Exam 8: Supplement: Job Scheduling and Vehicle Routing and Material Flow Analysis and Facility Layouts

The process design team at a medical device manufacturer has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 8 productive hours available in a day, and the manufacturer wishes to produce 400 units. -What should their takt time be?

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes. -Determine the delivery schedule of Vehicle 3.

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes. -Determine the finish time for Vehicle 3.

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete. -Using the processing order as per the earliest due date (EDD), determine the average tardiness.

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1. -Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 2 and 5.

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5. -For the paired combinations of delivery nodes 1, 2 and 5, calculate the savings.

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. -Based on the savings computed for the paired combinations, which one represents the most acceptable delivery route for the network of customers?

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line: -Operations managers design a line that contains 5 stations. What is the percentage of idle time?

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line: -What should their takt time be?

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes. -Determine the number of delivery vehicles needed.

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line: -Assuming 1 work center per task, what is the minimum takt time?

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes. -Determine the delivery schedule of Vehicle 2.

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes. -Determine the number of delivery vehicles needed.