This paper mainly investigates the thermal comfort of the kitchen in pantry cars on Indian railways in two seasons (summer and winter) and two climatic zones (humid and subtropical climate zone and tropical wet and dry climate zone). A questionnaire survey on subjective feelings of thermal comfort was conducted among 69 chefs working in 14 kitchens of pantry cars on Indian railways. Their physical parameters of thermal comfort were also measured. Based on the survey results and measured data, the authors analyzed the comfort perception and thermal responses of the chefs in the kitchens, with the aid of indices like predicted mean vote (PMV) and predicted percentage dissatisfied (PPD). The results show that outdoor environmental parameters have an effect on indoor environmental parameters during the cooking; the maximum range of thermal comfort parameters was found at lunch and snack preparations, while the minimum was observed at breakfast; the PMV/PPD index method does not apply directly to the evaluation of thermal comfort in the kitchen in pantry cars on railways; the neutral temperature of chefs in summer and winter was 23°C and 21.62°C, respectively. These findings help to improve the indoor working environment of chefs on Indian railways.

An Indian railway pantry car kitchen is a typical kitchen, where involves various kinds of thermal environment factors. Till now, the research related to pantry car kitchen is rarely reported. Therefore, this pilot study explores the thermal environmental factors and its impact on the chef’s comfort in two different pantry car kitchen (Non-AC and AC) using a subjective and physical measurement technique. The thermal comfort level was quantified by Predicted Mean Vote (PMV) Index and Predicted Percentage Dissatisfied (PPD) Index. The thermal sensation of non-air-conditioned pantry cars was hot with PMV and PPD values are 2.93 and 99% respectively. Whereas, air-conditioned pantry cars was a warm thermal sensation with PMV and PPD values are 2.17 and 84% respectively. Moreover, most of the chef (86%) are perceived thermal discomfort in both pantry car kitchens. The result concluded that both types of pantry car kitchens are having thermal sensation effect of hot and warm. A further detail study is necessary and a possible design intervention may require to enhance thermal comfort of chefs.

Fall from height (FFH) in the construction industry has earned much attention among researchers in recent years. The present review-based study introduced a science mapping approach to evaluate the FFH studies related to the construction industry. This study, through an extensive bibliometric and scientometric assessment, recognized the most active journals, keywords and the nations in the field of FFH studies since 2000. Analysis of the authors’ keywords revealed the emerging research topics in the FFH research community. Recent studies have been discovered to pay more attention to the application of Computer and Information Technology (CIT) tools, particularly building information modelling (BIM) in research related to FFH. Other emerging research areas in the domain of FFH include rule checking, and prevention through design. The findings summarized the mainstream research areas (e.g., safety management program), discussed existing research gaps in FFH domain (e.g., the adaptability of safety management system), and suggests future directions in FFH research. The recommended future directions could contribute to improving safety for the FFH research community by evaluating existing fall prevention programs in different contexts; integrating multiple CIT tools in the entire project lifecycle; designing fall safety courses to workers associated with temporary agents and prototype safety knowledge tool development. The current study was restricted to the FFH literature sample included the journal articles published only in English and in Scopus.

The manufacturing era is going through an evolutionary phase from Industry 3.0 to Industry 4.0 (I4.0). In 2011, Germany initiated I4.0 during the Hanover fair in collaboration with industrialists, academicians and researchers. The benefits of implementing I4.0 are attracting the curiosity of practitioners. In current academic literature, there is little discussion related to analysing potential roadblocks of I4.0 implementation using mathematical modelling. This paper has identified roadblocks through an extensive literature review and validation has been carried out by gathering experts' opinions. As per the findings, the identified roadblocks have been categorized into five sections: management roadblocks, operational roadblocks, human resource roadblocks, procedural and behavioural roadblocks.A case study of the automobile industry has been discussed. The data was collected from experts in the area of I4.0. A Graph Theory and Matrix Approach (GTMA) was applied to evaluate the relative intensity of the roadblocks, Comprehensive I4.0 Index (CII) and its range for each category of roadblock. Implications for industrialists, practitioners and academicians are provided.

Accidents in construction industry have the major negative impacts in many countries. The objectives of this paper are: (1) examine the current safety practices in Indian construction industry (2) identify the causes of accidents (3) recommend solutions to improve safety performance at Indian construction workplace. Interviews were conducted with experienced professionals in Indian construction industry. Results indicated that accidents were caused by the combination of organizational and individual factors. Based on these findings, it was suggested that adoption of information technologies in various ways would help to reduce accidents by addressing the following issues (1) safety planning, (2) safety education and (3) safety monitoring.

Purpose Construction workers’ health and safety (CWHS) research in India has not gained much attention among researchers. This study aims to review articles related to CWHS research in India using a science mapping approach. Design/methodology/approach A total number of 64 journal articles published between 2004 and 2019 were extracted from the Scopus database using keywords including “construction safety,” “occupational health,” “ergonomics in construction,” etc. VOSviewer software was used to examine the influential keywords, documents, sources and authors in the field of CWHS. Findings The study found that most of the current work focuses on safety management, safety climate, safety performance, musculoskeletal disorders and behavior-based safety. The result indicates no theoretical basis for the theories and learning methods for the existing studies. Practical implications The findings open up a research gap that researchers explore to enhance workers’ health and safety within the Indian construction environment. Originality/value The paper is the first article to provide a better understanding of current research in the field of CWHS in India by analyzing its growth through the science mapping approach.

This study details the consequences of a thermal comfort survey conducted in N-AC "Non-Airconditioned" and AC "Airconditioned" pantry car kitchens in Indian Railways. The research was carried out on 6 railway pantry car kitchens in which 29 chefs participated. Field measurement and subjective evaluation techniques performed in this study during the working period of chefs. The aim of the present research to compare N-AC and AC railway pantry car kitchen. While the objective of the study was to determine the thermal comfort parameters "air temperature, mean radiant temperature, relative humidity and air velocity" of both pantry car kitchens and examine the subjective responses; and to evaluate the thermal comfort of both pantry car kitchens using the PMV "Predicted Mean Vote" and PPD "Predicted Percent Dissatisfied" indices and compare them with actual sensation votes. A result of this study revealed that all thermal comfort parameters do not comply with the recommended ASHRAE 55 Standard in both pantry car kitchens. There is no considerable difference between both pantry car kitchen based on the subjective assessment during the working period and all the chefs' votes were found to be outside the range of the ASHRAE 55 central three categories (-1, 0, +1) votes. Which indicates that the chefs are not satisfied with the current environment. While for N-AC pantry car, PMV and PPD value estimated were 3.10 and 99% respectively, with "hot" thermal sensation. Similarly, for AC pantry car, PMV and PPD value estimated were 2.21 and 85% respectively, with "warm" thermal sensation. The estimated values of PMV and PPD do not follow the ASHRAE-55 2017 and ISO 7730 standard. Therefore, PMV indices are not directly applicable for thermal comfort application in a pantry car kitchen environment due to high temperature. In both the pantry car kitchen, there is no difference between predicted and actual sensation votes. In further establish the other method and technique to identify the comfort temperature for better workmanship of chefs in a pantry car kitchen.

Background:American Optometric Association defines Computer Vision Syndrome (CVS) as “complex of eye and vision problems related to near work which are experienced during or related to computer use.” This happens when visual demand of the tasks exceeds the visual ability of the users. Even though problems were initially attributed to computer-related activities subsequently similar problems are also reported while carrying any near point task. Jewellery manufacturing activities involves precision designs, setting the tiny metals and stones which requires high visual attention and mental concentration and are often near point task. It is therefore expected that the workers engaged in jewellery manufacturing may also experience symptoms like CVS.Aim:Keeping the above in mind, this study was taken up (1) To identify the prevalence of symptoms like CVS among the workers of the jewellery manufacturing and compare the same with the workers working at computer workstation and (2) To ascertain whether such symptoms have any permanent vision-related problems.Setting and Design:Case control study.Materials and Methods:The study was carried out in Zaveri Bazaar region and at an IT-enabled organization in Mumbai. The study involved the identification of symptoms of CVS using a questionnaire of Eye Strain Journal, opthalmological check-ups and measurement of Spontaneous Eye Blink rate. The data obtained from the jewellery manufacturing was compared with the data of the subjects engaged in computer work and with the data available in the literature.Statistical Analysis:A comparative inferential statistics was used.Results and Conclusion:Results showed that visual demands of the task carried out in jewellery manufacturing were much higher than that of carried out in computer-related work.