## 5 Methodology
### Call for Tenders Phase: Environmental Award Criteria within IMM and BIM Approaches
\begin{table}
\begin{tabular}{c c} \hline
**Evaluation Sub-Criterion** & **LEED Credit** \\ \hline \hline \multirow{4}{*}{A.1.1—Distance of the production site of materials} & MR Credit: Sourcing of Raw Materials: products sourced (extracted, manufactured, and purchased) within 100 miles (160 km) of the project site are valued at twice their base contributing cost, up to a maximum of 200\% of the cost. \\ \cline{1-1}  & ISO 14001 & ISO 14001 (evaluating environmental management system of companies) is not directly linked with LEED (evaluating building environmental performance). However, it has been demonstrated that companies implementing ISO 14000 standards are more likely to be able to provide buildings with higher energy and environmental performance, and consequently, higher LEED ratings [90; 91]. \\ \cline{1-1}  & MR Credit: Construction and Demolition Waste Management: develop and implement a construction and demolition waste management plan and achieve points through waste prevention and/or diversion. \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Parallelism between LEED credits and evaluation sub-criteria of the proposed tender. Considering each EWC non-hazardous waste code, the sum of the percentages \(\%_{Riu,\ m}^{i}\), \(m^{\prime}\), \(\%_{Ric,\ m}^{i}\), \(m^{\prime}\), \(\%_{Sma,\ m}^{i}\) shall be equal to 100% since it corresponds to the total amount of that specific non-hazardous waste material. On the other hand, for each EWC hazardous waste code, the single percentage \(\%_{Sma,\ p}^{i}\) shall be equal to 100% since the entire quantity of a hazardous waste material is represented by this percentage. The quantities of each m-th non-hazardous waste material to be reused (\(Q_{Riu,\ m}^{i}\)), recycled (\(Q_{Ric,\ m}^{i}\)), and landfilled (\(Q_{Sma,\ m}^{i}\)) shall be calculated as follows:  
\[Q_{Riu,\ m}^{i}=Q_{Rif,\ m}^{i}\.\ \%_{Riu,\ m}^{i}\ ;\ Q_{Ric,\ m}^{i}=Q_{Rif,\ m}^{i}\.\ \%_{Ric,\ m}^{i}\ ;\ Q_{Sma,\ m}^{i}=Q_{Rif,\ m}^{i}\.\ \%_{Sma,\ m}^{i}\]  
In addition, the quantities of each p-th hazardous waste material to be landfilled (\(Q_{Sma,\ p}^{i}\)) shall be calculated as follows:  
\[Q_{Sma,\ p}^{i}=Q_{Rif,\ p}^{i}\.\ \%_{Sma,\ p}^{i}\]  
The total amount (in kg) of non-hazardous waste to be reused (\(Q_{Riu}^{i}\)), recycled (\(Q_{Ric}^{i}\)), and landfilled (\(Q_{Sma-Nper}^{i}\), \(\mathrm{Nper}\): subscript for non-hazardous waste) shall then be calculated as follows:  
\[Q_{Riu}^{i}=\sum_{m=1}^{N}Q_{Riu,\ m}^{i}\ ;\ Q_{Ric}^{i}=\sum_{m=1}^{N}Q_{Ric,\ m }^{i}\ ;\ Q_{Sma-Nper}^{i}=\sum_{m=1}^{N}Q_{Sma,\ m}^{i}\]  
The total amount (in kg) of hazardous waste materials to be landfilled (\(Q_{Sma-per}^{i}\); \(\mathrm{per}\): subscript for hazardous waste) shall also be calculated as follows:  
\[Q_{Sma-per}^{i}=\sum_{p=1}^{N}Q_{Sma,\ p}^{i}\]  
where N is the total number of materials from Table 5.  
The total amount of waste (\(Q_{TOT}^{i}\)) is the sum of recycled, reused, and landfilled waste, considering both non-hazardous (subscript \(\mathrm{{}_{Nper}}\)) and hazardous materials (subscript \(\mathrm{{}_{per}}\)). \[Q_{TOT-Nper}^{i}=Q_{Riu}^{i}+Q_{Ric}^{i}+Q_{Sma-Nper}^{i}\]  
\[Q_{TOT-per}^{i}=Q_{Sma-per}^{i}\]  
\[Q_{TOT}^{i}=Q_{TOT-Nper}^{i}+Q_{TOT-per}^{i}\]  
The total percentages of materials for reusing, recycling, and landfilling of non-hazardous (subscript \(\mathrm{{}_{Nper}}\)) and hazardous materials (subscript \(\mathrm{{}_{per}}\)) shall be defined as follows: