What is a Road Safety Audit?

A Road Safety Audit is an evaluation of a highway improvement scheme during design, at the end of construction and post-construction, to identify road safety problems and to suggest measures to eliminate or mitigate any concerns. Road Safety Audits are undertaken by teams of specialists trained in the skills of collision investigation and/or road safety engineering.

All strategic road schemes and the majority of new works are required to have an independent Road Safety Audit. Road Safety Audits aim to identify potential road safety hazards arising from planned changes to the road layout but they are not technical checks against design standards or traffic regulations.

In carrying out Road Safety Audits, the Audit team should consider road safety issues for all road users and will ask two key questions of the scheme

  • Who could be hurt in a collision on this part of the road and how could that happen?
  • What can be done to reduce the potential for that collision or to limit its consequences?

Road Safety Audits

Safety Audits are conducted in accordance with HD19/15 of the Design Manual for Roads and Bridges (Road Safety Audit)

Road Safety Audits go through four key phases and are as follows:-

Sometimes the Safety Audits can be combined; most often if the works are smaller in nature, or time scales are tight a Stage 1 & 2 Road Safety Audit maybe carried out together.

Some highway improvement schemes may not require Stage 4 Road Safety Audits unless the relevant authority request further collision monitoring/investigation.

The Road Safety Audit team members may be from the same company undertaking the Highway Improvement scheme design but have to be independent of any scheme design or process.

Road Safety Audits may be undertaken on highway schemes covering:

  • Major and minor highway improvements
  • Traffic management and calming schemes
  • Pedestrian and cycling schemes
  • Roundabout junctions
  • New or amended traffic signal junctions
  • Priority junctions
  • Motorway improvement

Non-Motorised User Audits

Government policy encourages consideration of the needs of non-motorised users and supports efforts to increase safety and accessibility by non-motorised modes.

The non-motorised user audit is defined as: A systematic process applied to Highway Schemes, by which the Design Team identifies scheme objectives for non-motorised users, documents the design decisions affecting non-motorised users, and reviews designs and construction to assess how well objectives have been achieved.

Non-motorised users are considered to be pedestrians, cyclists and equestrians. Non-motorised user audits require particular consideration to be given to the needs of disabled people, who may use any of these modes or other equipment such as wheelchairs.

Require Assistance with a Road Safety Audit?

Sanderson Associates have extensive experience in providing Road Safety Audits for a wide variety of major and minor developments throughout the whole of the UK, Isle of Man and Ireland.

One of our Road Safety Auditors holds the Road Safety Audit, Highways England Approved Certificate of Competency, we are therefore able to carry out Road Safety Audits on the Trunk Road Network that comply with the detailed requirements of the Design Manual for Roads and Bridges HD 19/15.

We would be pleased to provide you with our competitive fee proposal to provide you with our Road Safety Audit Services, please call us on 01924 844080 or click here to complete our secure online form.


What our Clients' say:

Transport Statement, Proposed Residential Development, 6 Detached Dwellings

Wed 23 November 2016

Mr Greenwood is a highway wizard and worked his magic on the Hardingham scheme, without Sandersons input I am confident this scheme would have not passed… Henry Isotta-Day – Architectural Design Engineer, Clayland Architects

Flood Risk Assessment, Proposed Residential Development, Cobham, Surrey

Fri 28 October 2016

We were very pleased with the service received and the positive outcome for our client, and would not hesitate to recommend for flood risk assessments. Thanks very much for helping us with this project. Malcolm Jenkins, Architect, Malcom Jenkins Associates

Technical Letter in Support of Residential Development

Thu 28 July 2016

Recently worked with Robert in order to turn round a planning application which was being recommended for refusal due to Highways objections at the eleventh hour. On this one we had to really think out of the box quickly to mitigate the concerns. Robert was instrumental in coming up with options and innovative ideas and […]

Stage 3 Road Safety Audit

Mon 25 July 2016

The service provided was professional direct to the point and alternatives were provided on discussion of the reports requirements, a user friendly service in every way to a legacy job with very little background information. Thank you Steven Johnston – Keepmoat Regeneration Ltd

Flood Risk Assessment, Proposed Residential Development.

Fri 8 July 2016

Thank you for your assistance on the Flood Risk assessment in relation to our works being carried out at the house. I would like to add that I only called yesterday seeking advice on a flood risk assessment not knowing what it entails and you have acted extremely quickly. You listened and gave valuable, honest […]

Highways Advice, Proposed Residential Development, Micklepage Paddock

Wed 29 June 2016

I would just like to reiterate my thanks, together with those of my clients, for all the work that you did in assisting to obtain planning permission for the above project. Highways had always indicated that being able to provide adequate sight lines onto the main road would be a major factor in determining this […]

Advice on Site Drainage

Wed 22 June 2016

We consulted Sanderson Associates with regard to a surface water drainage design issue that we had recently. They were prompt in their response to us and were able to cut right through to the heart of the problem and provide advice that was direct and uncomplicated. The information provided satisfied the requirements of the local […]

Highway Advice – Testimonial

Mon 9 May 2016

Bob came to the island as an, ‘expert witness’, in a Planning Appeal, for a sizeable property build, essentially covering the Highway issues. After meeting Bob the day before the Appeal, it was abundantly clear this chap, ‘knew his stuff’. His consummate professionalism, experience and knowledge came though at the Hearing, contributing to the process […]

Transport Report in Opposition to Proposed Large Scale Housing

Tue 5 April 2016

We commissioned a Transport Report from Sanderson’s in opposition to a proposed large scale housing development near us. Ian Ladbrooke provided professional expertise in identifying the transport issues and the flaws in the developer’s transport assessment. His input proved invaluable and ultimately the application was refused on transport grounds. The report was delivered on time […]

Swept Path Analysis, Proposed Extension to Industrial Development

Mon 7 December 2015

As an independent property developer I was asked for a swept path analysis to aid my planning application. I googled and found Sanderson Associates, never had I heard of them before. I have to say from the start they were extremely professional and very prompt. I asked for many amendments on my analysis at the […]

Road Safety Audit, Road Safety Problems, RSA Stage 1 Road Safety Audit, Stage 2 Road Safety Audit, Stage 3 Road Safety Audit Stage 4 Road Safety Audit, Non Motorised User Audit