CRP Collection Systems Design & Logistics 1 — Questions and Answers
Question 1: What is the primary advantage of single-stream recycling collection over dual-stream?
- Higher participation rates due to greater convenience for residents (Correct answer)
- Lower contamination levels in collected materials
- Reduced MRF processing costs
- Higher commodity revenues per ton
Correct answer: Higher participation rates due to greater convenience for residents
Single-stream collection (all recyclables in one bin) maximizes convenience, which research consistently shows increases household participation and set-out rates.
Question 2: What does 'route optimization' mean in recycling collection logistics?
- Designing collection routes to minimize travel distance, time, and fuel consumption (Correct answer)
- Choosing the best materials to collect curbside
- Optimizing the size of recycling bins
- Selecting the fastest MRF for processing
Correct answer: Designing collection routes to minimize travel distance, time, and fuel consumption
Route optimization uses mapping software and data analysis to sequence collection stops in the most efficient order, reducing operational costs and vehicle emissions.
Question 3: Which collection system type best serves low-density rural areas with limited collection frequency?
- Drop-off center or bring system (Correct answer)
- Curbside automated cart collection
- Dual-stream curbside bins
- On-call bulk pickup
Correct answer: Drop-off center or bring system
Drop-off centers are cost-effective for rural areas where widely spaced homes make door-to-door curbside collection economically impractical due to high per-stop costs.
Question 4: What does 'payload' mean in the context of recycling collection vehicle efficiency?
- The total weight of recyclables a collection vehicle carries per trip (Correct answer)
- The fuel capacity of the collection truck
- The number of stops per route
- The number of workers per vehicle
Correct answer: The total weight of recyclables a collection vehicle carries per trip
Payload is the actual weight of collected material per trip; maximizing payload per route mile is a key efficiency metric for managing collection costs.
Question 5: Which type of recycling collection vehicle is most commonly used in automated curbside programs?
- Side-loader trucks with mechanical arms that lift standardized carts (Correct answer)
- Rear-loader packer trucks requiring manual loading
- Open-bed flatbed trucks
- Vacuum collection vehicles
Correct answer: Side-loader trucks with mechanical arms that lift standardized carts
Automated side-loaders use hydraulic arms to lift and empty standardized carts, reducing labor costs and worker injury risks compared to manual collection.
Question 6: What is a 'transfer station' in recycling and waste logistics?
- A facility where collected materials are consolidated before transport to a MRF or disposal facility (Correct answer)
- A processing facility that sorts recyclables by type
- A vehicle fueling depot for collection trucks
- A government permit office for recycling businesses
Correct answer: A facility where collected materials are consolidated before transport to a MRF or disposal facility
Transfer stations consolidate smaller loads from collection trucks into larger transport vehicles, reducing overall haul costs when the MRF is far from collection areas.
CRP Collection Systems Design & Logistics 1
What is the primary advantage of single-stream recycling collection over dual-stream?