Even if you do not expect all of your users to request content at the same time, it is important to allow for peaks in usage. You should take into account user connection speeds as well because they may differ greatly.
To estimate your audience volume, determine the highest number of concurrent users during a streaming event. For example, a company plans to offer online training to all of its 10,000 employees over the local area network (LAN). Past training performance indicates that a maximum of five percent of the employees are likely to access the training at any given time. Therefore, the network must be capable of reliably delivering the content to 500 concurrent users.