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Construction and Routing Project M-40
Extending the M-40


10 km long

9 junctions

160,000 vehicles per day

  • Construction and Routing Project M-40
  • Construction and Routing Project M-40
  • Construction and Routing Project M-40
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Ineco has worked in the alignment and corrective measures in the M-40 highway section 

The M-40 highway has one of the densest traffic flows in Spain. It is a full ring road of approximately 62 km that circles Madrid. It currently consists of two carriageways with 3 or 4 lanes in each direction with junctions connecting to the trunk roads and only isolated sections of local distribution Roads.

In order to respond to a traffic density of around 160,000 vehicles per day and to meet the demand of road users, Ineco has drawn up the routing project and corrective measures for the section between the Arcentales junction and the Avenida de Andalucía junction.

Data Sheet
Location: Spain
Client: Ministry of Public Works
Execution period: 2009-2012
Market: Roads

More capacity, enhanced safety and with environmental criteria

The project was approached as a challenge to reconcile two fundamental objectives: on the one hand to increase the capacity of the road while upgrading the safety measures through the design of the trunk road and junctions with the highway, and on the other to design the corrective environmental measures necessary in a road infrastructure of an essentially urban nature.

The Ineco engineering team carried out an analysis of traffic distribution along the route of the M-40 which in turn enabled a design with sufficient trunk, collector and distribution road capacity to meet the required needs. The team also performed analysis, redesign and detailed engineering on a total of nine junctions.

As a result of its strong commitment to environmental sustainability, Ineco carried out an analysis of options for reducing acoustic pollution along the entire route by the placement of acoustic protection screens and phono-absorbent barriers. An inventory of trees was also performed to identify those affected by the works and propose solutions for their transplanting and/or replacement.

Lastly, specific landscaping measures were proposed to minimise the visual impact on the surrounding area of doubling the total road surface through implementation of collection and distribution carriageways.