When construction accidents occur, besides the direct impact on the victims, there may be collateral effects on the remaining/uninjured workers. In the context of the aftermath of accidents on construction sites, this research investigates the extent to which the uninjured workers’ productivity is affected; and uncovers the more effective measures to be instituted on workers after witnessing construction accidents so as to prevent further loss of their productivity. A questionnaire survey was conducted on randomly selected construction professionals who had been supervising workers when and after accidents took place on construction sites in Singapore. The data collected were analyzed using the SPSS software. The first finding is that workers’ productivity and wellbeing fall significantly after witnessing construction accidents. They have lower morale, are distressed by the accident and stressed by having to take on additional work or accelerate their work after construction resumes on site. This research found that while a worker’s wellbeing deteriorates significantly in the aftermath of a construction accident, there are upsides to construction accidents too. Workers are observed to adopt better work attitude and have higher sense of safety after construction accidents. Significant positive correlation is found between workers’ wellbeing and their productivity. The second finding is that the workers turn to fellow workers and supervisors for support post accidents. Relieving them from duties are also effective measures to alleviate the psychological effects of the accidents. The study found that to minimize the negative effects of construction accidents, contractors should improve site safety swiftly, offer employee assistance program, relieve workers from regular duties temporarily and refrain from overloading them after work is allowed to resume. It is recommended that supervisors avail themselves to the workers, for example, through mass psychological debriefing or one-to-one counselling.
{"title":"Measures to Regain Productivity After Construction Accidents","authors":"F. Ling, Zhe Zhang, Limin Guo","doi":"10.3311/ccc2019-098","DOIUrl":"https://doi.org/10.3311/ccc2019-098","url":null,"abstract":"When construction accidents occur, besides the direct impact on the victims, there may be collateral effects on the remaining/uninjured workers. In the context of the aftermath of accidents on construction sites, this research investigates the extent to which the uninjured workers’ productivity is affected; and uncovers the more effective measures to be instituted on workers after witnessing construction accidents so as to prevent further loss of their productivity. A questionnaire survey was conducted on randomly selected construction professionals who had been supervising workers when and after accidents took place on construction sites in Singapore. The data collected were analyzed using the SPSS software. The first finding is that workers’ productivity and wellbeing fall significantly after witnessing construction accidents. They have lower morale, are distressed by the accident and stressed by having to take on additional work or accelerate their work after construction resumes on site. This research found that while a worker’s wellbeing deteriorates significantly in the aftermath of a construction accident, there are upsides to construction accidents too. Workers are observed to adopt better work attitude and have higher sense of safety after construction accidents. Significant positive correlation is found between workers’ wellbeing and their productivity. The second finding is that the workers turn to fellow workers and supervisors for support post accidents. Relieving them from duties are also effective measures to alleviate the psychological effects of the accidents. The study found that to minimize the negative effects of construction accidents, contractors should improve site safety swiftly, offer employee assistance program, relieve workers from regular duties temporarily and refrain from overloading them after work is allowed to resume. It is recommended that supervisors avail themselves to the workers, for example, through mass psychological debriefing or one-to-one counselling.","PeriodicalId":231420,"journal":{"name":"Proceedings of the Creative Construction Conference 2019","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130995743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Contractor H&S is influenced directly and indirectly by clients. Furthermore, traditionally, worldwide, better practice client organisations have maintained rigorous contractor H&S management programmes and contributed to contractor H&S. Given the above, a self-administered questionnaire survey was conducted among developer members of the South African Property Owners Association’s (SAPOA) to determine construction H&S perceptions and practices. Findings include: clients view the traditional project parameters of time, quality, and cost as more important than public H&S and project H&S; client organisations can be deemed to have influenced and contributed to contractors’ H&S relative to a range of interventions / requirements; clients appoint agents to fulfil their function in terms of the Construction Regulations; a range of design, procurement, and construction aspects impact on H&S; a range of benefits accrue from client contributions to contractor H&S; clients contend that they have influenced construction H&S, and that they could influence construction H&S more, and a range of design, procurement and construction aspects / interventions can contribute to an improvement in construction H&S. Conclusions include that clients do influence construction H&S and that multi-stakeholder benefits accrue there from, and that clients can further contribute to construction H&S. Furthermore, the client related requirements of the Construction Regulations are underscored by the findings. Recommendations include that property and other built environment tertiary education related programmes should address construction H&S, and SAPOA and other professional associations should evolve construction H&S practice notes. Creative Construction Conference 2019.
{"title":"Clients and Construction Health And Safety (H&S)","authors":"J. Smallwood","doi":"10.3311/ccc2019-090","DOIUrl":"https://doi.org/10.3311/ccc2019-090","url":null,"abstract":"Contractor H&S is influenced directly and indirectly by clients. Furthermore, traditionally, worldwide, better practice client organisations have maintained rigorous contractor H&S management programmes and contributed to contractor H&S. Given the above, a self-administered questionnaire survey was conducted among developer members of the South African Property Owners Association’s (SAPOA) to determine construction H&S perceptions and practices. Findings include: clients view the traditional project parameters of time, quality, and cost as more important than public H&S and project H&S; client organisations can be deemed to have influenced and contributed to contractors’ H&S relative to a range of interventions / requirements; clients appoint agents to fulfil their function in terms of the Construction Regulations; a range of design, procurement, and construction aspects impact on H&S; a range of benefits accrue from client contributions to contractor H&S; clients contend that they have influenced construction H&S, and that they could influence construction H&S more, and a range of design, procurement and construction aspects / interventions can contribute to an improvement in construction H&S. Conclusions include that clients do influence construction H&S and that multi-stakeholder benefits accrue there from, and that clients can further contribute to construction H&S. Furthermore, the client related requirements of the Construction Regulations are underscored by the findings. Recommendations include that property and other built environment tertiary education related programmes should address construction H&S, and SAPOA and other professional associations should evolve construction H&S practice notes. Creative Construction Conference 2019.","PeriodicalId":231420,"journal":{"name":"Proceedings of the Creative Construction Conference 2019","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134350519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Today, buildings are operated according to the standards (i.e. thermal), however; the recommended values in the standards might not necessarily address occupants’ needs, and, thus, occupant complaints might arise. This study aims at assessing the performance of the predicted mean vote (PMV) model to detect occupant thermal dissatisfaction. The case study was conducted in a commercial building located in Paris, France between January 2017 and May 2018. Indoor environmental conditions were monitored via sensors and an online tool was used to collect occupant thermal complaints. A total of 53 thermal complaints were analyzed and the corresponding measurements were checked against the reference values suggested by the ISO 7730 Thermal Comfort Standard. The results show that all of the operative temperature measurements both in the heating and cooling seasons were within the thresholds suggested by the standards. In addition, the PMV method suggested that only 4% of the occupants were dissatisfied with the indoor environment. However; the actual dissatisfaction ratio of occupants was 100% under these indoor environmental conditions. The findings of this study show that predefined comfort ranges, and, thus thermal comfort standards are not able to predict occupant thermal dissatisfaction. conditions against the standards along with the analysis of thermal complaints. This study aims at investigating the compatibility of indoor environmental conditions against ISO 7730 Thermal Comfort Standard in a commercial building as well as analysing the thermal complaints obtained from the occupants. The following sections introduce the material, present the methodology, provide results and conclusion.
{"title":"Do Thermal Comfort Standards Ensure Occupant Satisfaction? Learning From Occupants’ Thermal Complaints","authors":"Ezgi Kocaman, Merve Kuru, G. Calis","doi":"10.3311/ccc2019-093","DOIUrl":"https://doi.org/10.3311/ccc2019-093","url":null,"abstract":"Today, buildings are operated according to the standards (i.e. thermal), however; the recommended values in the standards might not necessarily address occupants’ needs, and, thus, occupant complaints might arise. This study aims at assessing the performance of the predicted mean vote (PMV) model to detect occupant thermal dissatisfaction. The case study was conducted in a commercial building located in Paris, France between January 2017 and May 2018. Indoor environmental conditions were monitored via sensors and an online tool was used to collect occupant thermal complaints. A total of 53 thermal complaints were analyzed and the corresponding measurements were checked against the reference values suggested by the ISO 7730 Thermal Comfort Standard. The results show that all of the operative temperature measurements both in the heating and cooling seasons were within the thresholds suggested by the standards. In addition, the PMV method suggested that only 4% of the occupants were dissatisfied with the indoor environment. However; the actual dissatisfaction ratio of occupants was 100% under these indoor environmental conditions. The findings of this study show that predefined comfort ranges, and, thus thermal comfort standards are not able to predict occupant thermal dissatisfaction. conditions against the standards along with the analysis of thermal complaints. This study aims at investigating the compatibility of indoor environmental conditions against ISO 7730 Thermal Comfort Standard in a commercial building as well as analysing the thermal complaints obtained from the occupants. The following sections introduce the material, present the methodology, provide results and conclusion.","PeriodicalId":231420,"journal":{"name":"Proceedings of the Creative Construction Conference 2019","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134112467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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