## 5 Methodology
### Call for Tenders Phase: Environmental Award Criteria within IMM and BIM Approaches
In addition, the criteria and sub-criteria used to evaluate the bids in the tender are aligned with LEED certification criteria (Table 4) [89]. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Category** & **Criterion** & **Evaluation Sub-Criterion** & **Sub-Criterion Value** \\ \hline \hline \multirow{6}{*}{A—Passive element requirements} & A.1—Material production site distance & A.1.1—Distance of the production site of materials & 3 \\  & & A.3.1—Contractor certification & 1 \\  & & according to UNI EN ISO 14001 & \\  & A.3—Environmental requirements & A.3.2—Producer certification & \\  & & according to UNI EN ISO 14001 & \\  & & A.3.3—Recyclability of materials at end-of-life & 2 \\ \hline \multirow{3}{*}{D—Construction and demolition phase} & D.1—Safety & D.1.1—Contractor certification & 1 \\  & D.2—Constructive solutions and site management & D.2.2—Demolition plan and CDW management & 10 \\ \hline E—Maintenance & E.1—Building maintenance & E.1.1—Maintainability and durability of construction materials & 7 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Scheme of criteria and sub-criteria for the bid evaluation process. The following paragraphs describe the sub-criterion D.2.2 (Table 3) and the related scoring system. Sub-criterion D.2.2 is related to CDW management and is aligned with the LEED \"Material and Resource (MR) Credit: Construction and Demolition Waste Management\". The intent of the LEED requirement is the reduction of \"construction and demolition waste disposed of in landfills and incineration facilities through waste prevention and by reusing, recovering, and recycling materials, and conserving resources for future generations.\", and specifically, the considered MR Credit aims \"to divert at least 50% of the total construction and demolition materials from landfills and incineration facilities.\" [89]. Sub-criterion D.2.2 divides waste that the company expects to produce by:  
* Re-usable waste on site, identifying the expected methods and, when necessary, the treatments to make waste reusable;
* Recyclable waste, identifying the related methods of separation of different types of waste on site;
* Landfilled waste, divided for hazardous and non-hazardous waste, including the disposal methods and, when necessary, treatments to be landfilled. * Specifically, the following data shall be defined for each waste material (Table 5):
* EWC codes;
* Description of construction activities producing the waste materials;
* Total amount of m-th non-hazardous waste material \(Q^{i}_{Rif,\ m}\) and of p-th hazardous waste material \(Q^{i}_{Rif,p}\) (unit of measurement: kg);
* Percentage of non-hazardous waste material to be reused on site \({}^{\forall i}_{Ruin,\ m}\);
* Percentage of non-hazardous waste material, excluding excavated soil, to be recycled \({}^{\forall o^{j}_{Ruin,\ m}}\);
* Percentage of non-hazardous waste material, excluding excavated soil, to be landfilled \({}^{\forall o^{j}_{Sma,\ m}}\);
* Percentage of hazardous waste material as defined by Directive 2008/98/CE to be landfilled \({}^{\forall o^{j}_{Sma,\ p}}\).