The train service from Yildizeli Yht to Kocaeli primarily utilizes the regional train services that feature comfortable seating options. The journey typically takes around 3 to 4 hours, with speeds averaging between 120 km/h to 160 km/h (75 mph to 99 mph). There are no high-speed train options available directly on this route, as it caters mainly to regional traffic. The primary service operating on this route is the regional İzban train, which connects various towns and cities, facilitating local travel across the region. While the İzban offers a reliable connection, travelers should be prepared for multiple stops along the way, which may extend the overall travel time compared to a non-stop service. Passengers can expect onboard facilities such as clean seating and restrooms. However, for those prioritizing rapid transit options, it would be beneficial to consider alternative travel methods as the regional train may not provide the fastest journey.