a developer's approach towards safer lifting operation

A DEVELOPER’S APPROACH TOWARDSSAFER LIFTING OPERATIONCRANE SAFETY SYMPOSIUM29 th October 2013Andrew Tan Hock SengLTA Safety DivisionTOWARDS "ZERO ACCIDENT” 1

PRESENTATION OUTLINE1) Introduction to LTA projects2) Lifting operation statistics3) Managing safe lifting operation4) Good practices among LTA contractors5) SummaryTOWARDS "ZERO ACCIDENT”2

Introduction to LTA ProjectsTOWARDS "ZERO ACCIDENT” 3

LAND TRANSPORT MASTER PLAN 2013North SouthExpresswayMarina CoastalExpresswaySentosaGatewayTOWARDS "ZERO ACCIDENT”4

COMPLEXITY OF PROJECTSTOWARDS "ZERO ACCIDENT”5

KEY WSH CONCERNSLIFTING OPERATIONWORKING NEARHEAVY MACHINERYFALL FROM HEIGHTSFALLING OBJECTSMANUALHANDLINGCONFINEDSPACES

Lifting Operation StatisticsTOWARDS "ZERO ACCIDENT” 7

PAST CASES‣ DO due to Equipment Failure13 th May 2000Cause• Faulty limit switchesTOWARDS "ZERO ACCIDENT”9

PAST CASES‣ DO due to Human Related Errors26 th Oct 1999Causes• Inadequate supervision• Inadequate assessment ofload to be lifted• Inability to comprehend dangerTOWARDS "ZERO ACCIDENT”10

Managing Safe Lifting OperationTOWARDS "ZERO ACCIDENT” 11

MANAGING SAFE LIFTING OPERATIONContractor shall comply with allSHE requirements spelled in thisspecifications and supportingdocuments, even if it presents ahigher standard than thatrequired by Singaporelegislation.TOWARDS "ZERO ACCIDENT”12

MANAGING SAFE LIFTING OPERATIONA typical organisation chart incompliance with LTA LiftingOperation StandardsProject ManagerWSHOCraneMaintenanceSupervisorLifting EngineerLifting Supervisor1Lifting Supervisor2Lifting Supervisor3Lifting Supervisor4Routine lifting activitiesRoutine lifting activitiesSpecial lifting activitiesSpecial lifting activitiesTeam 1Team 2Team 3Team 4CraneOperatorCraneOperatorCraneOperatorCraneOperatorRigger /SignalmanRigger /SignalmanRigger /SignalmanRigger /SignalmanRigger /SignalmanRigger /SignalmanRigger /SignalmanRigger /SignalmanFor each team : at least 1 additional worker to assist signalman for lifting activities carried out near public areasTOWARDS "ZERO ACCIDENT”13

MANAGING SAFE LIFTING OPERATION‣ Addressing Human RelatedErrors• Appointment of a LiftingEngineer• Comprehensive : Pre-planning Method statements Risk assessments• Permit-To-Work systemTOWARDS "ZERO ACCIDENT”14

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Approved Lifting PlanFactor of Safety : 89 tonnes/69.8 tonnes = 1.28TOWARDS "ZERO ACCIDENT”15

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Bypass switches to be lockedUnsecured bypass switchesBypass switches lockedto prevent tamperingTOWARDS "ZERO ACCIDENT”16

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related ErrorsOperator Cabin (Forward position, 0)Other uncoloured region (CraneOperator has no view at all !)Green region (Crane Operator has clear view)Dark Green region (Crane Operator has limited view)TOWARDS "ZERO ACCIDENT”17

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related ErrorsOperator Cabin (Slewed, 20)Other uncoloured region (CraneOperator has no view at all !)Green region (Crane Operator hasclear view)Dark Green region (CraneOperator has limited view)TOWARDS "ZERO ACCIDENT”18

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related ErrorsOperator Cabin (Slewed, 40)Line of sight already blockedby crawler trackTOWARDS "ZERO ACCIDENT”19

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related ErrorsOperator Cabin (Slewed, 60)TOWARDS "ZERO ACCIDENT”20

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related ErrorsOperator Cabin (Slewed, 90)TOWARDS "ZERO ACCIDENT”21

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Appointment of competent lifting team Crane Operator with minimum 5 years experience• Strict supervision of all lifting operationsTOWARDS "ZERO ACCIDENT”22

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Cordoning of work zone and warning signsTOWARDS "ZERO ACCIDENT”23

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Rear View Camera installed on lifting machines toprovide a clear view of the rearTOWARDS "ZERO ACCIDENT”24

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Safety Devices & Equipment“Secondary Warning Devices”TOWARDS "ZERO ACCIDENT” 25

MANAGING SAFE LIFTING OPERATION‣ Addressing Human Related Errors• Provision of firm footing (timber planks prohibited)TOWARDS "ZERO ACCIDENT”26

MANAGING SAFE LIFTING OPERATION‣ Addressing Equipment Failure• Lifting machines which areassembled on-site or afteralteration to be examined by AEbefore actual usage• All lifting machines, lifting gears andlifting appliances to be examined byAuthorised Examiner at least onceevery 6 months• Lifting machines should not be morethan 15 years old from date ofmanufactureTOWARDS "ZERO ACCIDENT”27

MANAGING SAFE LIFTING OPERATION‣ Addressing Equipment Failure• SWL of auxiliary block to be statedon Lifting Equipment certificate• Special permission from LTA for useof crane with flyjib• Weekly submission of keyinformation for cranes deployed onsiteto LTA• Lorry loaders only allowed forloading/unloading activities, notinstallationTOWARDS "ZERO ACCIDENT”28

MANAGING SAFE LIFTING OPERATION‣ Addressing Equipment Failure• Comprehensive maintenance regime- Appointment of competent Crane Maintenance Supervisor- Periodic inspections- Scheduled / Manufacturer’s Recommended ServicingTOWARDS "ZERO ACCIDENT”29

MANAGING SAFE LIFTING OPERATION‣ Regular WSH Programs : Thematic Exercise• Documentation• Interview / competency assessment• Check on crane functionsTOWARDS "ZERO ACCIDENT”30

MANAGING SAFE LIFTING OPERATION‣ Regular WSH Programs : Engaging our contractors• 6 monthly senior management dialogue sessions• Contractors Safety ForumsTOWARDS "ZERO ACCIDENT”31

MANAGING SAFE LIFTING OPERATION‣ Regular WSH Programs : EnforcementWSH inspections with ContractorsSite audit of Permit to Work systemsSafety ObservationsSite audit of method statementimplementationTOWARDS "ZERO ACCIDENT”32

MANAGING SAFE LIFTING OPERATION‣ Regular WSH Programs : Education / PromotingAwareness• In-house publications• Training sessions• Zero Accident Movement training packagesTOWARDS "ZERO ACCIDENT”33

Good Practices among LTA ContractorsTOWARDS "ZERO ACCIDENT” 34

GOOD PRACTICES‣ Lifting MentorsObjective• Prevent miscommunication or misunderstandingbetween lifting team and operators• Share experience & knowhow with relevant staffAppointment• 3 persons (Chinese, Indian, Bangladeshi) out ofqualified lifting supervisors of all subcontractors• Appointed by main contractor through interviewBangladeshiChineseRole• Regular training for each group• Interpretation at lifting location as and when requiredIndianTOWARDS "ZERO ACCIDENT”35

GOOD PRACTICES‣ Competency testing and interviews of lifting teamTOWARDS "ZERO ACCIDENT”36

GOOD PRACTICES‣ Pre-lifting SWP and RA BriefingTOWARDS "ZERO ACCIDENT”37

GOOD PRACTICES‣ Regular Safety Briefings• For workers working near lifting operationsTOWARDS "ZERO ACCIDENT”38

GOOD PRACTICES‣ Standard Operation Procedures in Pictorial FormTOWARDS "ZERO ACCIDENT”39

GOOD PRACTICES‣ 3 rd Party Audit• Specialist from local/overseas to test and train lifting crewTOWARDS "ZERO ACCIDENT”40

GOOD PRACTICES‣ 3 rd Party Audit• Non-destructive tests (NDT) to identify metal fatigueTOWARDS "ZERO ACCIDENT”41

GOOD PRACTICES‣ Weekly Boom-Down InspectionsTOWARDS "ZERO ACCIDENT”42

GOOD PRACTICES‣ Illumination of Lifting Blocks• Improve visibility for night works to prevent collisionMain BlockAuxiliary BlockTOWARDS "ZERO ACCIDENT”43

GOOD PRACTICES‣ Regular Inspection of Lifting Gears• Checks for deformation/elongation of chain links usingmeasuring tape and vernier callipersTOWARDS "ZERO ACCIDENT”44

SummaryTOWARDS "ZERO ACCIDENT” 45

WHY DO ACCIDENTS STILL OCCUR ?CULTURECOMPETENCYCOMMUNICATIONPROCESSESPOLICIESTOWARDS "ZERO ACCIDENT”46

LTA’S LEADING REQUIREMENTS‣ BBS• Pilot trial• Training• DatabaseTOWARDS "ZERO ACCIDENT”47

LTA’S LEADING REQUIREMENTS‣ Data Logger• To record key information for every lifting operation• Download and interpret data on a monthly basisTOWARDS "ZERO ACCIDENT”48

CONCLUSION• LTA’s Zero AccidentMovement waslaunched in 2012• LTA’s vigilance isupheld by fine-tuningexisting measures andimplementing newstrategies• LTA’s lifting operationspecifications tostrengthen cranesafety at the workplaceTOWARDS "ZERO ACCIDENT”49

CONCLUSIONJourney To ......Thank YouTOWARDS "ZERO ACCIDENT”50