
Transportation Engineering
making every journey safer - for everyone, every day
We design smart, safe and reliable transport solutions—working closely with communities, clients and partners to make every journey better.
We offer:
Traffic Impact Assessments
Permanent & Temporary Traffic Solutions
Public Transport Infrastructure Improvements
Speed Limit Changes & Assessments
Intersection Design
Management, Surveillance and Quality Assurance
Road / Parking and Access Layout Reviews
Road & Vulnerable Safety User
Concepts InvestigationSafe System Audits
Our Projects:
Coatesville Riverhead Roundabout: Safety Meets Smart Design
Carrying over 15,000 vehicles a day and ranked as Auckland’s 5th most dangerous intersection, the junction of Dairy Flat and Coatesville Riverhead Highways was crying out for a safer solution.
Blue Barn was engaged by Auckland Transport to deliver the detailed design of a 27-metre diameter roundabout — improving safety, reducing conflict points, and making the intersection far more user-friendly for rural drivers.
With seven retaining walls and tight site constraints, the final design required precision geometric design to meet safety and performance standards. The result? A safer, smarter intersection — designed to save lives.
Burundi x Roscommon: Safer Streets, Smarter Design
Blue Barn played a key role in transforming the busy Burundi Avenue and Roscommon Road intersection into a safer, signalised crossing — delivering detailed design and construction support alongside Auckland Transport’s MSQA team.
The project focused on improving safety for both pedestrians and drivers, especially for those turning into and out of Burundi Avenue. The new layout and signalised controls have created a smoother, more predictable intersection — making a big difference for the local community.
Smart infrastructure, safer outcomes — that’s what we’re here for.
Avoca x Advene: A Smart Solution for a Growing Community
To keep pace with rising traffic volumes and improve safety, a new urban roundabout was the clear choice for the Avoca/Advene intersection.
Using Civil 3D, our team modelled and tested multiple scenarios to fine-tune the design — ensuring it would perform seamlessly in real-world conditions. The final result? A well-integrated, future-ready roundabout that reduces congestion, improves traffic flow, and makes the intersection safer for everyone who uses it.
Smart tools, thoughtful design, better journeys.