What societal developments coincided with the shift toward orderly, single-file queuing in the 18th and 19th centuries?

Answer

The rise of large-scale retail and public services

The increase in urban density and the rise of large-scale retail and public services necessitated a more efficient and less conflict-ridden method of handling customer flow.

What societal developments coincided with the shift toward orderly, single-file queuing in the 18th and 19th centuries?
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