The View On Sustainable Construction Construction Essay

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This chapter shows the statistical analysis for the data extracted from the questionnaire. 250 invitations were send to individuals who work in the Qatari construction industry to participate in the survey, requesting from them to give answers to the questions and also to share there own opinions regarding the research topic. Number of received responses were 79, with 8 incomplete answered copies. The uncompleted received questionnaire were excluded in the statistical analysis because of lack of enough data, but the comments which respondents added have been included in the conclusion.

The response rate was 31.6% Generally, responses rate in the construction industry are considered to be very low, because of the low interest of people in the field toward scientific and academic researches, and also could be due to the irrelevance of the survey subject to the respondents nature of work or interests.

Q1 : Respondents were asked to indicate their period of experience in the construction industry

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Figure 5.1 : Respondents professional experience

The chart in Figure 5.1 shows that 66 percent of the respondents are having between 5-10 years of experience, at the same time for those who have more than 10 years of experience they represent 21 % of the total responses, while the rest are people who have experience but less than 5 years.

Result shown that 87% of the sample have more than 5 years of experience in the construction industry, which would give more credible results to the research results as these people represent the intermediate to senior positions in the industry.

Q2 : Respondent were asked to indicate their job title

Figure 5:2 Respondents job title

Figure 2 shows that 61 percent of the targeted sample have their job titles as 'Engineer', that includes all specializations of (civil, mechanical and electrical) engineers, as well as architects who are working in different technical levels except construction and project managers. 'Construction managers' represents 8% of the sample, and the 'project managers' are 13%. A small percentage of 4% are from those who work as Quantity surveyors.

Reponses on the 'Other' option are 14% of the total responses, those identified themselves as working in the 'Health and Safety' departments, as well as some in the 'Research and Development' sections.

5.1.2: Organizational Information

Q3 : Respondent were asked to identify there organization's job type

Figure 5:3: Respondents organization type

In Figure 5.3, the chart shows that 44 percent from the respondents are working in contracting companies. Respondents who work in design and Consultation companies are 15%, Developers are 11%, Project Management companies are 7% and who represent the client side are 3% of the total sample respondents. 20 percent mentioned in the 'Other' option that they are working as Service Providers and others in the Electrical and HVAC systems suppliers.

Q4 : Respondents were asked to determine the total number of employees in there organizations

Figure 5.4 shows that the largest category with a percentage of 30 percent of respondents are working in companies that employ between 100 and 500 employees, next comes the companies of more than 10,000 employees with 25% of respondents are working there. Having 80 percent of respondents work in companies with over 100 employee (medium number to large number of employees companies) gives another description about the respondent companies, therefore the results of the research will suit more the medium to large business firms.

Figure 5.4 : Number of employees in respondent's organization

Q5 : Respondents were asked to identify how long has the company been in the market

Figure 5.5 : Number of years the company is in the industry

The previous chart in Figure 5.5 shows that 55 percent of the responses comes from people who work in companies that have been established and have been working in the Market for more than 20 years, respondents are working in companies have been working since 11-20 years represents 17 percent of the total sample. 24% from participants companies of 3-10 years of experience in the industry.

From this chart it is indicated that the majority of respondents -72 %-are working in companies that have been for more than 11 years in the market, which gives the results of this research more suitability to companies of long experience.

Q6 : respondents were asked to determine the company specialization

Figure 5.6 : Type of work in the respondent's company

The results in (Figure 5.6) shows that 32 percent of respondents work exclusively in the Commercial and Industrial buildings sector, next come the companies work in public sector projects, with a percentage of 23% of the total responses. Companies that work in the different sectors and not specialized in a certain field represent 13% of respondents participation, in addition to 6% who mentioned their field to be in the oil and gas works.

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To increase the reliability of the research results and to get more specific findings, an additional questions has been send to collect data about the annual turnover of the respondents companies; because during the data analysis it was important to show the financial situation of respondents companies, that will be benefited in the deciding which kind of companies the results would be applied on, . From the 71 original requests only one did not reply, 2 have apologized that there management consider the financial data to be confidential information and could not disclose them, and another 3 replied that they do not have the access to the financial situation of the company. The question numbered as 6A : Respondents were asked to determine the company annual turnover ($).

Figure 5.6A : Annual turnover of respondent's company in US dollar

This additional question gave a better understanding to the sample, as shown in figure A6 that people working in companies specialized in public projects, residential buildings, and commercial and industrial works are companies achieve $250 million to $5 billion in the year, with percentages 70%, 82% and 80% respectively. At the same time these three categories represent 70% from the total sample (figure 5.6) which leads to consider the sample to be more representative to medium-size to big companies.

5.1.3 view on sustainable construction

Q7 : Respondent's were asked if they agree that their companies are familiar with the green and sustainable practices in construction.

Figure 5.7a : Respondents opinions about company's familiarity in the sustainable construction practices Figure (5.7a) shows that more than 76 percent of the respondents agrees that their companies are familiar with the concept of sustainable construction practices, on the other side a small number of respondents (6%) disagree with it.

Figure (5.7b) is the representation of the responses based on the participants companies category, the chart shows that companies work in the Residential Buildings, Commercial and industrial buildings and the Public sectors in order are the most familiar with sustainable construction concepts, while companies specialized in the infrastructure works and those in Roads and pavements are the least familiar. Reason for that belongs to focus of sustainable construction codes and guidelines preliminary on the buildings sector, due to the variety of materials, systems and component which are not found in other sectors.

Figure 5.7b : Respondents opinions how familiar they are with sustainable concepts.

Q8 : Respondents were asked to identify how familiar they are with the following concepts:

Figure (5.8a) shows to what extent respondents are personally familiar with concept related to sustainable construction, results indicate that:

72% of respondents are familiar with CO2 emissions idea, and its negative impact, only 4% who indicate that they are strongly unfamiliar with it.

28 percent gave a neutral degree of familiarity to the concept of sustainable construction, while 64% of responses are familiar.

Regarding the principle of lean construction, more than half of the respondents sample agree to be familiar with it, 25% gave a neutral response and 21 % disagree.

Figure 5.8a : Respondents opinion on how familiar are they with sustainable concepts.

More than one third of the sample are neutral in front of Qatar Sustainability Assessment System (QSAS), and this concept represents the least familiarity of respondents comparing to the previous points, that only 32% indicated they are familiar with it.

Figures (5.8: b, c, d and e) are the answers for questions presented according to the category of specialization.

Figure 5.8b : Respondents opinion on how familiar are they with CO2 emissions and their impacts

Figures (5.8b) shows that Residential buildings sector is the most familiar with CO2 emissions and its negative impact on the environment with 87% of responses agree with that, then comes the public sector with 77% agree and 75% for the highway and pavement sector.

Figure 5.8c : Respondents opinion on how familiar are they with sustainable concepts

Figure 5.8d: Respondents opinion on how familiar are they with lean construction principles In the chart of figure (5.8b) respondents in the commercial and industrial buildings are the most familiar with sustainable construction concept, the reason as mentioned before because they are in touch with all kinds of codes and specifications related to green buildings. In the category "Others" 67% said they agree with the question, this group are more interested in research and development sides. The least percentage is in the infrastructures sector with 46% agree on the familiarity with the concept.

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Technical staff who work in the residential buildings and research and development sections as figure 8.d shows are the most familiar with lean construction principles, with 67% of the agree with this question, as well in the commercial and industrial building they represent 66% of this category who are also agrees with familiarity. The least is the section of Highways and pavements, although there is not many participants from this field, but the received answers give 25% agree and 25% disagree.

Figure 5.8e : Respondents opinion on how familiar are they with QSAS ‎0.1

Familiarity of the sample with QSAS is less than medium, that only 52% of the respondents in public sector agree they are familiar with it, residential buildings and commercial sectors are only 47% and 33% respectively. Reasons for that would refer to newness of QSAS deployment since 2009 .

Q9 : respondents were asked to determine if the sustainable practices in construction give more competitive advantage

Figure 5.9a :

Respondents opinion about the relationship between sustainable construction and competitive advantage The aim of this question was to find the opinions of participants about sustainable construction practices during the construction phase and its relationship with achieving more competitive advantage for the company,

results in figure (5.9a) shows that 73% of the respondents agree that sustainable practices in construction are useful in giving the company more advantage among other competitors.

Figure (5.9b) shows that the majority in residential buildings and the infrastructure sectors agree that sustainable construction practices give more competitive advantage to the companies. And that refers to the new requirements of clients in the private sector as well as governmental regulations to give priority of bids winning to companies which have previous experience with sustainable construction, or those which are interested to follow apply it in new projects. people from the research field 'others' are the least of agreeing with this relation, it may refer to lack of knowledge and experience about the construction market

and factors of effect.

Figure 5.9b : Respondents opinion about the relation between sustainable construction and competitive advantage

Q10 : respondents were asked to give their opinion about the complexity of sustainable construction in compare to the conventional way of construction

As shown in figure (5.10a), more than 54% of respondents agree that sustainable construction is more complicated to built than conventional projects, 41 % have neutral view regarding the question. One of the comments on the same question said :

Figure 5.10a : Respondents opinions about the sustainable construction complexity " complexity and difficulty of constructing a project depends on the staff experience ".

Figure 5.10b : Respondents opinion about the sustainable construction complexity

Figure (5.10b) shows that people in the residential building sector are the most agree of the complexity of sustainable construction more than the conventional building methods and practices, they consider it to be like this because of the many aspects that should be considered during project execution, such as materials, environment ,water … etc.

Figure 5.11a : Chart shows respondents

opinion about the sustainable construction budgeted cost compared to conventional construction Q11 : respondents asked to give their opinion about the more cost of sustainable construction than conventional construction.

From figure 5.11a, it is shown that around two third of the total responses agree with the idea that sustainable practices in construction cost more than the conventional way. While 16 % disagree with that.

Responses from participants working in the roads and pavements sector are highly agreeing (100%) with considering sustainable construction cost to be higher than conventional construction as shown in figure 5.11b, and that is one of the reasons that people are avoiding these practices. The last category of people working in the research and also service suppliers agree with it, because they are familiar with market prices specially for advanced and sustainable components.

The rest of other sectors gave variant percentages, but almost the same level of agreement and disagreement regarding the sustainable cost is shown below.

Comment received from a participant :

" initial cost would be high, but operational cost would be less "

Figure 5.11b : Chart shows respondents opinion about the sustainable construction budgeted cost compared to conventional construction

5.1.4 Sustainable Practices in Construction Site

5.1.4.1 : Materials

Q12 :. respondents were requested to tell if they agree that their companies are interested in using recycled materials.

As shown in (figure 5.12) 82% of the respondents from residential buildings group agree that their companies are interested in reusing or recycling materials in the construction work, next are highway and pavement companies. A look to the commercial and industrial buildings sector gives the percentage of 61% of those who agree. Disagreement came from infrastructures and general works sector and that may refer to the less interest from top management, from "others" group 25% disagree with the materials recycling due to consider them as an office job than to be in site.

Figure 5.12 : Chart shows respondents views on the companies usage of recycled materials

One of the comments from respondents said :

"Recycling of materials requires an open minded management, who understands the benefits of reusing/recycling of materials, and able to apply the policy on the whole system in the organization"

Although recycling materials gives an advantage for the company in reducing the negative impact on the environment, as well as reduction in the cost but recycling process in-site needs special issues to be considered; that containers for storing different materials in certain points in the project, and labors effort to separate materials which leads to slow down the process of main construction work (Lennon,2005)

Q13 : Respondents were asked to inform about using local products in the construction

Figure 5.13a : Chart shows respondents views on the companies dependency on local products Figure 5.13a shows that 58 percent of the sample agreed with the question, their companies depends on the local products. 17% disagreed with it. From observation, the construction market in Qatar depends generally on the local manufacturers for the civil works, electrical and other systems are widely imported. Many respondents added to this question that "designers sometimes ask for certain materials and products that local producers doesn't fulfill the specifications, which let contractors to find foreign suppliers".

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Respondents from different sectors views about using local products

Strongly Agree

Agree

Neutral

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Figure 5.13.b : Chart shows respondents views on the companies dependency on local products

Roads, Highways and Infrastructure companies are the most dependant on products manufactured in Qatar, as shown in figure 5.13b, because most of them are available locally. Companies of general construction works ,HVAC systems, electrical and residential buildings need to have imported appliances for their works

Q14 : respondents were asked to indicate to what extent they use durable materials in the site.

As shown in figure (5.14a), 68 percent of the responses agreed that their companies are using durable materials in their work, which means that they are curious about the life time of the construction and maintenance work

Figure 5.14a : Respondents views on the dependency of companies on durable materials when needed. 4% of the sample disagreed with it.

Participant also mentioned the role of designer in determining the specification and types of materials and systems used.

In figure 5.14b it is shown that almost all the construction sectors are interested of using durable materials, they usually have the contracts of defects and maintenance liability for certain years after commissioning, which encourage companies to deal with durable products to be in the safe side. It is mentioned from the residential buildings side that some do not agree in using them in their projects, this is may occurred because for some residential buildings are completely sold to the new inhabitants and the construction company is not responsible about the structure any more.

Figure 5.14b : Respondents views on the dependency of companies on durable materials

5.1.4.2 : Energy

Q15 : respondents asked to indicate the main reasons for energy consumption in the construction site

Chart of figure 5.15a shows that:

Respondents put lack of knowledge in the first rank as a factor of high energy consumption during the construction, that 95% of the sample agreed with it to be a main reason.

Low interest of top management came next, that 82% of respondents agree that it is a reason for the high consumption of different forms of energy.

Comments from participants : " Management is always pushing to finish before the deadline, and they are more tight to the time schedule, energy issues lay in the bottom of their interests list".

Figure 5.15a : Respondents views about the reasons of high energy consumption

Although 10 percent disagreed with considering no obligations to be a reason for energy consumption, but 76% of the responses agreed with it.

A respondent commented : "There are some obligations that focus on protecting environment and safety precautions, but not energy"

The low cost of fuel and Fast tracking principles came almost in the same level according to respondents views, where 59% gave an agreement that the above points are reasons for high energy consumption in Qatar, also 32% of them gave a neutral answer.

The term low cost of electricity came in the last rank, half of the responses agreed to consider it as a reason, 9% disagreed.

Looking at responses based on the industry category :

Figure 5.15b : Respondents views about the reasons of high energy consumption (Low cost of fuel) Figure 5.15b shows that sectors of infrastructures, roads and pavements works are highly agreeing in considering the low cost of Fuel as a reason for consuming too much energy, that is because these companies work uses mainly large number of equipments that depend on fuel as a source of energy. while the category of "others" : research and services supply stand neutral in the front of this factor to consider it as reason for energy consumption.

lack of knowledge

Figure 5.15c : Respondents views about the reasons of high energy consumption (lack of knowledge) was a factor that has been agreed almost unanimously from all participants. Figure 15.5c shows a percentage of 17% of Others category do not agree with the point.

Figure 5.15d : Respondents views about the reasons of high energy consumption (lack of management interest) People in different sectors generally agree with the lack of management interest to be a reason for more energy consumption, the results are shown in figure 5.15d, respondents say that when managers are following a strategy of saving energy shared with all the staff it encourage the company to work under the same vision of managers.

Figure 5.15e : Respondents views about the reasons of high energy consumption (fast tracking) Highways and pavements sector agree that fast tracking causes higher energy consumption, that it is due to the energy consumed in the night time working, where facilities are required to increase the work speed. Figure 5.15e also describes that other sectors give a neutral response to this point, either that they do not see a direct connection between energy consumption and fast tracking activities, or they do not resort to it in their work.

Figure 5.15f : Respondents views about the reasons of high energy consumption (Low cost of electricity)

Although electricity tariff in Qatar is very low comparing with the international prices - between $ 0.01-0.02 /KWH according to property use and quantity of consumption-, but responses are between neutral to agree with considering electricity low tariff to be a reason for more energy consumption. In figure 5.15f it is seen that commercial and industrial sectors are the most agreeable because they use many equipments and facilities that depend on electricity as power sources during the construction.

Rate of responses from different sectors that agree with looking at no obligations to be a reason for higher energy consumption is respectively high. Figure 5.15g . Minority disagree explaining that it is difficult to find obligations that force companies to save energy,

Figure 5.15g : Respondents views about the reasons

of high energy consumption (no obligations)

because there is no practical measuring for that, but some courses or guidelines that are held by the government or the private sector to increase the awareness of people in the field is a better way for energy saving.

Q16 : respondents were asked to determine if their companies implement policies to save energy during construction

Figure 5.16a shows the degree of companies to form saving energy policies in the construction phase, around half of the respondents agreed their companies depend on it, but at the same time one third disagreed toward this action.

Figure 5.16a :Respondents views on the implementation of policies to save energy during construction

Relating this part with the previous in question 15, figure 5.16b shows that around 60% of respondents working in projects for public sector and industrial buildings are having more tendency to work under a policy for saving energy. Another observation related with the companies turn over and this practice, it is found that the larger the company with higher turn over the more it is interested to have the energy saving plan.

Figure 5.16b : Respondents views on the implementation of policies to save energy during construction

Q17: respondents were asked to determine the companies usage of Renewable Energy sources

Figure 5.17a : Respondents views on the implementation renewable energy sources in construction projects.

As previously mentioned in chapter 2 that the national development strategy in Qatar for the period between 2011-2016 is striving to broaden the dependency on renewable energy sources in the country, and although it encourages stakeholders to invest more in this side by having more facilities, but survey results did not reflect positive trend toward that. Figure 5.17a shows that:

One third of the sample agreed they are using wind turbines as a source of alternative energy, but a larger group of 40% disagreed with using it in their projects.

Although the sun is one of the most important sources of energy in Qatar (average of 16 sunny hours/day) with clear sky most days of the year, but respondents agreed they depend o solar systems were only 27% of the sample,38% disagreed with the point, and the same percentage gave the neutral answer.

Hydropower and Geothermal came in bottom of the list, 62% disagreed of using geothermal system, and 64% disagreed with using the hydropower.

Comments from respondents mentioned the tie energy power, which is used in the new projects near the cost, and specially in the "Pearl artificial island" in Doha.

Residential buildings and roads works companies are more familiar with using solar energy during the phase of construction, this energy generated by solar panels is exploited in generating electricity to feed the offices and in-site accommodations, as shown in figure 5.17b.

Figure 17.b : Respondents views about using solar energy in construction projects

Infrastructures companies are the least user of solar energy, that may refer to the nature of construction site layout in the infrastructure projects, where they usually need large empty spaces for materials collecting, and equipments maneuvering and parking.

Figure 5.17c : Respondents views about using wind energy in construction projects

Exploiting wind power energy is very humble in the construction projects in Qatar, figure 5.17c shows high percentages of respondents who does not use this source of power in their projects, because wind energy needs special appliances of wind turbines that requires specialists in installation, maintenance and operation, and that is not so available in the country. secondly construction projects are usually fast and temporary, which will add extra effort on the engineering firms to consider the wind energy as an alternative in the in the site.

But it is shown in 'others' category that many respondents uses the wind energy, it would be referring to the oil and gas projects, as the companies are responsible about operating in some cases, which let them be interested in applying different alternatives for power sources.

Figure 5.17d : Respondents views about using

hydropower energy in construction projects

As motioned in the disruption of figure 5.17a there is no high demand on the hydropower energy in Qatar in general. The only applications as seen in figure 17.d are in the oil and gas sector, because they have permanent stations inshore near the coast, or out shore inside the sea, and they try to exploit the tied energy but in a narrow field.

Figure 5.17e : Respondents views about using geothermal energy in construction projects

From figure 5.17e it is very obvious that geothermal energy system is not widely used in the country, some respondents in the projects of public sector and service suppliers agree with using the geothermal system for cooling, in addition to very few projects in commercial sector.

Figure 5.18a : Respondents views

about studies for equipments

need done before starting the project

Q18 : Respondents were asked to determine if the companies study the matching between equipments and the job requirements.

As shown in (figure 5.18a) that 68 % of responses agree that companies make a study of the needed equipments for the construction work or any needed equipments, that match the work nature and needs. Only 7 % of the responses mentioned that their companies do not take this action.

Figure 18.b : Respondents views about congruency between equipments and the job nature.

As the highways and roads companies depend basically on the equipments to achieve their projects objectives, then people from this sector give the full agreement of making this study before the projects start. Figure 18.b

5.1.4.3 : Human Aspects

Q19 : Respondents were asked to clarify if they agree that their companies train employees on sustainable construction practices.

Less than half of the sample agree that their companies give training on sustainable construction to the employees. From figure 5.19a over than one third give neutral answer, they commented that they receive some formal correspondences which ask employees to pay attention for certain practices related to sustainability, but considered to be nominal and unserious guidance.

Figure 5.19a : Respondents views about employees training held by companies in the sustainable construction concepts.

By looking to answers based on companies categorization, figure 5.19b shows that infrastructures companies are the least interested in training their employees. The companies specialized in public sector projects are divided into 37% agree and 38% disagree. Residential buildings are the most interested in this training, connecting that with the answer of question 9 about competitive advantage, it is obvious that companies in this field believe that sustainability in construction is a way to create better competency in the market. People who work in Oil and gas companies and others in research and development departments give positive to neutral answers comparing with others.

Figure 5.19b : Chart shows respondents views about employees training programs held by companies in the field of sustainable construction

Q20 : Respondents were requested to tell if they agree that their companies offer clean and healthy work place

One of the faces of social dimensions in sustainability is the atmosphere at which employees are living in their daily work, and the workplace healthiness and cleanness is measured and results are in figure 5.20. Roads and pavements companies are the least healthy and clean workplace among others, respondents commented that it is due to the sandy environment of site locations, and usually they have mobile caravans for site offices to move them easily in the future, that will not help to find the clean place. All other sector care in the workplace to a point, according to the site conditions, companies size and working staff.

Figure 5.20 : Chart shows respondents views about the work place cleanness and healthiness the companies offer

5.1.4.4 : Waste Management

Figure 5.21a :Respondents answers about having a waste management plan in the project

Q21 : respondents were asked to indicate if they have waste management plan issued in the preconstruction phase

( Figure 5.21a ) represents 73% of participants agreed that they have a waste management plan that has been issued in the preliminary stages of planning to the project.

Figure 5.21b shows that companies who have a waste management plan for the construction site varies between 73% - 83% of the respondents from each category, except the companies of infrastructure works; respondents give 71% that they disagree of having the plan.

Figure 5.21b : Respondents answers about having a waste management plan in the project

Q22 : Respondents who agreed of using WMP in work (question 21) were asked to inform the commitment of the company to apply this plan.

73% form the whole sample participated in this part, as shown in (figure 22.a) 57% of them agree that the waste management plan is followed in the construction site, and 27% give the neutral answer.

Figure 22.a : Respondents answers about having a waste management plan in the project

In figure 5.22b it is shown that the highways and pavement group are the most committed to the WMP application, it may refer to the fact that number of activities and materials in the roads construction site are so little comparing with the other construction sectors, which gives the site management level better opportunity to give extra interest to the waste materials and a better change to exploit it in efficiently. The rest of the sectors are showing variety in following WMP in reality, with a degree of disagreeability in the sectors of (Commercial, Residential and Public), the reason for that is the lack of knowledge or equipments to manage the waste, which means WMP are formed without evaluating the real capacity of the project.

Figure 5.22b : Respondents answers about having a waste management plan in the project

Q23 : Respondents were asked to clarify if engineering team make frequent revision or modification to plans that lead to minimize wastes

Revising plans to minimize construction waste is more occurred between buildings construction site teams than others in roads and infrastructures fields, that is shown in figure 5.23. The idea behind this fact that for buildings it is easier for designer or constructor to find different alternatives and solutions for a certain point, variety of systems, materials, dimensions as well as function of use. But that is not the same in the infrastructure and roads projects, at which very sight changes in specifications or materials are occurred due to the limitations of alternatives.

Figure 5.23 : Respondents answers regarding plans revision to minimize waste.

5.1.4.5 : Water

Q24 : Respondents were asked to indicate the availability of measures to water consumption in the projects

Figure 5.24a shows that 74% of respondents agree of using water consumption control systems internally: offices toilets and accommodation, but regarding the site the percentage is lower, where 60% agree with.

Figure 5.24a : Respondents opinions about

water consumption measurement in construction site

Figure 5.24b : Respondents opinions about using water consumption measures in construction site internally

General construction works group are the most applying water consumption measures in the internal environment of their projects. As figure 5.24b clarifies, other groups have also the same practice but in a lower level.

The external environment (in-site) practice is less focused regarding this performance. Figure 5.24c gives respondents views which are majorly limited between agree and neutral sides.

The reason for that is the more difficulty in controlling and less organizing of the construction site, although some companies determine certain points for water supply, but workers and subcontractors mainly care about finishing the tasks faster without paying attention to other groups or regulations, therefore they create other unorganized ways for using water. The other problem in this point is the water consumed for soil suppression, this is an uncontrollable operation which consumes big amounts of water to reduce dust effect.

Figure 5.24c : Respondents opinions about using water consumption measures in construction site externally

5.1.4.6 : Environment

Q25 : Respondents were asked to mention if some certain practices are taken place in their companies.

Respondents in different construction sectors gave almost close level of agreeability on this quest ion, so the description will not show each single category own answers separately. Figure 5.25 shows that :

62% of respondents agree with applying practices that do not harm the biodiversity around the project, 37% give neutral answer to the point with a comment that many big companies working in the oil and gas field, infrastructures and highways executing there work in the desert.

Some materials wastes and packaging are burned in the site instead of send them for recycling; which contains harmful air emissions. Only 7% disagree that their companies forbidding this practice.

75% agree that their companies usually do not depend on toxic or hazardous materials in their projects, the rest of 25% give neutral response.

Figure 5.25 : Respondents answers on some practices occurred in their projects that minimize negative environmental impact.

Covering some materials in the site is common between the sample, 78% agree of having this performance in their projects, which helps in reducing the dust comes from sands, cement and any other materials.

85% of responses agree with screening the site to stop dust spreading. As mentioned in (question 24) usually water is used to control the sand suppression.

Q26 : Respondents were asked to inform if the company arrange ecological survey for the site before construction.

Figure 5.26 : Respondents views on having ecological survey for the site before construction.

Figure 5.26 shows that sectors of highways and infrastructure works are the highest applicable for ecological survey before starting the projects execution with 100% and 80% respectively agree from participants in each category, the residential building section is the least with only 45% of the respondent in this sector agree with the point. The result may refer to the location of the construction site, residential buildings are usually in the inhabited areas, and occupy small area comparing with roads and infrastructure projects, which may extend long distances inside and outside cities, that requires more logistic preparations in different sides.

5.1.4.7 : Transportation

Q27 : Respondents were asked to give their opinions about the importance of having workers and staff accommodation close to the project

Agreement with this point came from high percentage of the respondents, except from those who work in roads and pavements projects, in figure 5.27 it is shown that this group disagree with the importance to have the accommodation close to projects. Although it is an advantage for the company to reduce the burden of transportation, and participating in a sustainable practice, but the roads projects depend on the equipments more than dependency on the work force.

Figure 5.27 : Respondents views on the importance of having the accommodation to be close to the construction site

Q28 : Respondents were asked to show if their companies make frequent assessment for sustainable construction implementation.

Minority of the sample agree with having frequent assessment for sustainable construction practices in their companies. Figure 28.a also illustrates that 41% are neutral to the point.

Figure 5.28a : Respondents views on

making regular assessment for

sustainable practices in their companies

The 'others' category represent the highest agreement with a percentage of 50% of them have the assessment in their companies. Figure 28.b shows that disagreement and neutrality in answers came from the majority, that may refer to the lack of managements interest to find a certain internal department which will be responsible to follow up sustainability concepts. Some comments mentioned that although this assessment is part of construction managers and site managers job tasks, but they are more focused on the routinely work activities which include some sustainable issues, but not to have a totally separated system for that.

Figure 5.28b : Respondents in different sectors views on making regular assessment for sustainable practices in their companies

Q29: Respondents were asked about their opinions, on how do the Qatari regulations encourage to apply sustainability in construction.

Figure 5.29a : Respondents views on how much Qatari building regulations encourage to apply sustainable practices.

67 % of the sample agree with the question. Figure 29 shows that 24 percent are neutral against the point.

Figure 29.b : Respondents in different sectors views on how much Qatari building regulations encourage to apply sustainable practices.

Figure 5.29b illustrates that people in different construction sectors have different point of views regarding the question. 100 % of people who work in (Oil and gas sector, research and development and HVAC service suppliers) agree with the point. Industrial, residential and public buildings sectors give almost the same percentage of agreement varies (72%-75%). Highest negative responses are from Roads and infrastructure groups, who see that most of the regulations are for the buildings sector, and not applicable in all types of construction projects.