The Geneva International Airport has decided to modernize its facilities with a major enlargement of its “East Wing” to improve passenger comfort.

This project includes a 500 m long metal building of with high environmental quality with two levels and is coupled with a new “processor” building dedicated to the control of incoming and outgoing passengers.

The whole piece consists of an exo metal structure covering a service road and a 20,000 m² public space.

The overall energy mix is balanced thanks to the mobilization of geothermal probes, some equipment with low energy consumption and a photovoltaic power generation of about 1,600 MWh / year.

In this context, the route of the access road to the terminal from France (customs road) will be amended and this road partially buried.

The consortium including Rogers Stirck Harbour et Partners / Atelier J. Bugna / Ingérop Conseil et Ingénierie (in association with consulting engineers from Geneva including T-Ingénierie) were awarded the contract further to an international tender.

Execution of « Proyeto constructivo » for the Barcelona’s tramway line Trambesos (14 Km long in urban zone, 29 stations, 7 sub-stations and one 12500m² wide workshop/depot).

Specificities:

• Important contribution in offer for Tramvia Metropolita Consortium (Alstom, FCC, NECSO, COMSA, CONNEX, SARBUS, SOLER, SAURET): design, construction, operation.
• Proyecto constructivo (Preliminary Design, Detailed Design, Execution) for construction companies FCC, COMSA, NECSO.

Fields : City Planning, Platform, Tracks, Catenary System, Workshop and Depot.

Ingérop South Africa (ISA) was appointed by Department of Water Affairs (DWA), to attend to the project for the raising of the Hazelmere Dam in KwaZulu-Natal.

The Raising of the Hazelmere Dam consists of the Design, Manufacture and Installation of Crest Gates and associated infrastructure. The project includes civil works to ensure the overall stability of the dam wall and provision for emergency overflow in case the gates do not open on time.

Nairobi Metropolis (capital of Kenya, 4 million inhabitants, 8 predicted in 2045) experiences a rapid growth while suffering from heavy traffic jams and from a low-structured public transport supply.

To solve these issues, a BRT (Bus Rapid Transit) Network has been planned since 2014 by the Government of the Republic of Kenya.

The study focused on the lines 3 (27km) and 4 west (7km).

It included, during the first phase (2015-2016) an opportunity & feasibility study and during the second phase (2016-2019) a detailed design for a high-priority route of 12.5km: BRT Core Line 3.

Characteristics:

• High-capacity BRT concept (16 000 pphpd): operation with high frequency (1bus/45 seconds) and multi-docking bays platforms, overtaking lanes, traffic management at intersections with elevated structures at major crossings.
• 2 vehicles standard options considered: high-floor (~90cm) and low-floor (~35cm).

Description of actual services provided by INGEROP staff within the assignment:

The assignment covered the following scope of tasks:

• Ground survey campaigns: topographic surveys, aerial geo-photography, geotechnical surveys, road deflection surveys.
• Traffic surveys: origin/destination surveys from interviews, traffic counting, directional traffic counting at intersections…
• Transport demand forecast (2023, 2035, 2045)
• Urban integration and technical studies: infrastructure, tunnels, bridges, drainage system and strategy
• Stations study with an architectural concept (3 options) and associated equipment (sliding doors, fare collection and control lines, ticketing systems and intelligent transport system equipment for passengers’ information and operation monitoring)
• BRT Operation studies and transport services design (all-stops and express services)
• Dynamic simulation for the BRT operation and pedestrian flows in stations (VISSIM)
• Rolling stock study (vehicles transport capacity and propulsion options)
• Assessment of Investment cost and Operation & Maintenance costs; Economic and Financial evaluation
• Environmental and social impact assessment (ESIA)
• Implementation plan (contracts framework and implementation schedule)

Brief description

As part of the major projects launched by the city of Dakar in recent years to improve public transport, the construction of a BRT line, an express train line and the restructuring of the public transport network are planned.

In this context, CETUD (the organising authority under the Ministry of Transport) has delegated to Ageroute (Senegal’s road management agency) the project management for the complete construction of this BRT line, which will be used by 250,000 passengers per day by 2050.

Characteristics of the project:

• 18 km long
• 23 closed stations (high platforms ~95cm)
• 1 depot workshop
• 3 interchange hubs (terminus + central station)
• 2 Works of Art
• Passenger information system + ticketing + centralized technical management (centralized command post at the depot)
• Facade to facade” layouts: bus lanes, accompanying roads, pavements, cycle paths, etc.

Assignment

Complete works supervision assignment (construction supervision – Design check – Assistance for acceptance operations)

Ingerop ensures the operational management of the assignment (on-site head of mission) and the management of the main markets through the on-site presence of experts in infrastructure, systems (Passenger information system, Ticketing, CTM), and building.

Design of tunnel built by mining construction method

The cross-border section of the Lyon-Turino railway line is a new railway line of about 67 km linking Saint Jean de Maurienne in France to Suze in Italy and Bussoleno where it connects to the historic Turino-Modane line. In particular, the line requires the excavation of a 57.5 km single-track twin-tube tunnel known as the “Montcenis base tunnel”.

On the French side, the civil engineering of the base tunnel is divided into 3 operational worksites.

The construction management of the 08-operating site, led by a consortium formed by Egis tunnels (leader)/ Ingérop/Alpina/Géodata, includes the construction of the following works:

• The construction of a site platform at Villard Clément at the head of the future French side
• Preparatory construction for access to the future tunnel head (high-level temporary lining, mass earthworks, special ground reinforcement work),
• Excavation and lining of the two tubes of the base tunnel and the linking galleries over about 3 km,
• The construction of a cut-and-cover tunnel about 140 m long at the connection between the entrance to the base tunnel and the cut-and-cover tunnel under the A43 motorway already constructed as part of another construction package,
• The construction of the networks and water drainage system at the tunnel exit, the backfilling and definitive site installations

Characteristics

• Multiple interfaces work with the existing (buildings, infrastructures, networks) and other construction sites of the project (construction civil engineering sites, processing of excavated materials)
• Carrying out additional geotechnical and topographical studies, ICPE (Classified facilities for Environmental protection) files

Assistance to the project owner for the LSE (Water Law) and CNPN (National Council for the Protection of Nature) files.

The Chilterns Tunnel is a 15.8km bored tunnel. There will be four vent shafts and one intervention shaft located along the proposed line of route – Chalfont St Peter, Chalfont St Giles, Amersham, Little Missenden and Chesham Road. Its southern portal is located near Maple Cross. Its site will also house a compound during construction with all material from the bored tunnel coming here to be treated prior to being used elsewhere along the line of route. The northern portal is adjacent to South Heath.

Rendel/Ingerop are responsible for developing and delivering the Scheme Design of the Civil Works in Stage 1 followed by the Detailed Design in Stage 2, for the Design-and-Build contractor, ALIGN. Align is comprised of the three Civil Contractors in Joint Venture (Bouygues Travaux Publics, Sir Robert McAlpine, Volkerstevin).

The services provided include design of the Colne Valley viaduct and other structural elements (e.g. abutments); design of associated approach embankments; geotechnical modelling, ground risk assessments and earthworks; soil-structure interaction analysis for piled foundations and earth-retaining structures; geological interpretation of GI data; development of ground models; highway designs for road diversions, realignments, new junctions, new access roads to compounds and transformer sites, highway scope definition, pavements, emergency hard standings, road drainage and vehicle swept path analysis;  track alignments; production of 2D drawings and 3D BIM models of the designs to meet the ultimate client’s BIM and data management requirements; Environmental assessments; hydraulic modelling for river realignments / diversions; acoustic modelling for the design of Noise Barriers.

Rendel services included Management Support Consultancy (MSC), advising the BBA in any activities requiring government actions or permissions, where they have programme implications and the following management functions:

• Project management including coordination, reporting, monitoring of progress and plans,
• Budgetary and financial management
• Review of Quality Control and Quality Assurance Plan
• Reviewing payment certificates if required
• Contractual advice and settlement of disputes
• Implementation of the Social Safeguard Plans (environment, resettlement, )
• Design and management of Monitoring and Evaluation(M&E) programme for socio-economic aspects designed to minimise noise, and noise barriers were

Ingerop was the team leader for all tramway-related works : infrastructures, associated urban works, roads, bridges, rolling stock, energy, operating system and equipments, depot and maintenance center…

The EPC contracted has led to a single general contractor contract, in charge of all facilities, construction, rolling stock supply, equipments…