Fig. 2

Proposed CCAs to be studied. Notes: (1) All dimensions presented are in meters. (2) For all CCAs, proposed building layouts’ area is 6400m², the area of the entrance lobby is 640 m², the total area of the circulation spaces is 640 m², and the corridor width is 4m. (3) All CCAs have been numbered serially from 1 to 59 (as presented below each CCA) and structured to have a code; this code contains 7 digits structured as (Xxa-bcd*); where (X) is a letter that denotes to the used BLS among the 8 proposed ones; (X) can be (S, R, R′, L, U, T, C or F) which denotes square, rectangle with an entrance on the longer side, rectangle with an entrance on the shorter side, L shape, U shape, triangle, and circle or finger plan, respectively; (x) is a letter that refers to one of two considered corridor types, either cul-de-sac (C) or looped (L). (a), (b), (c), and (d) are separated 1-digit numbers of branches, segments, nodes, and dead ends/exits, respectively. (*) is added only to differentiate the code if all previous features are the same. For example, Alt (TC0-624) refers to the CCA designed in a T-shaped building layout and with cul-de-sac corridors, no branches from the main corridor, 6 segments, 2, nodes and 4 dead ends/exits. Alt (TC0-624*) is another CCA with the same features