It would have been used as a defensive structure as well as a means controlling trade along Roman roads that cross the dyke, including the Devil's Dyke, Fleam Dyke and Brent Ditch.
It would have been used as a defensive structure as well as a means controlling trade along Roman roads. This means. Controlling trade along Roman roads cross the dyke. This is including the Devil's Dyke. The Devil's Dyke is Fleam Dyke. The Devil's Dyke is Brent Ditch.