro system to over 200km. This is needed to address Mumbai's growing population and traffic issues. - Solutions proposed include double-decker trains to increase capacity without energy costs, an elevated express railway, and controlled expansion outwards as the city grows.