Infrastructure Design
Infrastructure Design Services | Access Roads, Earthworks & Construction Compounds | Arthian
Infrastructure design that makes projects buildable, safe and sustainable
At Arthian, infrastructure design is about more than drawings—it’s about making projects genuinely buildable, safe to operate, and aligned with your commercial and sustainability goals. We work across the full lifecycle of enabling works and permanent infrastructure, integrating geometric design, drainage, utilities, earthworks and construction logistics into one coordinated picture.
Whether you’re planning a new development, upgrading an existing site, or delivering a complex industrial or energy project, our engineers design infrastructure that works on the ground, not just on paper.
Access road & track design
Well‑designed access roads and tracks are critical for safe, efficient movement of people, plant and materials. The result? Access routes that are safe, compliant, and tailored to the realities of your site and vehicle fleet. Our services include:
- Safe geometry and visibility:
We design horizontal and vertical alignments to current standards, with appropriate sight lines, crossfalls and superelevation for the vehicles using the route. - Vehicle swept path analysis:
Using turning templates and swept path analysis, we ensure HGVs, abnormal loads, emergency vehicles and site plant can manoeuvre without conflict or unsafe reversing. - Temporary and permanent access:
From construction haul roads and crane access tracks to permanent estate roads, we balance durability, cost, maintenance and environmental impact. - Drainage and edge protection:
Integrated drainage, verge and barrier design reduces surface water risks and protects pedestrians, assets and habitats.
Pavement & hardstanding design
Pavements and hardstandings carry the operational load of your site—literally. At Arthian, our team designs robust pavements and hardstandings that stand up to real-world loading and weather, not just design assumptions. Our service includes:
- Load‑appropriate pavement design:
We design flexible, rigid and composite pavements based on traffic loading, axle weights, ground conditions and performance requirements. - Heavy‑duty hardstandings:
Design for HGV yards, loading bays, laydown areas, crane pads and parking, with attention to rutting, settlement and long‑term durability. - Materials and specification:
Optimised layer build‑ups, material selection and specification to balance cost, constructability, maintenance and carbon. - Surface water management:
Integration of falls, permeable surfaces, slot drains and gullies to manage runoff and reduce flood risk.
Earthworks design
Earthworks are often the biggest cost and risk driver in early‑stage infrastructure. At Arthian, our team creates earthworks strategies that are safe, economical and aligned with planning, environmental and carbon objectives. Services include:
- Cut‑and‑fill optimisation:
We model earthworks to minimise export/import, reduce haul distances and support cost and carbon reduction. - Slope stability and retaining structures:
Design of embankments, cuttings, bunds and retaining solutions with appropriate factors of safety and constructability. - Platform and formation levels:
Creation of level platforms for buildings, compounds, roads and laydown areas, coordinated with drainage and utilities. - Ground improvement and remediation:
Where needed, we integrate ground improvement, soil stabilisation or remediation strategies into the earthworks design.
Site layout and grading design
A well‑graded site layout underpins safe operations, efficient logistics and effective drainage. At Arthian, our team designs site layouts that feel intuitive to use, are easy to maintain, and manage water and levels effectively. Services include:
- Functional site planning:
We plan circulation routes, parking, loading, laydown, welfare and security to support safe, efficient operations. - 3D grading and level design:
Detailed grading plans that manage falls, avoid ponding, and coordinate with building thresholds, ramps and accessibility requirements. - Integrated drainage and utilities:
Layouts that consider drainage networks, utility corridors, easements and future expansion. - Construction phasing and access:
Designs that work both for the construction phase and the final operational layout, reducing rework and temporary works complexity.
Bellmouths & junctions
Bellmouths and junctions are critical interfaces with the public highway and internal networks. At Arthian, we design junctions that are safe, approvable by highway authorities, and practical for the vehicles you use. Services include:
- Highway‑compliant design:
Design of bellmouths, junctions and tie‑ins to local highway authority standards, with appropriate radii, tapers and lane arrangements. - Visibility and safety:
Assessment of visibility splays, pedestrian crossings, signage and road markings to support safe entry and exit. - Swept path and abnormal loads:
Junction geometry tested for HGVs, low‑loaders and abnormal loads, reducing the need for traffic management or temporary modifications. - Drainage and kerb design:
Integration of kerbs, gullies and crossfalls to manage runoff and protect the highway asset.
Construction compounds
Construction compounds are the heartbeat of a project during delivery. They support productivity, safety and compliance from day one to demobilisation. Our services include:
- Compound layout planning:
Design of welfare, offices, storage, plant parking, material laydown and waste areas to support efficient site operations. - Access, security and segregation:
Safe segregation of vehicles and pedestrians, secure boundaries, and controlled access points. - Temporary utilities and drainage:
Planning for power, water, foul and surface water management, including temporary drainage and treatment where required. - Phasing and demobilisation:
Compounds designed with clear phasing, expansion and demobilisation strategies to minimise disruption and reinstatement costs.
Integrated, multidisciplinary thinking:
Infrastructure design coordinated with structures, buildings, utilities, environmental and sustainability requirements.
Buildability and logistics focus:
Designs that reflect how projects are actually built and operated, not just theoretical standards.
Carbon and cost awareness:
Earthworks, pavements and layouts optimised for both commercial performance and carbon reduction.
Clear, actionable deliverables:
Drawings, models and reports that contractors, clients and regulators can all understand and use.
Ready to talk about your infrastructure design?
If you’re planning access roads, compounds, earthworks or site infrastructure for a new or existing project, Arthian can support from concept through detailed design and construction. Get in touch with one of our engineering experts today.