€86.610 +0.19 %
Reinventing project management
Mirail university: a major collaborative worksite
The metamorphosis of the Mirail campusThe Mirail university campus in Toulouse was designed in the 1960s. This iconic site is now undergoing a profound metamorphosis, entrusted in large part to the VINCI group together with the Cardete-Huet architecture firm. VINCI Construction France and VINCI Facilities (VINCI Energies) signed a €416 million public-private partnership agreement covering the reconstruction and rehabilitation of a large number of buildings on the campus.
VINCI Construction France is in charge of demolition, design, construction and restructuring of three of the five units on the campus, i.e. 60,000 m² of new premises, including seven lecture halls. The works also include the construction of a canopy with a surface area of over 7,000 m², 200 student housing units, 120 housing units for young workers, 1,100 parking spaces and sports facilities and for 90,000 m² of outdoor landscaping.
The company has made energy and environmental performance commitments specifically designed to recover more than 92% of the 55,000 tonnes of deconstruction materials. The works are to be carried out in 36 months in three phases starting in March 2013, without interrupting the university operations. In addition, all the units built will be modular and true to the original structure.
VINCI Facilities will be responsible for operation, maintenance, major upkeep and major renovation, as well as cleaning services for an average term of 27 years.
- 36 months of work;
- Recovery of more than 92% of the 55,000 tonnes of deconstruction materials;
- 94,000 m2 renovated or rebuilt;
- A 130,000 m2 complex, larger than the existing facilities (109,557 m2);
- Public-private partnership agreement: a €202 million government subsidy covering campus reconstruction and a more or less equivalent budget covering major upkeep and maintenance for 27 years.
Experimenting with new working methodsThe reconstruction of the Mirail campus, now renamed Jean Jaurès, is a particularly complex operation carried out in stages. The building programme was implemented in three instalments and had to be carried out without interrupting the activity of a campus serving 26,000 students. The removal, temporary housing, demolition and deconstruction operations had to be planned for each phase. To carry out the project properly, the three partners within the Mirail project joint venture – VINCI Construction France, VINCI Facilities and their financial partner DIF – developed a collaborative approach.
A renovation designed jointly with university staff
A university is a site like no other. To prepare project specifications respecting the identity of the campus and meeting the needs of users, VINCI joined forces with the philosopher Michel Serres to set up a group of university staff members responsible for working with the architects to design the changes. Béatrice Salviat, a certified biology teacher, and Michel Authier, a philosophical mathematician and the inventor of the Tree of knowledge, are members of this group.
« Campus operations must continue uninterrupted. »
« We are making a major effort to ensure safety – not only the safety of students and professors around the different worksites and that of our colleagues, but also that of our teams of subcontractors. We have asked the latter to sign a contractual quality and safety agreement setting out the fundamental principles that must be applied to ensure that all participants achieve the same set of requirements, and we are attentive to compliance. VINCI Construction France has thus sent a strong message to all those involved in the reconstruction of Toulouse-Jean-Jaurès University, which involves a variety of sensitive issues.. Due to the presence of 26,000 students, noise and the dust emission levels are checked every day. We discovered that the faculty and administrative staff members who were working at the university during the explosion of the AZF site in 2001 were apprehensive about vibration and noise generated by the works. We took steps to mitigate the problem. In addition, activity on campus was to continue uninterrupted. This required well-orchestrated work scheduling and faultless management of temporary housing. During the initial project phase, we held daily meetings with university management. We have now built a good working relationship based on trust. »
A worksite in collaborative modeThe companies involved in the project adopted a collaborative working method from the design phase onward, with real benefits.
For example, an innovative flooring procedure, perfected at the VINCI training centre in Agen, was used at the project: this doubled the pace of floor construction compared to a traditional procedure.
Another example is the work done by the VINCI Construction France and VINCI Energies teams to optimise the energy efficiency of the new university. Together, they developed a 7,000 m2 canopy to protect outdoor pathways from rain and strong wind and to optimise lighting in winter and shade in summer. The collaborative approach also made it possible to address future site maintenance issues very early on. To facilitate cleaning and effective upkeep of the facility, the VINCI Facilities teams asked for the canopy to be equipped with accessible utility connections and water points.
A Blue Fabric projectIn Toulouse, VINCI implemented its Blue Fabric approach, which is based on its vision of a humanist and sustainable urban fabric creating value for all, and brings the experience of a responsible builder to the project to serve urban development.
The campus was entirely demolished and rebuilt on a larger scale. The post-free structure will facilitate retrofits. True to an initial modular design, the project relies on innovative solutions such as maximum use of thermal inertia. This solution gives the project positive energy building features. The project reinterprets the design of the initial structure, creates a relationship with nature and includes protected walkways for pedestrians and meeting points.
Public lighting: a source of energy savings
An energy and economic performance challenge for local governmentsToday all contracts covering public lighting designed by Citeos, a subsidiary of VINCI Energies, include energy performance goals. Citeos signs public-private partnership agreements with municipalities to help them meet the challenges of reducing energy consumption, against a backdrop of increased budgetary constraints and environmental concerns.
In France, the number of light points increased by 35% over a 10 year period to nearly 9.5 million.
Source: French Lighting Association
The virtuous circle of the public-private partnershipPublic-private partnerships (PPP) are an effective way to enable local governments to renew their public lighting equipment. This often outdated equipment wastes considerable amounts of energy. Within the framework of a PPP, the local government and the contracting company make a commitment to reduce energy consumption, which is included in the contract. During the first phase of the PPP, the company makes the bulk of the investments in the renovation of the network by replacing obsolete equipment with latest-generation material (LED lights, lighting variation according to time, intelligent management systems, etc.). This generates substantial energy savings, which largely offset the initial investment over the term of the contract. This in turn reduces public spending. The company holding the contract, which borrows to finance the renovation work, then repays the loan from compensation paid for energy savings.
Cergy-Pontoise, lighted cityCiteos, which for 18 years has managed the lighting system in Cergy-Pontoise, has made a commitment to reduce that city’s energy consumption by 35% between now and 2018. This target will be achieved by renovating the lighting system and installing 7,000 LED lights. LED lights, which use less energy than traditional lights, can be managed very precisely via instantaneous variations in intensity.
“Over the initial years of a PPP, we bear the cost of renewing more than 40% of the equipment, which is perhaps 3% per year out of the total French stock”, Xavier Albouy, director the Citeos brand (VINCI Energies)
In Cergy-Pontoise, Citeos installed presence detection sensors at 500 light points located on pedestrian paths.