The continued increase in passenger numbers on suburban trains (in 1907 there were 7.05 million) made the four-track extension of the northern railway, separated for long-distance and suburban traffic, also north of the station Schönholz-Reinickendorf required. The track was laid on a dam to allow a level-crossing of the road traffic.
As passenger numbers continued to grow on suburban trains (reaching 7.05 million in 1907), it became necessary to extend the northern railway with an additional four tracks, separating them for high-speed and local services, located north of the Schönholz-Reinickendorf station. The new track was built on a dam to enable safe crossing of road traffic.