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EGRESS
MOE
Design of Exits
One-Way ,Two Way Distances
Gross vs Net Area
Exit Arrangement
Definitions
 
 
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Hotels,Resorts
Officies,Libraries
Factories,Industril Plants
Shops,Supermarkets
Hospitals
Schools,Universities
 
 
 
 
 
 
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DESIGN OF EXIT SYSTEMS
 
 
1-Occupancy classification of building &Calculate Occupancy Load
 
TABLE 1 - OCCUPANCY LOADS
No
,Usage
m2/pp
Area Type
1
Assembly Halls,Concert Halls,Restaurants,Cinema ,Theatre
1,5
Net
2 Night Club ,Dance Hall ,Bar 0,5 Net
3 Exhibitoan Halls ,Record Studios 1,5 Net
4 Terminal Passenger Halls 3 Net
5 Class,Computer Rooms , Meeting rooms 1,5 Gross
6 Reseption areas,Waiting Rooms ,Atrium Floors 3 Gross
7 İndoor Sport Areas 3 Gross
8 Supermarkets ,Markets,Shops 5 Gross
9 Art Galleries,Museums ,Workshops 5
Gross
10 Fitness ,Aerobic Halls 5
Gross
11 Officies,Public Libraries 10
Gross
12 Dormitories 10
Gross
13 Manufactoring ,Packet areas 10
Gross
14 Hospital Patient Rooms -Details 10
Gross
   
15 Kitchens,Washing Rooms 10
Gross
16 Hotel Rooms 20
Gross
15 Gross floor area of each room (including other areas such as living area, toilet, etc)
17 Hospital Labs ,Pharmacies 20
Gross
18 Doctor rooms ,Student Lab 5
Gross
19 Warehouses ,Mechanical Rooms 30
Gross
20 Car Park Areas 30
Gross
       
1.1-Wall betwwen guestrooms and corridor must have min 1 hr fire rate.
1.2-Guestrooms doors opening to corridor must have min 0.5 hr fire rate.
1.3-If guestroom beds more than 20 or number of guest floors more than 2 ,there must be min two exits
 
2 - EXIT REQUIREMENT
 
TABLE 2 - EXIT REQUIREMENTS
Occupancy Type
Maximum Travel Distance (m) Number of Persons Per Unit Width .(50 cm) Minumum Width (m) Max. Dead End (m)
One- way Two-way Door Openings Staircases Corridors &Ramps Stairs Corridors Corridors
Non Sprinklered
Sprinklered
Non Sprinklered
Sprinklered
Exit to Outdoor Other Exits &Corridor Doors Non-Sprinklered Sprinklered
High Hazard
10
20
20
35 50 40 30 50 1 1.2 10 20
Industrial Buildings (Factories ,warehouses)
15
25
30
60 100 80 60 100 1 1,2 15 20
15
25
45
60 100 80 60 100 1 1.2 15 20
15
30
45
75 100 80 60 100 1 1.2 15 20
Carparks 15 25 45 60 100 80 60 100 1 1.2 15 20
Assembly Buildings.Cinemas,Meeting rooms ,Restaurants 15 25 45 60 100 80 60 100 1 1.2 15 20
Schools ,Educational Buildings 15 25 45 60 100 80 60 100 1 1.5 15 20
Hospitals ,Healthcare facilitiy 15 25 30 60 30 80 15 30 1 2 15 20
Hotels,Hostels,Dormitories 15 20 30 60 60 60 45 50 1 1.2 15 20
Apartmants 15 30 30 75 50 40 30 50 1 1.2 15 20
Apartmants (External Corridor ) 20 40 45 75 50 40 30 50 1 1.2 15 20
                         
                         
 
2.1-Maximum travel distance to at least one exit shall not exceed the travel distance allowed to reach an exit for two ways.
Hint:There is no limit on the other exit route.
 
 
 
TABLE 3-Doors ,Corridors ,Stairs
 
No. of Occupants
Min. No of Doors
Type of Door

Min. Width of Corridor

mm

Min. Width of Stairs

mm

1-50
1
Swing to İnside or Outside
1100
1100
51-100
2
Swing to Outside
1100
1100
101-500
2
Swing to Outside &Panic Bar
1100
1100
501-1000
3
Swing to Outside &Panic Bar
1500
1100
1001-2000
4
Swing to Outside &Panic Bar
2000
1100
More than 2001
4
Swing to Outside &Panic Bar
2000
1100
For Hospitals Min Width of Corridor is 2mt
 
 
Where a room or space is required to be provided with two exits,
3.1- In buildings equipped throughout with automatic sprinkler protection, exit doors in each room should be separated by at least 1/3 of the diagonal dimension of the room. In other words, if the room has two doors but they are very close to each other, it only counts as one door and the maximum occupant load would still be limited to 50 or fewer. In buildings without automatic sprinklerprotection, the doors must be separated by at least a 1/2 the diagonal dimension of the room .
3.2-At least one of the exits must be in travel distance limits
3.3-Each exit shall be of sufficient width to accommodate not less than half the total occupant load.
3.4-Such exits shall be remotely located from each other and shall be arranged and constructed to minimise the possibility that more than one can be blocked by any fire or other emergency condition.
 
4
4.1-Exit doors should lead to a corridor, an exit stair enclosure, or directly to the exterior of the building

Auditorium where people exit through a lobby, egress through an adjacent room (the lobby) will be acceptable.

 
4.2-Exits should not pass through
Adjacent rooms
Kitchens
Storage room
Folding Partition. (Doors in operable partitions are not considered exits).
Toilettes
Revolving doors
Elavators
Escaltors
Roller shutters
Sliding Doors
 
4-3-Distance between doors (exits) .
With automatic sprinkler protection, exit doors in each room should be separated by at least 1/3 of the diagonal dimension of the room
Without automatic sprinkler protection, exit doors in each room should be separated by at least 1/2 of the diagonal dimension of the room
Sample: For a room of 50m x50m ,diagonal distance is 70 mt.
Min.Distance between doors must be for sprinklered building =70*(1/3) =23 mt for unsprinklered building is=70*(1/2) 35 mt .
 
Exits shall be remotely located from each other and shall be arranged and constructed to minimise the possibility that more than one can be blocked by any fire or other emergency condition
More About Exit or Exit Access Doorway Arrangement.

 

 
 
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