The route from Siirt to Coltepe is primarily serviced by the regional train, which operates at speeds of 80 km/h (50 mph). The journey on this line takes approximately 4 hours, covering a distance of around 320 kilometers (199 miles). Travelers can expect a simple yet comfortable experience, with standard seating available on board. While there are no high-speed train options on this route, the regional service connects passengers to the beautiful landscapes of southeastern Turkey, offering an authentic glimpse of the area during the trip. This train is essential for those looking to explore the more remote regions, as it serves several small towns and cities along the way, making it a practical choice for both locals and travelers.