
Highways Engineering & Infrastructure Design
At mode transport planning, we design infrastructure that unlocks development potential and ensures long-term success. From new access arrangements and junction upgrades to detailed highway schemes, our engineers combine technical expertise with commercial awareness to deliver safe, efficient, and cost-effective solutions. With integrity and initiative at the core of everything we do, we create designs that gain approvals smoothly and stand the test of time.
Bespoke Highway Design & Engineering
Every site presents unique challenges. That’s why our team provides bespoke designs from concept sketches through to detailed S278 and S38 engineering drawings. We focus on delivering practical solutions that are not only compliant and adoptable but also tailored to the specific requirements of each development. Backed by our values of growth, passion, and fun, we turn complex engineering into clear, value-driven outcomes.
Feasibility Studies & Site Engineering Appraisal
Comprehensive early-stage assessment of site conditions, access opportunities, and engineering constraints. We identify potential risks and technical challenges, advise on deliverable highway solutions, and outline the most practical and cost-effective transport and infrastructure strategy to support your planning application and long-term development objectives.
Design & Agreement of Site Layouts
Development and refinement of detailed site access and internal layout designs, ensuring compliance with national and local design standards. Early engagement with highway authorities to secure agreement on geometry, visibility, servicing, and circulation arrangements.
Stage 1 Road Safety Audit & Designers Response
Coordination and management of independent road safety review at preliminary design stage and incorporating recommendations to safeguard all road users to secure highway concept and layout approvals.
Planning Design Approval
Preparation and submission of highways and transport infrastructure designs to support planning approval, ensuring proposals are technically robust, policy-compliant, and aligned with highway authority expectations.
Draft General Arrangements
Production of clear and accurate General Arrangement drawings, defining the scope, layout, and specification of proposed highway and infrastructure works for technical review and approval.
Full Design Packs
Preparation of comprehensive engineering drawing packages, specifications, and schedules compiled to be submitted for technical approval submission to support.
Stage 2 Road Safety Audit & Designers Response
Independent safety audit at the detailed design stage, with comprehensive Designer’s Responses ensuring that all safety recommendations are reviewed, addressed, and incorporated prior to construction.
Submission and Liaison with Relevant Authorities
Management of technical submissions and ongoing coordination with local highways, drainage, and planning authorities to secure timely approvals and agreement of design proposals.
Assistance with Utilities
Engagement with utility providers to design, programme, and coordinate service diversions or connections, minimising risks of delay or conflict with highways and infrastructure works.
Tendering /Bill of Quantities
Compilation of approved technical drawings, tender documentation and bills of quantities, to support accurate contractor tendering and ensure transparent procurement, robust pricing, and contractor comparability.
S278/S38 Legal Agreements
Provide technical assistance to the client’s legal team in their preparation of legal documentation and financial bonds to safeguard client obligations in the negotiation and submission of adoption agreements for highways, and associated works, achieving formal sign-off and ensuring long-term maintainability.
Technical Design Approval
Securing formal approval of detailed highways and drainage designs from relevant authorities, ensuring compliance with current technical standards and policies, and enabling works to commence.
Highway Licenses and Traffic Management
Design and approval of safe, practical, and efficient temporary traffic management measures to maintain movement, minimise disruption, and protect all road users during construction prior to securing and managing all necessary highway licences, permits, and approvals for works on or adjacent to the public highway, ensuring statutory compliance during construction.
On-site Supervision
Provision of experienced on-site supervision to monitor construction activity, ensuring works are delivered safely, to approved designs, and in accordance with technical standards.
Stage 3 Road Safety Audit & Designers Response
Post-construction independent safety audit, with detailed Designer’s Responses to confirm issues are addressed and the completed scheme operates safely and effectively.
Remedial Works and Bond Retrieval
Oversight of snagging and remedial works, ensuring compliance with authority requirements, and securing the release of adoption bonds once obligations have been fulfilled.
Highway & Infrastructure
Design Success Stories
Our work speaks volumes. Explore our case studies to see how mode transport planning has helped developers, contractors, and local authorities bring infrastructure schemes to life. From unlocking land with new access strategies to delivering fully engineered highways networks, we make sure every project is designed for long-term success.

Nationwide Reach, Expert Local Knowledge
With offices in Birmingham, Manchester, and London, we offer nationwide coverage combined with local expertise. This allows us to deliver tailored highway engineering and infrastructure design solutions for projects of all sizes and complexities throughout the country.

Sectors We’ve Worked In
With expertise in transport planning, highway design, drainage engineering and flood risk management, our teams deliver tailored solutions across a wide range of industries. Each project is approached individually, ensuring effective and value-driven outcomes that are unique to any given property development.
Residential
We support most residential projects, from small developments through to some of the largest masterplans in the UK, we work with land promoters, developers, national house builders and housing associations to meet transport, infrastructure, and flood risk challenges.
Logistics
We work with many of the most prominent logistics providers, designing transport and access solutions for warehouses, distribution centres, last mile delivery hubs ensuring operational efficiency for businesses in the logistics sector.
Healthcare
We assist healthcare facilities, including hospitals and medical centres, with transport planning and infrastructure requirement, ensuring accessibility for all users, suitable parking assessment and strategies and operational efficiency for NHS trusts, healthcare providers as well as local authorities.
Education
We help schools, colleges, and universities develop safe, sustainable access solutions and infrastructure, supporting educational institutions in meeting the transport needs of students, staff, and visitors as well as assessing sites for potential surface water flooding issues.
Retail
We collaborate with retail developers and operators to address transport and engineering requirements for retail parks, shopping centres, and mixed-use developments, ensuring smooth operations that are focused on their customer ease of use and satisfaction.
Leisure
We support leisure facilities, from gyms to major attractions, in planning transport and infrastructure requirements as well as assessment of peak visitor numbers, helping leisure providers create accessible and relaxing environments.
Commercial
We partner with commercial developers to provide transport and highway infrastructure solutions for new office spaces and mixed-use developments, ensuring accessibility and growth for businesses in the commercial sector.
Frequently Asked Questions
Our highway and infrastructure design consultants are here to answer any questions you may have, from early-stage feasibility through to detailed design and post-planning support.
What is highway design and why is it important for my development?
Highway design ensures that new access roads, junctions, and supporting infrastructure are safe, efficient, and adoptable by local authorities. For developers, it’s a critical part of gaining planning permission and ensuring schemes can be built without costly redesigns. At mode transport planning, our engineers combine technical expertise with commercial insight to deliver designs that unlock land and support long-term growth.
When should I involve highway designers in my project?
The earlier the better. Bringing us in at feasibility stage means we can assess access opportunities, identify constraints, and develop concepts that align with both planning policy and engineering standards. Early involvement reduces risks, speeds up approvals, and makes sure design solutions are commercially viable from the outset.
What types of highway design services do you offer?
We cover the full spectrum, from simple site access arrangements through to detailed S38, S104, and S278 infrastructure designs. This includes junction upgrades, internal site layouts, visibility splays, and the integration of sustainable transport measures such as cycleways and pedestrian routes. Whatever your project needs, we provide clear, buildable solutions.
How does highway design link to the NPPF?
The NPPF requires developments to achieve safe and suitable access for all users. Highway design is how this is demonstrated in practice. By ensuring schemes are safe, efficient, and connected, we help satisfy both NPPF requirements and local authority adoption standards, reducing the risk of planning refusal.
What standards and guidance do you follow in your designs?
We work to national standards such as the Design Manual for Roads and Bridges (DMRB), Manual for Streets, and Local Transport Notes, as well as each local authority’s specific requirements. Our experience across the UK means we know how to meet technical expectations while still delivering practical, cost-effective solutions.


Speak to An Expert
Looking for support with your next project? Get in touch with our experienced consultants for a free, no-obligation conversation.