Question 1. (10 points) In early spring 2021, a team of health care innovators, operational leaders, and information technology experts met in Denver, Colorado. The goal is to create a new model for drive-through vaccination sites capable vaccinating 10,000 people in two days. The process designed by the team consists of the following four steps: 1. Appointment verification. Upon arrival to the vaccination site, cars are directed to one of 6 lames. In each lane, a line attendant verifies appointments and hands out welcome packets. This greeting stage takes an average of 20 seconds. II. Registration. At the end of each lane, there are 3 staff members checking the patients in. (The total number of registration stations is therefore 18.) On average, the registration process takes 1 minute and 30 seconds. III. Vaccination. After registration, ears are directed into one of 16 vaccination tents. Each tent has a team of two vaccinators, and it takes an average of 1 minute and 30 seconds to administer the vaccine. IV. Observation. Once vaccination is completed, patients are directed to the observation site, where they will wait for 15 minutes before being discharged. There are a total of 505 parking spots available. "This question is adapted from Remick-Ault, D., Wendel, S.K., Skaggs, M.D., White, S. and Zane, B.D., 2021. "Drive-Through Eiciency: How to Prepare for and Execute a Man-Vaccination Event." NEJM Catalyst Innovations in Care Delivery, 2(2), and the case "Cold-19 Ma Vaccination Site developed by Proda Fernanda Bras and Prancisco Castro at UCLA. 1 (a) (4 points) Which one of the four steps is the bottleneck, and how many patients can this site vaccinate in each hour? (b) (2 points) The vaccination site planned to operate from 8am to 2pm each day. What is the demand rate (ie. patients to vaccinate per hour), if 5,000 patients need to be vaccinated per day? (c) (2 points) The team is considering adding one volunteer to each of the 16 vaccination tents to help with screening questions, vaccination supplies, and paperwork. This reduces the time each car spends at the vaccination tent from 1.5 minutes to 1 minute. What would be the new capacity of the process? (d) (2 points) Assume that the change in (c) is implemented. Which step is the new bottleneck, and what would you do to meet the demand of 5,000 patients per day?