Presentation on theme: "Construction Health and Safety"— Presentation transcript:
1Construction Health and Safety Radhlinah Kunju AhmadSource:Charles Ebbet, 1932
2Learning outcomeAt the end of the lecture, students should be able to:Understand the different types of existing hazards on siteComprehend the diferent types of accident measurement approachReflect on the Swedish construction accident recordsAppreciate the importance for improving health & safety in constructionUndertake the techniques of improving health & safety in constructionUnderstand the existing legislative frameworkUnderstand an accident analysis if required.
3Definitions Safety is free from risk and danger. Accidents is defined as an unexpected and desirable event resulting in damage or harm.Hazards is an unsafe condition or activity, that if left uncontrolled can contribute to an accident.Risk is the assessment of ’probability of loss’ and ’potential amount of loss’.(concise Oxford Dictionary)
4Common situation on a construction site Construction work is dynamic, diverse, and constantly changing in nature.Constantly changing job site environments and conditionsMultiple contractors and subcontractorsHigh turnover; unskilled laborersConstantly changing relationships with other work groupsDiversity of work activities occurring simultaneouslyConstruction workers are at risk of exposure to various hazards and risks that can result in injury, illness, permanent disability, or even death.
5ÅRETS VILDA VÄSTERNOmrådet från Sälen till Hemavan har förvandlats till rena vilda västern. Situationen är extrem inför kommande world cup-skidåkningen i Åre. Arbetsmiljön är ofta direkt livsfarlig när fritidshusen byggs. Det saknas skydd, personalutrymmen, med mera. I Hamra, Härjedalen, skadades två baltiska byggnadsarbetare då de föll åtta meter ner i ett betonggolv. De skulle montera en byggnadsstomme på ett timmerhus, men gavelspetsarna gav vika. Där fanns varken ställningar eller annan fallskyddsutrustning.Byggnadsarbetaren, nr 18, dec 2006, sd 11
6Arbetsmiljöverket har stoppat byggjobb 135 gånger under det senaste året. I 113 av förbuden fanns det akut risk för personskador då de handlade om risk för fall från hög höjd.Sedan slutet av 1990-talet har antalet byggarbetsplatser som stoppats av Arbetsmiljöverket ökat dramatiskt stoppades byggverksamhet 40 gånger. I år är siffran 135, en uppgång på 238 procent. Precis som vanligt har de flesta stopp, 113 stycken, satts i samband med risk för fall. Det handlar om dåliga ställningar som saknar skyddsräcken, om fallrisk från tak, om personer som jobbat utan personlig säkerhetsutrustning.Byggnadsarbetaren, nr 18, dec 2006, sd 20
7Types of hazardsChemicalPhysicalBiologicalErgonomic
8Examples of chemical hazards found in construction work: Chemicals can exist in the form ofdusts, fumes, fibers (solids)liquids, mistsgases, vaporsExamples of chemical hazards found in construction work:welding fumesspray paintscutting oil mistsxylene vaporsolventsasbestosleadsilicacadmiumcarbon monoxide
9Physical HazardsPhysical hazards are different types of energy which may be hazardous to workers.NoiseVibrationTemperature extremesRadiation
10Biological HazardsExposure may occur during demolition, renovation, sewer work, work on air handling systems, or other construction work from contact with contaminated or disease-carryingsoilwaterinsects (mosquitoes, ticks)bird, bat droppingsanimalsstructures
11Ergonomic HazardsErgonomic hazards can cause painful and disabling injuries till example Musculoskeletal Disorders (MSDs) . This following situation may causes these injuries:heavy, frequent, or awkward liftingrepetitive tasksawkward grips, posturesusing excessive force, overexertionusing wrong tools for the job or using tools improperlyusing improperly maintained toolshand-intensive work
12Types of accident measurements DeathFatal injury (broken leg, hips, amputation)Non-fatal injury (finger cut)Occupational accidents (MSD, hearing loss)Absence from work ( >1 day, > 3 days etc)Near missesRate per – number of injuries or causes of ill health per employees.Working days lost – days off work due to workplace injuries & work-related ill health
13Other health hazards Living conditions and welfare facilities Temporary accomodationFoodDrinking waterSanitary conveniencesFacility for clothingWork related mental stressesAlcoholism and drug addiction
15Construction accident record for 2005 (Samuelson & Lundholm, 2006)
16Causes of construction accidents 2005 Samuelson & Lundholm, 2006
17Existing health & safety legislations in practice ISOEUSwedenUKMalaysiaISO BS8800Framework Directive Council Directive 89/391/EECThe Work Environment Act (1997:1160)The Health and Safety at Work Act 1974The Health and Safety at Work Act 1994The Construction (Design and Management) Regulations 1994
18Reasons and benefits to improve health and safety in construction Responsibility;Economic reasons;Impact of safety on overall performance;Contractor’s performance;Control of accident causes.
19Responsibility Safety is everyone’s responsibility. It is a moral and legal obligation of employers to provide a safe working place and of employees to work safely.Employer’s duty of care to employees as covering the following areas:safe system of work;a safe place of work;plant and machinery that is safe to use;competent supervision and/or suitable training; andcare in the selection of fellow employees.
20Costs of accidents – direct costs and indirect costs
21Direct costsThe direct costs are insurance. These include medical costs and others workers’ compensation insurance benefits as well as liability and property-damage insurance.Indirect costsBelow are the lists of indirect costs:Transportation costs – include the cost of emergency transportation, together with the cost of other personnel that were necessary to get to the injured worker to proper medical facilitiesWages paid to injured worker for time not worked – include all the time in which the worker was not actually doing his or her job and for the wages paid.
22Cost incurred because of delays which resulted from accident – other crews affected or delayed; equipment idled; duration of project lengthened; plus all wages, rental fees and indirect supervision costs that occurred as a result of the accident.Costs of overtime necessitated by accidents – overtime occurred because of the accidentsLoss of efficiency of crew – decrease of crew efficiency due to low morale or reshuffling that might occur to replace an injured worker.Cost to break in and/or teach replacement worker – hiring new worker would include training and orientationCosts for clean-up, repair or replacement and stand-by costs – normally accidents involves spillage, cave-ins vehicle damage, material wastage or site clean-up
23 Extra wage costs, slower returned worker – normally when a worker return to the job site and is partially and/or temporarily disabled, the worker is probably working at a different, less demanding job or less efficient at the former job. Costs to reschedule work – include time spent to review and reschedule the project due to investigations or project being temporarily suspended by the authorities.Costs of wages for supervision as a result of the accidents – include all time spent on the accident and its results: caring for the worker’s medical treatment, investigation, completing forms, disseminating information, visiting the worker, planning to prevent recurrence, appearance in court
24Costs for safety and clerical personnel as a result of the accident – typing, investigating, forwarding forms, time with press, etc.OSHA and civil fines – paying fines.Cost of legal assistance – engaging a lawyer to settle the accident claims.Other costs – any other cost that were incurred because of the accidents.The average ratio of indirect costs to direct costs is 4:1.
25Impact of overall performance TimeBudgetAccident statisticsAbsentismLow morale
26Contractor’s performance Studies have proved that there is an adverse effect on a contractor’s reputation and unfavourable image for the client when the project suffers high accident rates.
27Control of accident causes Safety performance measurement enables behaviours and conditions to be identified that have the greatest potential in contributing to an accident.It also forms a basis to predict future accident problems and enables management to control the causes of accidents on site and establish long-term accident control.These measurement techniques provide continuous information concerning changes in the safety state within an organisation in operation.
28How to improve health and safety on construction sites? Reactive measuresAccident recording & reportingAccident investigationsProactive measuresH & s safety policyH & s safety programme/planH & s safety induction/trainingTool-box talkOthers
29Example of an accident analysis Accident: Falling off a stepladderThe unsafe act: Climbing a defective ladderThe unsafe condition: A defective ladderThe correction: Replace the ladderQuestions:Why was the defective ladder not found during normal inspection?Why did the supervisor allow its use?Didn’t the injured employee know it should not be used?Was the employee properly trained?Was the employee reminded not to use the ladder?Did the supervisor examine the job first?Answers:An improved inspection procedureImproved trainingA better definition of responsibilitiesPre-job planning by supervisors
30ReferencesGrifitth A & Howarth T Construction health & safety management. Pearson Education Limited.Samuelson B & Lundholm L Arbetsskador I byggverksamhet ByggindustrinsKunju Ahmad Developing a safety performance measurement tool (SPMT) for construction sites. Loughborough University thesis. UK.Heberle D Construction safety manual. McGraw Hill. USA.Davies V.J. Tomasin K Construction safety handbook. Thomas Telford, London.Brown Total integration of safety professional into project management. Proceedings. of the 1st International Conference of CIB, Libson, W99. pp