| The new frontier in Dacia was along the Brazda lui Novac line supported by new castra. |
| From then on many castra of various sizes were established many of which became permanent settlements. |
| The first Roman frontier in the north and west of the island was marked by watchtowers and military camps, or castra, along the Fosse Way. |
| The largest castra were legionary fortresses built as bases for one or more whole legions. |
| Previously, legions were raised for specific military campaigns and subsequently disbanded, requiring only temporary castra. |
| The standard suit of streets running through the castra is assumed, although some evidence exists for the via praetoria, via decumana and via sagularis. |
