Roads and pavements
Alignment studies, longitudinal and cross profiles, design of new or strengthened pavement structures, traffic analysis, material selection and drainage provisions.
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Infrastructure division
Transport infrastructure & utilities
TOPDEC supports road, airport, urban and industrial projects from initial assessment through detailed design and construction supervision. Our approach combines geometry, pavements, ground conditions, drainage, utilities and structures to deliver coherent, buildable solutions.
Our services
Comprehensive infrastructure engineering
Services are tailored to the project stage, available data and the client’s technical requirements.
Airfield pavements
Studies for runways, taxiways and aprons: assessment, bearing capacity, design, rehabilitation and phasing under operational constraints.
Utilities and urban infrastructure
Roads, grading, sewerage, stormwater, utilities, accessibility and interface coordination for developments, industrial sites and public spaces.
Geotechnics and earthworks
Interpretation of ground investigations and definition of earthworks, platforms, slopes, treatments and material reuse conditions.
Civil structures
Preliminary studies and design of standard structures, retaining walls, culverts, hydraulic works, and reinforced-concrete or steel structures.
Construction support
Drawings and tender documents, bills of quantities, estimates, review of execution studies, compliance checks, technical monitoring and handover support.
From requirements to construction
Our services and deliverables
Available services
- Feasibility studies and development options
- Pavement condition assessment and testing
- Concept, preliminary, detailed and execution design
- Tender documentation
- Design review, checking and technical coordination
- Construction monitoring and handover support
Deliverables
- Technical reports and design calculations
- Location plans, alignments and profiles
- Earthworks, drainage and utility drawings
- Typical sections and construction details
- Take-offs, bills of quantities and estimates
- As-built documentation as required
Our method
A controlled four-step process
Scoping
Review of objectives, existing data, site, operational and programme constraints.
Assessment
Assessment of the site, soils, traffic, utilities and defects to establish reliable assumptions.
Design
Option comparison, engineering design and multidisciplinary coordination through detailed drawings.
Support
Technical responses, design review, monitoring of adaptations and inspection of completed works.
Applications
Infrastructure designed for its purpose
Roads and streetsAirportsLogistics platformsIndustrial sitesDevelopmentsUrban developmentsHydraulic structures
A road, airport or utility project?
Tell us about the site, project stage and key constraints. We will propose an appropriate scope of study.