The Velocity chart shows us what is the average delivery capacity of the team per unit of time and whether the team is delivering at a steady rate. It gives an empirical measurement of the quantity of work the team delivers per unit of time. It provides a trailing indicator of variation in the team's delivery performance. It also provides data points to create leading indicators to predict the length of time the team will need to complete a given scope or the amount of scope the team can deliver in a given length of time.