viaducto-autopista-transmontana

Highways & Roads

Engineering resilient, efficient and sustainable road infrastructure

More than 8,000 km of highways and roads engineered worldwide

Highways and roads are the backbone of regional and national mobility, enabling the movement of people and goods at scale. At Sener, we deliver comprehensive engineering services for road infrastructure — from feasibility and alignment studies to bridges, tunnels, interchanges, tolling systems and maintenance planning. With decades of experience and thousands of kilometers designed, we create safe, efficient and sustainable corridors that support economic growth and territorial integration.

We have contributed to major highway and roadway projects in Spain, Portugal, Mexico, Colombia, Panama, Chile, Brazil, Qatar, the UAE and the United States, among others. Our work spans new corridors, widening projects, ITS integration and smart toll systems, tailored to each region’s mobility needs.

Why choose us

Our multidisciplinary approach combines civil engineering, geotechnics, structures, hydrology, environment and systems integration. We design resilient corridors that adapt to diverse terrains and traffic intensities while meeting safety, sustainability and lifecycle performance goals.

More than 8,000 km of highways and roads across Europe, the Americas and the Middle East

We design corridors and interchanges that minimize congestion, improve safety and integrate ITS solutions, renewable energy systems and smart monitoring platforms, reducing both operational costs and environmental impact.

How we work

Our methodology spans planning, design, construction supervision and lifecycle support. We apply traffic simulations, safety audits, hydrological modeling and BIM integration to optimize design and anticipate operational performance. Our teams also integrate Intelligent Transport Systems (ITS), tolling, SCADA, energy-efficient lighting and digital twins, ensuring smarter and safer mobility. We work closely with public authorities, concessionaires and contractors to deliver projects that are technically sound, financially viable and socially valuable.

From traffic simulation to long-term maintenance planning

We combine engineering precision with digital innovation, enabling projects that perform from the first day of operation and remain efficient throughout their lifecycle.

International references in highways and roads

Our references include high-capacity corridors, mountain highways, seismic-risk areas and urban interchanges. We have delivered bridges, viaducts, tunnels, tolling systems and ITS integration, always with an emphasis on safety, efficiency and sustainability.

How we support highway and road projects

We cover every stage of road development: traffic demand analysis, environmental studies, alignment design, bridges, viaducts, tunnels, drainage, pavement and safety systems.

Vibration engineering
Controlling vibrations to protect structures and enhance user comfort.
Transport consulting
Advising on transport systems to improve mobility, sustainability, and efficiency.
Transport architecture
Creating transport facilities that combine functionality, safety, and design.
Structural engineering
Engineering structural systems for safety, performance, and architectural integration.
Seismic design
Engineering structures to withstand seismic forces and ensure occupant safety.
Road strategy, planning and finance
Developing strategic road plans with financial and policy alignment.
Road network optimisation
Improving road networks to reduce congestion and enhance mobility.
Road design and engineering
Designing road infrastructure for safety, efficiency, and long-term durability.
Planning policy advice
Advising on planning policies to support sustainable development and compliance.
People movement
Designing mobility systems to ensure safe, efficient, and inclusive transport.
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At Sener, we design and deliver highways and roads that connect regions, drive progress and meet the demands of tomorrow’s smart and sustainable mobility.