High torque: As a train is considered a heavy load, DC motors are well suited due to their high torque. This means that the motor can drive a consistent level of power over longer periods of time, ideal for trains that operate over 12 hours per day.

Trains possess some of the highest torque outputs of any land-based vehicles, which is essential for overcoming the immense "starting resistance" of a multi-thousand-ton load. In 2026, modern Diesel-Electric and fully Electric locomotives are the masters of torque. This is because electric motors provide 100% of their maximum torque at zero RPM, allowing a train to begin moving a massive line of freight cars from a dead stop without the need for a traditional multi-gear transmission. A single heavy-haul locomotive can produce over 100,000 to 200,000 foot-pounds of torque. This "tractive effort" is what allows a train to climb steep mountain grades and maintain momentum. However, the limitation isn't just the torque itself, but "adhesion"—the ability of the steel wheels to grip the steel rails without spinning. This is why locomotives are incredibly heavy (to increase friction) and often use sanders to drop sand on the tracks to help that massive torque translate into actual movement rather than just sparks and wasted energy.