Step 5 Balanced number trucks = 34.8 min 4.8 min = 7.25; round down to 7 trucks. Step 6 Truck production 9.5 cy/cycle 34.8 min/cycle 50 min 13.7 cy/hr. hour Step 7 Production 6 trucks: 13.7 cy/hr × 6 trucks = 82.2 cy/hr 7 trucks: 13.7 cy/hr x 7 trucks = 95.9 cy/hr 8 trucks: 13.7 cy/hr × 8 trucks = 109.6 cy/hr, loader controls at 107 cy/hr 9 trucks: 13.7 cy/hr x 9 trucks = 123.3 cy/hr, loader controls at 107 cy/hr A balance curve is developed to illustrate how the number of trucks affects production. 160 140 cy/hr 120 Loader production 100 80 80 60 60 40 40 20 20 Truck production Balance point 2 4 6 Trucks 8 10 12

Step 5 Balanced number trucks = 34.8 min 4.8 min = 7.25; round down to 7 trucks. Step 6 Truck production 9.5 cy/cycle 34.8 min/cycle 50 min 13.7 cy/hr. hour Step 7 Production 6 trucks: 13.7 cy/hr × 6 trucks = 82.2 cy/hr 7 trucks: 13.7 cy/hr x 7 trucks = 95.9 cy/hr 8 trucks: 13.7 cy/hr × 8 trucks = 109.6 cy/hr, loader controls at 107 cy/hr 9 trucks: 13.7 cy/hr x 9 trucks = 123.3 cy/hr, loader controls at 107 cy/hr A balance curve is developed to illustrate how the number of trucks affects production. 160 140 cy/hr 120 Loader production 100 80 80 60 60 40 40 20 20 Truck production Balance point 2 4 6 Trucks 8 10 12

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter13: Evaluating Transportation Alternatives

Section: Chapter Questions

Problem 7P

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