Production Line (2017)

A queue of unfinished cars makes an inefficient layout wonderfully visible. Break complex assembly jobs into specialised stages, balance their capacity and check whether parts can reach the stations that need them. You build the factory before you inherit its problems, and research keeps giving you reasons to rearrange it. Choose this for a repair measured in smoother flow and a healthier margin, with the slight embarrassment of knowing who designed the original bottleneck.