Studying the train operational scheme during railway construction plays a crucial role in ensuring that the facilities can run in accordance with the provisions of the infrastructure provided. This research aims to examine the operational schemes of trains at Service Lines between Betung-Sumber Agung Stations to plan train traffic management and travel routes that can be formed, employed, and conflicted, as well as the level of route loading on train frequency using the conflict rate simulation. The results revealed that eight routes could be formed at Betung Station, and all of them could be employed as the conflict rate was 0.719 and the route loading level was 0.736. Furthermore, four routes could be formed at both the Supat and Babat Supat Stations, but only two could be utilized. Their conflict rate was 0.50, and the route loading level was 0.50. Meanwhile, four routes could be formed at Sumber Agung Station, and all of them could be employed as they had a conflict rate of 0.50 and a route loading level of 0.391.