Reporting cycle

The Sustainability Report is published annually, under the instruction of the Board of Directors of Salini Impregilo S.p.A..

Adherence to best practice standards

The Salini Impregilo 2015 Sustainability Report has been prepared in line with the “Comprehensive” option of the “GRI G4 Sustainability Reporting Guidelines” and the “Construction and Real Estate Sector Disclosures”, issued by the Global Reporting Initiative (GRI) in 2013 and early 2014 respectively. By applying the Comprehensive option, we have opted to disclose all indicators relating to our 12 material topics.

In addition, the Report contains references to the ten principles of the Global Compact, showing the actions and systems implemented by the Group in order to integrate these principles into the corporate strategy and day-to-day activities of the company.

Material topics

In order to implement the Reporting Principles for Defining Report Content provided for by the GRI G4 Guidelines, the Group has defined an internal procedure aimed at identifying, prioritising, validating, and reviewing material topics, as described at section 7.1. Material topics identified through this process with related boundaries are listed below. A complete list of significant sites where topics are material is available hereinafter.

Third-party assurance

To verify the information provided in the Report, and to improve our reporting processes, we engaged Reconta Ernst & Young S.p.A. to audit the activities and results reported. The independent assurance report is available at the end of this document.

Scope of the Report

The 2015 Sustainability Report contains an overview of the initiatives and activities carried out by the Group in 2015, as well as performance data from the period 2013–2015 and important developments in early 2016.

The information provided in the Report refers to Salini Impregilo S.p.A. and its subsidiary companies.

Unless otherwise specified in the Report and/or in the GRI Content Index, the scope of the report follows the criteria described below:

  • Financial data (except for the figures on local purchases) and workforce data relates to the scope of the 2015 Salini Impregilo S.p.A. Consolidated Financial Statements;
  • Corporate governance data and information relates to Salini Impregilo S.p.A.;
  • Environmental and social data (excluding workforce and including local purchases) refers to a scope of significant sites (listed below) established applying the following two criteria:
    • The “Control approach” criterion, through which we identify all the active projects with one of the following characteristics:
      • direct contract;
      • contract managed by a consortium/joint venture/temporary partnership in which Salini Impregilo is the leading partner;
    • The “Significance” criterion, through which we determine which of the projects identified via the above criterion have been involved in significant production activities during the reporting period, in terms of revenues and man-hours worked.

The sites excluded from the scope are therefore considered not relevant to this report.

Any specific limitations to the scope are directly indicated in the Report, particularly in the GRI Content Index.

The injury figures in this report refer to a scope wider than that used for the Group Quality, Environment, Health and Safety management system, which applies to contracts where decision-making roles (e.g. Head of QSE) are entrusted to Salini Impregilo.

Below is a list of operating sites included under the reporting scope of the Sustainability Report. For more information about these projects, visit our website

Calculation methods

Data and information included in the Report are taken from the information systems used for the general management and reporting of the Group’s operations, along with data from a specific sustainability reporting system established in accordance with GRI requirements. Some data and information is drawn from public sources.

Reported data is calculated with due accuracy and, where specified, by means of estimates. The methodologies applied to determine the main indicators are shown below.

Safety indicators

Safety indicators are calculated in accordance with the “ILO Code of Practice on Recording and Notification of Occupational Accidents and Diseases” provided in the GRI Guidelines.

Rates reported are expressed as the number of injuries (IR) and the related lost days (LDR) for every 100 employees.

In particular, the IR is calculated as a rate that takes account of the total number of injuries within the period with a predicted recovery time of more than three days (including fatalities) and the total hours worked, multiplied by 200,000. The LDR is calculated as a rate that takes account of the total number of lost calendar days (relating to injuries with a predicted recovery time of more than three days) and the total hours worked, multiplied by 200,000.

Both the IR and LDR rates relate to the total workforce, comprising both direct and subcontractors’ employees.

Although injuries incurred while commuting are not included in the calculation of the safety indicators, any accidents occurring to independent contractors (e.g. consultants) are included in injury rates. Injuries sustained at operating sites by service providers’ personnel (e.g. at the canteen), or at the company headquarters and other offices are not considered as material, as they do not relate to construction activities. For this reason, any such injuries are not included in the safety indicators. 

HSE expenses

The Health, Safety and the Environment expenses reported refer to:

  • Health and Safety protection expenses include personal protective equipment, safety installations (e.g. fire-fighting equipment, grounding), emergency response equipment and services (e.g. rescue team, rescue equipment, ambulances, first aid, etc.), H&S monitoring activities (e.g. laboratories, instruments, measurements, etc.) and healthcare expenses (e.g. running of clinics, medical staff, medicines);
  • Environmental protection expenses include environmental plants (e.g. wastewater treatment plants), environmental emergency equipment (e.g. spills kit, absorbent materials, anti-spill-over systems, etc.) and services (e.g. those provided by third parties through framework agreements), waste management, environmental restoration and remediation, monitoring activities (e.g. laboratories, instruments, measurements, etc.);
  • H&S and Environmental management costs include internal personnel dedicated to running HSE management systems, external consultancy and training costs.

Energy consumption

Calculations on internal and external (i.e. sub-contractors’) consumption of direct energy are based on conversion factors provided by the Intergovernmental Panel on Climate Change (2006 IPCC Guidelines for National Greenhouse Gas Inventories).

Water withdrawal, discharge, and reuse

Water not withdrawn from aqueducts, bought from other sources (i.e. via tanks), or measured by a meter (including those discharged and reused), is estimated in terms of the working hours of the draining pumps used and the capacity of these pumps.

Wastewater is estimated as a percentage of total water withdrawn, depending on the use of the water (production or domestic).

Rainwater, although collected and stored, is not reported because it is not considered material. The Group does not use wastewater from other organisations.

Greenhouse gas emissions

Calculation of the Group’s greenhouse gas emissions is based on:

  • The emission factors provided by the Intergovernmental Panel on Climate Change (2006 IPCC Guidelines for National Greenhouse Gas Inventories) for the consumption of direct energy;
  • The emission factors provided by the International Energy Agency (CO2 Emissions from Fuel Combustion, 2013 edition, 2011 data) for the consumption of indirect energy;
  • The emission factors provided by IPCC (Fourth Assessment Report AR4 100yr) to convert CH4 and N2O into CO2 equivalent;
  • The emission factors provided by the UK Department for Environment, Food and Rural Affairs (2011 Guidelines to Defra/DECC's GHG Conversion Factors for Company Reporting) for the shipment of goods.


Data on waste production is gathered in line with the Construction Waste Measurement Protocol issued by ENCORD (European Network of Construction Companies for Research and Development) in May 2013.

For operations within the EU, disposal methods have been determined according to the classification provided by law of each waste category. For those outside the EU, methods have been determined according to the specific contracts stipulated with external waste contractors.

For more information

To discover more about our approach to sustainability or to suggest how we can improve our sustainability reporting, please email: