Hinduism. The Bhagavad Gita is actually one of the most famous Hindi scriptures of all time. It's also a philosophical classic that was known throughout the whole world, and not just for its respective belief system.
Answer: with this practice, Ford introduced Work Specialization/ Division of labor.
Explanation: Work Specialization or division of labor is the separation of a task(s) to different workers. In this method of work, efficiency is high.
Initially, the whole car was made by a single person but with Ford's method, one car can be made by more than one person. This is important as the workers will play to their strengths and become experts because of repetition.
The one way signs
Keep Right, Keep left, and Divided highway signs
Turn Prohibition Signs
Bridge signs and Weight Limit Signs