Single virtual queuesĪ single queue is the most straightforward type of queue, whether physical or virtual. Each queuing system has its pros and cons and can be useful for specific situations. At the most basic level, a single queue funnels each customer into the same virtual line, whereas multiple queues translate to multiple lines, usually for different goods or services. Setting up a virtual queuing system is vital to ensuring a safe and frictionless experience for customers. Retailers that had not previously needed to employ virtual queues now need more seamless ways to meter the flow of customers into stores, while guaranteeing customers a safer and less stressful experience. For scale, it’s important to note that in April 2020, Walmart restricted in-store customer capacity to just 20 percent of usual traffic to guarantee customers a safer shopping experience. With restrictions on footfall, and a need for social distancing, retailers are being driven to find new solutions to manage walk-in traffic, while delivering safe and exemplary service. This process is experimental and the keywords may be updated as the learning algorithm improves.The virtual queue is not a new concept: for years, businesses like banks, restaurants, and telecommunications retailers have used virtual queuing systems to help their customers avoid the tedium of waiting in a physical line.ĭuring the pandemic, virtual queues have taken on a new importance. These keywords were added by machine and not by the authors. Arriving customers are immediately directed (in order of their appearance) into arbitrary free channels if they are not all busy, or wait until they can proceed into some channel which has become free. The service of the n-th group of requests of size v s n (or of smaller size if the number of customers waiting for service turns out to be insufficient) requires τ s n time units. Service occurs also in groups and can be performed in m channels simultaneously. Customers arrive in groups of sizes v e 1, v e 2, …, with interarrival times τ e 1, τ e 2, …. Assume we are given the governing sequences (1), §1. We have agreed to denote such systems by the symbol ‹ G/ m› (see § 1). We recall the definition of queueing systems with m ≥ 1 channels.
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