Why can't the go train go faster?

Understanding the Speed Limitations of the GO Train

The GO Train, a vital commuter rail system in the Greater Toronto Area, has a maximum speed of 144 km/h (90 mph). This may seem relatively slow compared to other high-speed rail lines, but there are significant reasons for this limitation.

Track Infrastructure:

The primary factor limiting the speed of the GO Train is the existing track infrastructure. The tracks are designed with a maximum allowable speed, which is determined by factors such as rail curvature, track alignment, and the condition of the rails and roadbed. Exceeding this speed limit could compromise safety and damage the tracks.

Grade Crossings and Signal Spacing:

The GO Train operates through numerous grade crossings and has relatively close signal spacing. At grade crossings, trains must slow down to ensure the safety of pedestrians and motorists. Similarly, the spacing of signals along the tracks determines the maximum speed at which trains can travel safely.

Curvature and Alignment:

The tracks on which the GO Train operates feature curves and changes in alignment. These curves limit the speed of the trains, as they can create lateral forces that could destabilize the train if traveling at a higher speed.

Impact on Average Speed:

While the posted speed limit may be 144 km/h, the actual average speed of the GO Train is often lower due to these track limitations. Trains must frequently slow down for grade crossings, signals, and curves, resulting in a slower overall journey time.

Conclusion:

While the GO Train’s speed may seem frustratingly slow compared to walking at times, it is important to recognize the safety and infrastructure constraints that limit its maximum velocity. The track infrastructure, grade crossings, signal spacing, and track curvature all play a role in ensuring the safe and reliable operation of the GO Train.