System optimality

System optimality refers to designing or managing a system so that it works in the most efficient way possible for everyone involved. In transportation, for example, it means organizing traffic flow so that overall travel times and congestion are minimized, benefiting all users collectively. It aims to find the best balance and distribution of resources or actions to maximize overall performance and reduce waste or delays, rather than just optimizing individual parts or users. This approach ensures the entire system functions smoothly and efficiently for the greatest good.