Why was Helmuth von Moltke interested in the routes of new railways in the 1840s?

Helmuth von Moltke was among the first senior military officers to recognize the transformative potential of railways for the deployment, movement, and supply of armies on a large scale.1

During the 1840s, he identified that railways could overcome the traditional limitations of road communications, which were often restricted by seasonal unreliability and poor infrastructure. By analyzing the routes of new railways, Moltke understood that military forces could be moved much faster and in greater numbers across vastly wider fronts than previously possible. This insight fundamentally changed his conception of warfare, shifting the focus from small, localized battlefields to expansive fronts extending over hundreds of miles. Consequently, he realized that this new capability required highly trained staff officers capable of managing complex railway-movement tables and logistical supply chains.1