Actually not. German supermarkets use multiple queues for multiple cashiers. Studies have shown that a single queue feeding multiple cashiers is the most effici

Actually not. German supermarkets use multiple queues for multiple cashiers. Studies have shown that a single queue feeding multiple cashiers is the most efficient method. A single queue feeding 3 cashiers is 3x faster than 3 single queues: https://www.wsj.com/articles/SB10001424052970204770404577082933921432686 https://www.wsj.com/articles/SB10001424052970204770404577082...