1) Having a series of arches 2) Like some courtyards 3) Like some formal entrances 
• (a.) Furnished with an arcade.
Ar·cad'ed adjective Furnished with an arcade. 
arcaded 1. Decorated with an arcade: 'Our apartment has an arcaded entryway.' 2. Housed in an arcade: 'Our town finally has its own arcaded shops.'
decorated with an arcade: an arcaded entryway. · housed in an arcade: arcaded shops.