Transportation was standardized under the Qin in several ways to enhance efficiency and control across the empire. The key aspects of this standardization included:
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Roads were the same width: The Qin dynasty established a uniform width for roads, which facilitated smoother travel and transportation across the vast empire.
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Carriages were the same height: Standardizing the height of carriages allowed them to navigate through roads and bridges without hindrance, improving movement and logistics.
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Everyone paid the same road tax: This ensured a standardized economic structure regarding the use of roads, making it fair and consistent across different regions.
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Axles of carriages were the same length: By standardizing axle lengths, the Qin dynasty ensured that all carriages could use the same roads without issues, promoting uniformity in transportation.
Overall, the Qin's standardization of transportation methods helped to unify the empire and improve trade, communication, and military movement.