ascensi

Staircases that gave gave access to the rampart walk on the vallum (ascensi valli) from the interior of the fort or intervallum, notably in the immediate area of the gates, though usually found at regular intervals around the defences. Unless in a temporary tactical encampment where they were of turf, ascensi were usually of wooden construction, so…...
Found on http://www.encyclo.co.uk/visitor-contributions.php

ascensi

staircases These gave access to the rampart walk on the vallum (ascensi valli) from the interior of the fort or intervallum, notably in the immediate area of the gates, though usually found at regular intervals around the defences. Unless in a temporary tactical encampment where they were of turf, ascensi were usually of wooden construction, someti...
Found on http://www.roman-britain.org/military/military_glossary.htm
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