They are a mandatory requirement for all trunk road Highway Improvement Schemes in the UK (including motorways).
[2] A key feature of a road safety audit is the use of a team of professionals with varied expertise.
The team members must not be involved in the design or maintenance of the facility being examined, so that they can have an objective point of view.
The lack of formal and robust accreditation of Road Safety Auditors has led to a wide variation in the skills of people practicing: from the highest levels of technical competence, to those with poor knowledge who are able to conduct little more than checks of code compliance.
It is expected that in future years, rigorous examination based systems of accreditation will emerge internationally.