How many planes are on the runway at once? throughput rate: 15 planes/hourįlow time: 4 min 15 sec + 45 sec -> 5 minutes On average there are 15 planes taking of per hours. planes wait an average of 4 minutes and 15 seconds. How many buses are in the system at a time? (1 bus / 2 minutes) x 20 minutes = 10 buses time between plane takeoffs can be at least 3 minutes. inventory value days of supply the inverse of inventory turns scaled to days Every 2 minutes a bus departs from AVIS. How many customers in the store at any given time? 250 ppl/hour x (15/60 mins) - 62.5 customers inventory measures Total average value of inventoryĭays of supply Total average value of inventory the sum of the value (at cost) of the raw material, work-in process, and finished goods inventory inventory turn COGS / avg. Inventory = throughput rate x flow rate throughput rate long term average rate of flow through process flow time time for one unit to get through a process inventory material held by arm for future use 250 people/hour Workstation cycle time 96 correct seconds per unitĮfficiency 85.9 % Production process source, make, deliver lead time the time needed to respond to a customer order Customer order decoupling point inventory is positioned to allow entities in the supply chain to operate independently lean manufacturing a means of achieving high levels of customer service with minimal inventory investment production process mapping useful to understand how material flow and inventory is held little law flow of items through production process What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b? (Round your answer to 1 decimal place.) b. (Leave no cells blank - be certain to enter '0' wherever required.)ĭ.

Balance this line using the longest task time. What is the required workstation cycle time to meet the desired output rate? (Round your answer to the nearest whole number.)Ĭ. The following table contains information on this product's task times and precedence relationships:ī. Overtime 43 minutes ((1900-1800) x 26 sec) = 2600 sec / 60 sec = 43 minutes An assembly line is to operate eight hours per day with a desired output of 300 units per day. There are two options: reduce cycle time or work overtime. After production was started, Marketing realized that they understated demand and must increase output to 1,900 units. What is the efficiency of your line balance? (Round your answer to 1 decimal place.)ĭ. balance the line using the longest task time based on the 1,800-unit forecast, stating which tasks would be done in each workstation.Ĭ. The output requirement is 1,800 units per day.ī. The assembly line operates 13 hours per day. These are to be combined into workstations to create an assembly line. Some tasks and the order in which they must be performed according to their assembly requirements are shown in the following table.

Time's arrow time's cycle