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TRINITRAIN, a train for Trinidad & Tobago  The Context The Republic of Trinity-and-Tobago, a Caribbean State in the Antilles Sea off the coast of Venezuela, is part of the Commonwealth. Trinity-and-Tobago comprises of two islands which are 32 km apart from Trinidad and Tobago. The capital is Port-of-Spain. With railways having disappeared from Trinidad (1 Million inhabitants) in the 1960s and increasing road traffic congestion due to commuter trips to Port-of-Spain, the local government called for tenders for a DBOM (Design-Build, Operate & Maintain) contract for the construction and operation of a new railway network dedicated to passenger traffic to serve the most densely populated zones and the bigger cities, located in two corridors running north/south and east/west. After being awarded the contract, the TRINITRAIN Consortium composed of Bouygues TP, RATP and Alstom had completed an initial conceptual design work which defined the main elements of the future service to be offered: A new line with a common urban section 20 km long, which splits into two lines measuring 32 km and 45 km respectively, served by 17 stations Use of Alstom 107 m long «Coradia» trains with a capacity of 700 or 1400 seats. Services at minimum intervals of 4 minutes during peak periods and end to end journey times of one hour. The geometrical characteristics of the line allowed a maximum speed of 160 km/h. Content of assignments awarded to INGÉROP Group The Group carried out the Detailed Design of two sections, of railway line, totaling 75 km in length. This assignment included: Layouts and civil engineering designs (excavations, bridges, hydraulics, geotechnical surveys) Roads & mains and building designs Railway equipment designs as well as a specific mission of railway integration, project management. A team from INGÉROP Group has been located at Port-of-Spain, where it collected all technical data and worked in close cooperation with the client. Meanwhile, a back office team in France carried out the main part of the necessary technical studies. Our assignment also included preliminary design studies for the maintenance site, including: Train parking sidings A workshop for the heavy duty maintenance on the rolling stock Administrative buildings for management incorporating a system of traffic and track control and office facilities for the drivers. To achieve this, the Group was entrusted with the task of coordinating all the proceedings and of assuring a functional reconciliation among and between the various points of view and expectations of parties responsible for operations, maintenance and construction. The assignment, part of which was executed offshore and whose completion date had to be within less than a year, has been a particularly motivating challenge for Ingérop railways department. Since then similar missions of integration and coordination are under execution by our railway department. |