Efficiency and Scope

Line Efficiency

Line efficiency is total task work divided by total station time.

highlighted = computed this step

Total work

Total task work is 8 minutes.

total work=8\text{total work}=8
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3

Station time

Total station time is 12 minutes.

total station time=12\text{total station time}=12
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3

Efficiency

Efficiency is 2/3.

8/12=2/38 / 12 = 2/3
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3