Waste Collection Exercises

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Step 1: Calculate time required per week as a function of N ‣Use this equation: Y = a + b + c(d) + e + f +g ‣b is a function of the number of locations each truck visits times the collection time per location ‣Answer is given in next slide
Step 1: Calculate N using time per week for each truck Y = a + b + c(d) + e + f +g Y = (40)(60) min/wk = 2400 min/wk/truck a + e = 5 x 20 min/wk = 100 min/wk/truck b = no. loc /wk x time/loc b = 50,000 x 1 min/week/N trucks c = 2 trips/day x 5 days/week/truck d = 31 min/trip/truck f + g = 2400 x 0.15 = 360min/wk/truck
Page 1 and 2: Waste Collection Exercises
Page 3 and 4: Data ‣ Total collection time (Y):
Page 5 and 6: Step 1: Solve for c, number of trip
Page 7 and 8: Step 1: Cont’d 480 = 30 + 14c - 4
Page 9 and 10: Step 2: Calculate the number of con
Page 11: Data ‣ Total number of locations
Page 15 and 16: Step 2: Solve for N Y = a + b + c(d
Page 17 and 18: Step 3: Calculate minimum truck vol
Page 19 and 20: Data ‣ Number of days/week = 5
Page 21 and 22: Step 1: Calculate the number of sat
Page 23 and 24: Step2: Calculate the time per week
Page 25 and 26: Step 3: Calculate the number of com
Page 27 and 28: Practice Problem 1: Data ‣ Number
Page 29 and 30: Practice Problem 2: Data ‣ Length
Page 31 and 32: Variable Commingled Source Separate

Waste Collection Exercises

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