Transcript Proactive job risk assessment in construction sector Author: dr.ing.Ioan Mina Sava S.C.Oltchim S.A 11/7/2015 (c) dr.ing.Ioan Mina Sava.

Proactive job risk
assessment in
construction
sector
Author: dr.ing.Ioan Mina Sava
S.C.Oltchim S.A
11/7/2015
(c) dr.ing.Ioan Mina Sava
1
Job in construction sector
Cost Against
Risk:
Time
Money
Effort
People?
Resources?
Management?
Organizers?
Training?
Acceptability of
residual risk
Work security in
Construction
sector
11/7/2015
(c) dr.ing.Ioan Mina Sava
2
Job / Task risk assessment
ERSM (Job / Task risk assessment method) is a
proactive task assessment method, its aim is
diminution of risks severity
 ERSM is applicable for the first time tasks or in
insufficient instructions or procedure situations
 ERSM is applicable for known tasks in other
locations, work place or work environment
conditions situate
Job is a multitasking activity
Managers and supervisors have responsibility of task
risk assessment & ERSM execution

11/7/2015
(c) dr.ing.Ioan Mina Sava
3
What is doing before job / task start ?



Knowing hazards and risk factors task related
Knowing hazards and risk factors with accident / incident
causes related
Knowing risk factors of human factor related (What kind of
people are working ? )

Who & What is Harmed & How

Knowing material and managerial resources for risks
domination
Proactive risk assessment
Assess managerial attitude vs. residual risk
Start job / task decision



11/7/2015
(c) dr.ing.Ioan Mina Sava
4
PROACTIVE RISK ASSESSMENT
Hazard source
Hazard recognition
Immediate action
on risk factors
No
acceptable
Substantial
& Intolerable
Who&What is
Harmed How
Control, domination
measures
Yes
Severity of Consequence
Job safety
Analysis
N/A
11/7/2015
End
Risk factor’s
hierarchy
Efect of hazards
Residual risk
assessment
Yes
No
acceptable
(c) dr.ing.Ioan Mina Sava
Perform the task
5
Hazard sources
Hazard sources
Hazards / risks
People
Employees
Personnel
1.New employees or inexperienced 2.Vizitators or unauthorized
personnel 3. Inadequate communication 4. Insufficient number of
employees 5.Competence
Technical equipment
Constructions
Tools
1.Platform ,scaffold, ladders 2. Incorrect machines and tools use
3.Stability & collapse of equipment 4. Maintenance 5. Equipment
failure 6. Damage / faulty equipment
Dangerous materials
1.Hazardous substances 2. Toxic 3. Flammable 4. Explosive
5.Dimension / weight 6. Waste
Working environment
1.Confined spaces 2. Working at Heights 3. Noise 4.Temperature
5. Lighting 6.Ventilation 7. Weather
Procesees
Technology
11/7/2015
1.Emergency arrangements 2.Incorrect procedure process
3. Inadequate OH&S system 4. Inadequate planning 5. Lack of
Training 6. Lack of Information /instruction /supervision
(c) dr.ing.Ioan Mina Sava
6
Focus on hazards






Mechanical : Moving parts // Sharp edges // Slippery
surfaces // Cuts // Abrasions // Falling objects // Vehicles
Substances: Toxic // Corrosive // Irritant // Harmful //
Flammable // Oxidising // Explosive // Biological //
Carcinogenic
Energies : Electricity // Radiation // Light // Noise // Vibration
// Pressure // Thermal (hot – cold)
Sources of harm access: Entanglement // Heights //
Restrictions // Confinement // Ventilation
Sources of harm tasks: Repetition // Climbing // Lifting //
Manual Handling
Work in open air : Weather
11/7/2015
(c) dr.ing.Ioan Mina Sava
7
Risk factor’s hierarchy matrix
Severity of risk factors action
Slightly harmful
Harmful
Extremely
Harmful
Highly unlikely Trivial Risk
Tolerable Risk
Moderate Risk
Unlikely
Tolerable Risk
Moderate Risk
Substantial
Risk
Likely
Moderate Risk
Substantial
Risk
Intolerable Risk
Probability
11/7/2015
(c) dr.ing.Ioan Mina Sava
8
Risk factor’s matrix control plan
RISK FACTORS
ACTION AND TIMESCALE
TRIVIAL
No action is required and no documentary records need to be kept.
TOLERABLE
No additional controls are required. Consideration may be given to a
amore cost-effective solution or improvement that imposes no additional
cost burden. Monitoring is required to ensure that the controls are
maintained.
MODERATE
Efforts should be made to reduce the risk, but the costs of prevention
should be carefully measured and limited. Risk reduction measures
should be implemented within a defined time period.
Where the moderate risk is associated with extremely harmful
consequences, further assessment may be necessary to establish more
precisely the likelihood of harm as a basis for determining the need for
improved control measures.
SUBSTANTIAL
Work should not be started until the risk has been reduced. Considerable
resources may have to be allocated to reduce the risk. Where the risk
involves work in progress, urgent action should be taken.
INTOLERABLE
Work should not be started or continued until the risk has been reduced.
It it is not possible to reduce risk even with unlimited resources, work has
to remain prohibited.
11/7/2015
(c) dr.ing.Ioan Mina Sava
9
Gravity of consequences




Personnel which is harmed (accident)
Propriety damage & losses
Environment Impact
Reputation fail of organization
Gravity of consequences are on five severity degrees
11/7/2015
(c) dr.ing.Ioan Mina Sava
10
What is affected ?
1. People affected
Slips, trips and falls
 Dangerous substances exposure
(toxic, carcinogen, irritant ,corrosive)
 Noise exposure
 Hypothermia
 Fire
 Explosion, autoignition
 Shock
 Struck by objects
 Entanglement
 Impact
 Crush, cuts / abrasions
 Electrocution
 Asphixia
 Dawning
 Stress
 Pollution
 Contamination
 Financial liability

2. Environment impact
3. Equipment & propriety damage
4. Reputation affected of organization
11/7/2015
How is affected?
(c) dr.ing.Ioan Mina Sava
11
Who & What is Harmed & How
•Who
Susceptible Groups:
-Person performing job / task
-Group of workforce
-Contractor
-Public
•What
-part of body
•How
-Accident
-Exposure
-Repetition
11/7/2015
(c) dr.ing.Ioan Mina Sava
12
Residual risk level evaluation matrix
Severity
Severity criteria
Probability for potential incidents
Very
Unlikely
But
possible
1 pct.
Unlikely
Though
conceivable
2 pct.
Likely but
not
surprising
4 pct.
Very likely
No dubt
5 pct.
3
LS
4
LS
5
LS
4
LS
6
LS
8
MS
10
MS
3
LS
6
LS
9
MS
12
MS
15
HS
4
Continental
4
LS
8
MS
12
MS
16
HS
20
HS
5
International
5
LS
10
MS
15
HS
20
HS
25
HS
Personel
Damage of
Goods or
losses
Reputation
1.
First aid
1
Slight
below 200$
1
Local
1
LS
2
LS
2.
Medical
treatment
2.
Minor
below 1000$
2.
Regional
2
LS
3.
Work days
losses
3.
Medium
below 5000$
3
National
4.
Invalidity
or
weakness
4.
Major
below 25000$
5
Death
5.
Extensive
25000$
11/7/2015
(c) dr.ing.Ioan Mina Sava
Possible
but
unusual
3 pct.
13
Attitude for potential incident severity
LS
May be acceptable ; however review task to see if risk can be
reduced further
Low severity
MS
Medium severity
HS
High severity
11/7/2015
Job should only proceed with appropriate management
authorization after consultation with specialist personnel and
assessment team. Where possible the job should be redefined to
take account of the hazards involved or the risk should be
reduced further prior starting the job
Job must no proceed. It should be redefined or further control
measures put in place to reduce the risk. The controls should be
reassessed for adequacy prior to starting the job
(c) dr.ing.Ioan Mina Sava
14
Authority to proceed the job
LS
Low severity
1-6
MS
Medium
severity
7-14
HS
High severity
15-25
11/7/2015
Personnel
with competency and skills to perform the job
have the authority to proceed after verbally discussing the
job requirements with anyone performing the job with them
The
job should only proceed with appropriate management
authorization after consultation with specialist personnel
and assessment team. Where possible the job should be
redefined to take account of the hazards involved or the
risk should be reduced further prior starting the job
If applicable a Permit-to Work should be obtained in
accordance with practice rules.
Job must no proceed. It should be redefined or further
control measures put in place to reduce the risk. The
controls should be reassessed for adequacy prior to
starting the job
(c) dr.ing.Ioan Mina Sava
15
Hierarchy of control measures
7. Special Procedures
Permit to work
Special training
Order
6. Personal protective
equipment appropriate & sufficient
4. Segregation . Distance/barriers/guards be
used to prevent personnel exposure to hazard?
3. Engeneering controls. Can equipment be used to reduce
the risk?
2.Substitution. can something else be used to reduce the risk?
Control measures
5.Reduction in personnel time exposure
1.Elimination. Does the task need to be done in this mode?
Risk
11/7/2015
(c) dr.ing.Ioan Mina Sava
16
Thank you for attendance
Contact:
Dr.ing.Ioan Mina Sava
Mail to: [email protected] [email protected]
Web: www.radusava.home.ro
Phone: +40 7440560170
11/7/2015
(c) dr.ing.Ioan Mina Sava
17