Why were time zones and standardization of tracks important for railroads?

They offered greater efficiency in production, safety, and scheduling.

Explanation:

The establishment of time zones and the standardization of tracks were two important developments for railroads. Before the standardization took place, each town had its own time zone, which made it very difficult for the railroad to establish its departure and arrival times. It also made it difficult for people to make their plans. With standardization, railroads became more efficient.

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