Waste Collection Exercises

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Practice Problem 1 ‣If “vehicle use efficiency,” n, is defined as the weekly vehicle use time in min/wk divided by the length of the work week in min/week, calculate n for a manually loaded collection system using the following information:
Practice Problem 1: Data ‣ Number of days per week = 5 ‣ Average length of work day = 8 hours ‣ Off route time = 15% of the day ‣ Time to and from garage = 15 min each ‣ At disposal site time = 12 min/trip ‣ Drive to and from disposal site (total) = 45 min/trip ‣ Compactor volume = 30 yd 3 ‣ Number of compactors = 3 ‣ Volume/location = 0.35 yd 3 ‣ Pick up time per location = 1 min ‣ Volume collected per week = 1500 yd 3 ‣ Compaction ratio = 2.5
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 and 12: Data ‣ Total number of locations
Page 13 and 14: Step 1: Calculate N using time per
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: Step 3: Calculate the number of com
Page 29 and 30: Practice Problem 2: Data ‣ Length
Page 31 and 32: Variable Commingled Source Separate

Waste Collection Exercises

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