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Engineering

London Road Safety Unit

Road safety audit

LRSU engineering teams also carry out road safety audits. The audit process ensures that any changes to the road layout are safety audited to identify anything that might pose a risk for road users.

LRSU carries out safety audits on engineering schemes that are to be implemented on the TLRN.

They also offer a safety audit service to London boroughs for local schemes and to consultants for private developer schemes.

A bus lane

The main stages of the safety audit process are shown opposite. The following document details the procedure for carrying out road safety audits.

Road Safety Audit procedure document (PDF, 1.1MB)

Stage 1

A Stage 1 safety audit is carried out when preliminary design work has been carried out. This will usually involve a site visit.

Stage 2

A Stage 2 safety audit is carried out when detailed design of a scheme has been carried out. This audit looks at elements like junction layout, road markings, signage and lighting. A Stage 2 audit will also review any issues brought up in the Stage 1 audit. For some minor schemes Stage 1 and Stage 2 audits are combined.

Stage 3

A Stage 3 audit takes place once a scheme has been constructed. This should ideally take place within one month of construction. At this stage both daytime and night time audits are carried out. The night time audit identifies any issues that might occur during darkness.

Stage 4a

Stage 4a is carried out 12 months after the scheme has been implemented. This audit looks at any issues that may have arisen since completion.

Stage 4b

A Stage 4b audit is completed 36 months after implementation. This is part of the monitoring of the scheme.