The purpose of the preliminary design studies is :
1° Determine the dimensions of the structure and its appearance, using plans, sections and façades;
2° Define the materials used;
3° Enable the project owner to make a final decision on the programme and certain equipment choices based on investment, operating and maintenance costs;
4° To establish the final estimate of the provisional cost of the works, broken down by trades;
5° To enable the fixed remuneration to be set in accordance with the conditions laid down in the public works contract.