Experts in Highway Design and 3D modelling

3D modelling

Are you struggling to get a 3D model produced for your designs? Do you only have 2D drawings and wish you had a 3D model?

Cassidy Forsythe are experts in the 3D modelling of highway schemes to the BIM protocols. We can provide a 3D model of your design or we can design your scheme for you to DMRB standards, or your adopted standards. We have extensive experience in the design of highway schemes, including feasibility studies, preliminary and detailed design, contract preparation and construction supervision.

We can create 3D models for you which comply with the BIM principles. These models will show all 3D elements, such as pavement layers and street furniture, allowing quantities to be extracted directly from the model and 4D schedule simulation to be carried out. The models created will capture the design intent and will facilitate clash detection. The models will also feature elements which are capable of being attributed with information for asset management purposes, which is a key requirement of BIM level 3.

The services we can offer range from the provision of preliminary design advice, through to the detailed design process and preparation of construction drawings. We can also prepare your construction documents, carry out the tender processes (including tender appraisal), project management, site supervision and the preparation of as-built drawings. The design process is always carried out in close consultation with the local Highway Authority to ensure that the designs are compliant with current design standards, to the satisfaction of the appropriate body. We always provide a Vehicle Swept Path Analysis of our designs to ensure that the vehicles intending to use the site will be able to comfortably access the new development.

Since July 2014 we have provided services to Tata Steel Projects, Aecom, Capita, Amey and Balfour Beatty.

Mentoring services were provided to Aecom, who had already started using Openroads. However, they were not using the software to its full potential. We mentored their staff in setting up their projects and their systems so that all of their staff were working to the same standards and were making the best use of the software.

Services provided for Capita included providing 3D modelling of new junctions and roundabouts in the North Tyneside area.

Amey used Cassidy Forsythe to provide the services of an NEC3 Project Manager for a bridge demolition and replacement scheme in Biggleswade. These services included agreeing compensation events, monitoring the programme and processing monthly valuations.

Work currently being carried out for Balfour Beatty includes creating 3d models of the client’s highway and bridge design, re-design of various portions of the client’s design to improve buildability and creation of earthworks models to allow for improvements in the earthworks balance.

We can provide the same service for you – call for an initial conversation.


We can provide training for you if you want to be able to create 3D models yourself. Recently, we have provided training for Balfour Beatty at their offices in Canary Wharf. This was a small group of 8 Engineers keen to improve their capabilities. Training included demonstrating how to navigate Microstation and how to import cells from Sketchup into a model. Also demonstrated was alignment design and earthworks modelling in MX Openroads. We showed the Balfour Beatty people how to manipulate Bentley Navigator and carry out clash detection on models received from their designers.    

Telephone: 0191 640 7339



Please note: this is a commercial profile


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