HHSRS 06/06

26 (IDeA - 3)

June 2006

and entrapment

Persons aged under 5 years

Falling on level surfaces etc /

Falling between levels/ Fire

Yes

Yes

No

No

Collision

Vulnerable age

Related hazards

Multiple locations

Secondary hazards

DESCRIPTION OF HAZARDS

DWELLING:

Second floor flat in a purpose built block

constructed in 1967

Background: The block of flats is currently leased to house students. There are four storeys with 16 flats on

each floor. As part of the structural fire precautions, there is an alternative means of escape from the third

and second floor which is through a shared kitchen located on each floor. The route takes the student out

onto a asphalt covered flat roof located over the first floor and eventually leads to a waiting area at the end.

There are metal framed perspex and glass roof lights along the route, rain water discharges onto the flat roof

from the main roof above and ponds on the escape route; there is no direct external illumination The barrier

at the waiting point is a wall approximately 1100mm high.

LIST OF RELEVANT MATTERS

LIKELIHOOD & OUTCOMES

A

a

Door design and defects

-

b

Disrepair to doors

-

c

Door closer defects

-

d

Door location

-

e

Window design defects

-

f

Disrepair to windows

-

g

Window location

-

h

Non-safety glass

-

i

Unprotected gaps

3

j

Low headroom to doors

-

k

Low beams and ceilings

-

Secondary Hazards

a

Roof light structures

b

Slippy and uneven roof surface

c

Absence of adequate lighting

# Compounding matters

None

A

-

A

3

3

3

B

-

Key

3

Seriously defective

2

Defective

1

Not satisfactory

-

Satisfactory/NA

26 (IDeA - 3)

June 2006

HEALTH AND SAFETY RATING SYSTEM SCORES

LIKELIHOOD

Low

High

1 in 6

Av 1946-79 Flat: 43

6

< 4200 2400 1300 750 420 240 130

75

42

24

13

7.5

4

2.5

1.5 >

Justification

The area is permanently available as a secondary fire exit. This allows use of the area as

an outdoor space and balcony and there are numerous low level features. As a route of

escape in case of fire, when people will move quickly, a collision with a roof light is highly

likely. At night the likelihood will be even greater as the area is inadequately illuminated.

In addition, the poor drainage means that in wet weather there will be an increase in the

likelihood of a slip and a collision that could cause harm given the form of construction of

the features.

OUTCOMES

%

Av 1946-79: 0.0

Class I

0

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 0.1

Class II

0.5

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 4.0

Class III

10

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Av: 95.9

Class IV

89.5

< 0.05 0.15 0.3

0.7

1.5

3

7

15

26

38 >

Justification

Most collision and entrapment injuries are from trapped fingers or limbs in doors and

windows. The multiplicity of sharp edges and the possibility of a collision being followed by

a fall through (or partly through) the roof lights causing further injuries justify increasing the

Class II and Class III harms.

Av. 1946-79 Flats: 53

RATING

A

B

C

D

E

F

G

H

I

J

Score:

733

RATING SCORES AFTER IMPROVEMENT

IMPROVE

Likelihood to

1 in

56

Outcomes to

0

0.1

4.6 95.3

%

Justification

Provision of guardrails to direct people to a place of safety and keep them clear of

obstructions, improved illumination of the route, and improved drainage to the roof to

prevent the ponding of rainwater, would reduce the likelihood and harms to nearer

average.

Av: 53

NEW RATING

A

B

C

D

E

F

G

H

I

J

Score:

43

Av: Nos

Average likelihood and health outcomes for persons aged under 5 years, 1997-99.