What specific limitation of early driving did the adoption of the speedometer help address for motorists?

Answer

The challenge of operating a vehicle without objective knowledge of actual travel speed

Before the widespread adoption of the speedometer, drivers were forced to rely on purely subjective measures to determine their pace, such as the sound of the engine, the feel of wind resistance, or tracking their progress against landmarks like fence posts and mile markers. This lack of objective data made it difficult to manage speed, avoid legal trouble, and plan travel times accurately. The speedometer provided an objective, non-emotional metric that allowed drivers to control their machine effectively and understand exactly how fast they were moving, thereby removing the guesswork inherent in early motoring.

What specific limitation of early driving did the adoption of the speedometer help address for motorists?
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