How did the union having 13000 more miles of railroad that the south help the north in the civil war?

The Union's 13,000 additional miles of railroad during the Civil War greatly enhanced its logistical capabilities, allowing for the efficient movement of troops, supplies, and equipment across vast distances. This extensive rail network facilitated rapid reinforcement of Union armies and the swift transport of resources to the front lines, contributing to strategic advantages in battles. In contrast, the South's limited railroad infrastructure hindered their ability to mobilize and sustain their forces effectively, ultimately impacting their war efforts.