public works 23 a9 exemplary management of a complex project widening of the a9 valérian and malet drew on their full range of expertise for this huge project involving the addition of an extra lane on both sides of the current two-lane motorway section between perpignan and le boulou after just under three years of work the widening of a9 section 2 into 3 lanes was completed in late april 2016 two months ahead of schedule the job of adding a third lane on both sides of this 14 km stretch of motorway was not an easy one in order to widen the road on both sides of the carriageway central reservation and hard shoulder the valérian teams had to perform a multidisciplinary operation civil engineering road surfacing excavation drainage safety facilities in a severely confined space another challenge not the least was to keep two narrowed lanes open to traffic from mid september to mid-june besides meticulous planning of the works to avoid disruption to traffic additional safety measures were required for entry exit and all traffic movements necessitating conditions of extreme vigilance throughout the work site valérian even went the extra mile by allowing the operator to temporarily open up three lanes in both directions to absorb summer traffic in 2015 while the work was suspended this project was a perfect illustration of valérian's consummate management of complex processes enabling continuity of operation and therefore guaranteeing complete customer satisfaction widening to 2x3 lanes 14 km of roadworks 450,000 m 2 of excavation 220,000 tons of surfacing 32,000 ml of drainage systems collectors drains and guttering 13 basins grand paris focus on materials the issue is seldom raised during discussions but is nonetheless true nearly 10 of the estimated costs of the grand paris project involve questions of materials valérian is providing an offer engineering service and a fullyfledged materials strategy for these major projects particularly with regard to the metro line extension tunnels its offer is bolstered by project engineering and civil engineering synergies with spie batignolles tpci
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