LIGHT RAIL
network – a group in action
Sustainable development
Lines 3 and 4 (19.2 km and 8.2 km) were built concurrently, with Line 4 re-using most of the existing infrastructure (Lines 1, 2, and part of Line 3). The different urban landscapes through which the trams run also provided an opportunity to create landscaped environments appropriate for the districts through which they pass. More than 1,300 trees and 40,000 shrubs have been planted along the route of Lines 3 and 4. This massive construction project (the largest in the metropolitan area) encouraged the reintegration of unemployed people by implementing an active employment policy through clauses in the works contracts. The outcome is clear proof of the drive demonstrated by the Metropolitan Authority: some 165,000 hours worked by 250 people over 26 months (equivalent to 42 full-time jobs/month on average).
In terms of long term professional integration, almost 12% of the hours worked involved people who were looking to move back into employment. Finally, 80 people were able to continue their experience within the companies involved, after the work was completed, by signing long-term contracts. Sustainable development
also involves a coherent policy, which has to be structured to encompass all associated projects, in particular the future designated development zones and the major ‘Ecocité’ centre in the south of the metropolitan area.
Teamwork
The imaginative approach demonstrated in terms of transport and collaborative working allowed the work involving connections to the existing lines to be carried out in record
Coordinating the work with all those involved in the various tasks was the key to its success, given that it spanned almost 20km, of which 12km was in the city centre, not to mention the two major civil engineering structures that were installed during the work (one across the Mosson river and the other over SNCF railway lines).
Egis coordinated the implementation of 35 sets of switches and crossings and a large number of associated tasks (utility diversions, platforms, trackwork, road surfacing and overhead power lines).
The task was a real challenge for Egis and the consortia, who successfully rose to the challenge of connecting the existing lines between 5 July 2010 and 24 August 2010, over 36 days – instead of the five months that had been initially allocated.
time, resulting from Egis’s practical expertise being used to limit the impact on the lines, which continued in operation (around 300 people and 10 different trades were involved).
The project has been a great success for the inhabitants of the Greater Montpellier metropolitan area, as a result of the productive collaboration between the engineers, the construction companies and manufacturers, and the operator.
Cont. overleaf > rail technology magazine Aug/Sep 12 | 129
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