This railway route is the "Northern Line", connecting Bangkok to Chiang Mai while passing through key provinces in the central region. The section passing through Lopburi is unique because the trains run directly through the historic city center, offering views of ancient sites from the windows. Currently, the Double Track system is being developed to increase transportation efficiency and reduce travel time, ensuring faster and more punctual trips. There is also a bypass route for freight trains to minimize the impact on significant historical landmarks and the busy old city area. It is a route characterized by beautiful scenery and a nostalgic atmosphere, seamlessly blending with modern infrastructure development for the future.