Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...

TEST #2 FOR ESCAPE ROUTE 2
TOTAL WALKING TIME (T = T1+T2+T3+T4+T5 )
m/min minutes
On Platform T1 25 m 60 0.42
Platform to Concourse T2 5 m 15 0.33
On Concourse T3 35 m 60 0.58
Concourse to Grade T4 8 m 15 0.53
On Grade to Safe Area T5 9 m 60 0.15
2.01
TOTAL EXIT TIME = T + Wp + Wf + Wc
= 2.01 + 2.44 + 0.00 + 0.00
= 4.45 minutes
TEST #2 FOR ESCAPE ROUTE 1
TOTAL WALKING TIME (T = T1+T2+T3+T4+T5 )
m/min minutes
On Platform T1 25 m 60 0.42
Platform to Concourse T2 5 m 15 0.33
On Concourse T3 35 m 60 0.58
Concourse to Grade T4 8 m 15 0.53
On Grade to Safe Area T5 9 m 60 0.15
2.01
TOTAL EXIT TIME = T + Wp + Wf + Wc
= 2.01 + 2.44 + 0.00 + 0.00
= 4.45 minutes
TEST #1
PLATFORM EXIT CAPACITY
= (240 + 180) p/min
= 420 p/min
TIME TO CLEAR PLATFORM (W1)
= Platform Occupant Load Platform Exit Capacity
= 1200 persons 420 p/min
= 2.86 minutes
EXIT CAPACITY
Escalator 2 nos. x 1.0 m x 60 p/m/min = 120 p/min
Stair 1 no. x 2.0 m x 60 p/m/min = 120 p/min
240 p/min
FLOW TIME
f = Persons Capacity = 514 240 = 2.14 minutes
EXIT CAPACITY
Escalator 2 nos. x 1.0 m x 60 p/m/min = 120 p/min
Stair 1 no. x 2.0 m x 60 p/m/min = 120 p/min
240 p/min
FLOW TIME
f = Persons Capacity = 686 240 = 2.86 minutes
WAITING TIME, Wc = (f - W1) = 2.14 - 2.86 = 0.00 minute
WAITING TIME, Wc = (f - W1) = 2.86 - 2.86 = 0.00 minute
ENTRANCE ESCALATORS AND STAIR
ENTRANCE ESCALATORS AND STAIR
EXIT CAPACITY
Fare gate 8 nos. x 50 p/min = 400 p/min
E. gate 1 no. x 1.0 m x 80 p/m/min = 80 p/min
480 p/min
FLOW TIME
f = Persons Capacity = 514 480 = 1.07 minutes
WAITING TIME, Wf = (f - W1) = 1.07 - 2.86 = 0.00 minute
EXIT CAPACITY
Fare gate 8 nos. x 50 p/min = 400 p/min
E. gate 1 no. x 1.0 m x 80 p/m/min = 80 p/min
480 p/min
FLOW TIME
f = Persons Capacity = 686 480 = 1.43 minutes
WAITING TIME, Wf = (f - W1) = 1.43 - 2.86 = 0.00 minute
Standard for Fire Safety in Rapid Transit Systems B-5
CONCOURSE FARE AND EMERGENCY GATES
CONCOURSE FARE AND EMERGENCY GATES
* One escalator is discounted
EXIT CAPACITY
Escalator* 1 no. x 1.0 m x 60 p/m/min = 60 p/min
Stair 1 no. x 2.0 m x 60 p/m/min = 120 p/min
180 p/min
WAITING TIME, Wp = (W1-T1) = 2.86 - 0.42 = 2.44 minutes
EXIT CAPACITY
Escalator* 2 no. x 1.0 m x 60 p/m/min = 120 p/min
Stair 1 no. x 2.0 m x 60 p/m/min = 120 p/min
240 p/min
WAITING TIME, Wp = (W1-T1) = 2.86 - 0.42 = 2.44 minutes
PLATFORM ESCALATORS AND STAIR
PLATFORM ESCALATORS AND STAIR
1200 x [ 180 ( 240 + 180 )] = 514 persons
Number of evacuees using Escape Route 2
1200 x [ 240 ( 240 + 180 )] = 686 persons
Number of evacuees using Escape Route 1
Platform Occupant Load = 1200 persons
FIGURE B-2.2 EXITING ANALYSIS