1. Context

Public works companies, generally organized on a decentralized basis (head holding company, regional divisions, subsidiaries, agencies, worksites), see worksites as their products. They sell them, then carry them out, unlike industry, which produces before selling. In France, several thousand public works projects can be carried out by a single company every year. Peugeot, Renault make cars... public works companies produce worksites. At the same time, these worksites are...