You're probably thinking of a pergola. no, this starts with a port and 4 more letters
Could be an arcade, cloister, gallery, loggia, mall, piazza or portico,
cloister
An old covered walkway is called a stoa from Greek architecture.
A promenade?
Cloister
This is known as a COMMON AREA WALKWAY
The walkway to a front door is called an entryway. It is called an entry way is because that is how you enter the property.
Usually the walkway in Anglican Church would be known as the nave
A shaded walkway is sometimes called an alameda. The definition of an alameda is a public walkway which is bordered with trees.
promenade
The main walkway at a fair is typically called the "midway." It is the central area where all the rides, games, and food booths are located.
The midway
Jet bridge
The Midway, if I remember right.