Our collision analysis supports GG119 Road Safety Audits, highway improvement schemes, planning applications and post-collision investigations throughout the UK.
Road collisions are rarely the result of a single factor — they emerge from a complex interaction of human behaviour, road layout, traffic conditions and environmental influences. At David A Graham Associates, we specialise in uncovering these underlying causes through detailed, data driven collision investigation and road safety engineering.
Our work supports Local Authorities, consultants and developers who need reliable, defensible analysis to inform safety schemes, planning decisions and long term casualty reduction strategies.
Our collision investigation service combines specialist engineering knowledge with robust analytical methods. Every study is built on high quality evidence, including:
This combined approach ensures that every conclusion we draw is grounded in verifiable evidence and professional engineering judgement.
Our background in public sector road safety engineering means we understand the pressures Local Authorities face — limited time, limited resources, and increasing expectations for measurable casualty reduction.
David A Graham Associates offers:
Our engineers have decades of experience delivering site specific collision studies, route based assessments and area wide safety reviews in both urban and rural environments.
A David A Graham Associates collision investigation report may include:
Each report is designed to support decision making, funding bids and scheme development.
For more than 20 years, David A Graham Associates has delivered collision and traffic studies across the UK and internationally. Here’s just a selection of our commissions over the years:
UK
International
Our work has helped clients implement schemes that reduce collisions, improve network performance and support long term safety strategies.
Whether you require collision investigation to support a planning application, Road Safety Audit, highway improvement scheme or expert witness instruction, David A Graham Associates provides independent, evidence-based analysis trusted by Local Authorities, consultants and developers throughout the UK and internationally.