|
Max unimpeded flow speeds in element
|
$Speed (m/s)$
|
|
Corridor, aisle,ramp, doorway
|
1.19
|
|
Stairs
|
|
|
Riser
|
Tread
|
|
7.5
|
10
|
0.85
|
|
7
|
11
|
0.95
|
|
6.5
|
12
|
1
|
|
6.5
|
13
|
1.05
|
|
Element Specific k-values
|
$k (m/s)$
|
|
Corridor, aisle,ramp, doorway
|
1.4
|
|
Stairs
|
|
|
Riser
|
Tread
|
|
7.5
|
10
|
1
|
|
7
|
11
|
1.08
|
|
6.5
|
12
|
1.16
|
|
6.5
|
13
|
1.23
|
|
Max Specific flow rate
|
$f (ppl/s/m)$
|
|
Corridor, aisle,ramp, doorway (held open)
|
1.3
|
|
Stairs
|
|
|
Riser
|
Tread
|
|
7.5
|
10
|
0.94
|
|
7
|
11
|
1.01
|
|
6.5
|
12
|
1.09
|
|
6.5
|
13
|
1.16
|
Note: for non-held open doors, a maximum specific flow rate of $50ppl/min/leaf$ is recommended.
| Element boundary layers |
$Layer \; width (cm)$ |
| Stairway edge |
15 |
| Railings/Handrails |
98 |
| Theatre chairs, stadium benches |
0 |
| Corridor |
20 |
| Obstacles |
10 |
| Wide concourses |
<46 |
| Door, archway |
15 |