Keihin Express Railway company introduced a device which detects how broadly a staff member smiles by calculating the curve of the mouth.
The company's station employees are encouraged to test their smile before they head to the platforms and ticketing areas to assist passengers.
Smile tests for transport workers
10:54 GMT 23.07.2009 (Updated: 19:50 GMT 19.10.2022)
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Smile tests for transport workers
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Keihin Express Railway company introduced a device which detects how broadly a staff member smiles by calculating the curve of the mouth.
The company's station employees are encouraged to test their smile before they head to the platforms and ticketing areas to assist passengers.