Stage Two Road Safety Audit Checklist

Completion of Detailed Design

The Road Safety Audit Team should satisfy itself that all issues raised at Stage 1 have been resolved. Items may require further consideration where significant design changes have occurred.

If a Highway Improvement Scheme has not been subject to a Stage 1 Audit, the items listed in Lists A1 to A5 (Stage 1 Road Safety Checklist) should be considered together with the items listed below.

List B1 – General


Possible Issues

Departures from

Consider road safety aspects of any Departures granted since the Stage 1 Road Safety Audit.


Do drainage facilities (e.g. gully spacing, gully locations, flat spots, crossfall, ditches) appear to be adequate?

Do features such as gullies obstruct cycle routes, footpaths or equestrian routes or are they located on NMU desire lines?

Do the locations of features such as manhole covers give concern for motorcycle/cyclist stability?

Is surface water likely to drain across the carriageway and increase the risk of aquaplaning under storm conditions?

Climatic Conditions

Is there a need for specific provision to mitigate effects of fog, wind, sun glare, snow, and icing?


Could planting (new or when mature) encroach onto carriageway or obscure signs or sight lines (including during windy conditions)?

Could earth bunds obscure signs or visibility?

Could trees (new or when mature) be a hazard to an errant vehicle?

Could planting affect lighting or shed leaves on to the carriageway?


Can maintenance vehicles stop clear of traffic lanes? If so, could they obscure signs or sight lines?

Are boxes, pillars, posts and cabinets located in safe positions away from locations that may have a high potential of errant vehicle strikes? Do they interfere with visibility?

Has sufficient clearance of overhead cables been provided?

Have any special accesses/parking areas been provided and are they safe?

Are there any utility inspection chambers in live traffic lanes and/or wheel tracks?


Have lay-bys been positioned safely?

Could parked vehicles obscure sight lines?

Are lay-bys adequately signed?

Are picnic areas properly segregated from vehicular traffic?


Is the visibility to/from access adequate?

Are the accesses of adequate length to ensure all vehicles clear the main carriageway?

Do all accesses appear safe for their intended use?

Skid Resistance

Are there locations where a high skid resistance surfacing (such as on approaches to junctions and crossings) would be beneficial?

Do surface changes occur at locations where they could adversely affect motorcycle stability?

Is the colour of any high friction surfacing appropriate?


Have the needs of agricultural vehicles and plant been taken into consideration (e.g. room to stop between carriageway and gate, facilities for turning on dual carriageways)? Are such facilities safe to use and are they adequately signed?

Fences and Road
Restraint Systems

Is there a need for road restraint systems to protect road users from signs, gantries, parapets, abutments, steep embankments or water hazards?

Do the road restraint systems provided give adequate protection?

Are the road restraint systems long enough?

Are specific restraint facilities required for motorcyclists?

In the case of wooden post and rail boundary fences, are the rails placed on the non-traffic side of the posts?

If there are roads on both sides of the fence is an interlocking-design necessary to prevent impalement on impact?

and Roads

Has screening been provided to avoid headlamp glare between opposing carriageways, or any distraction to road users?

Are there any safety issues relating to the provision of environmental barriers or screens?


List B2 – Local Alignment


Possible Issues


Obstruction of sight lines by:

(i) safety fences
(ii) boundary fences
(iii) street furniture
(iv) parking facilities
(v) signs
(vi) landscaping
(vii) structures
(viii) environmental barriers
(ix) crests
(x) features such as buildings, plant or materials outside the highway boundary

Is the forward visibility of at-grade crossings sufficient to ensure they are conspicuous?

New/Existing Road

Where a new road scheme joins an existing road, or where an on-line improvement is to be constructed, will the transition give rise to potential hazards?

Where road environment changes (e.g. urban to rural, restricted to unrestricted) is the transition made obvious by appropriate signing and carriageway markings?


List B3 – Junctions


Possible Issues


Are the junctions and accesses adequate for all vehicular movements?

Are there any unusual features, which may have an adverse effect on road safety?

Have guard rails/safety fences been provided where appropriate?

Do any roadside features (e.g. guard rails, safety fences, traffic bollard signs and traffic signals) intrude into drivers’ line of sight?

Are splitter islands and bollards required on minor arms to assist pedestrians or formalise road users' movements to/from the junction?

Are parking or stopping zones for buses, taxis and public utilities vehicles situated within the junction area? Are they located outside visibility splays?


Are the sight lines adequate at and through the junctions and from minor roads?

Are visibility splays clear of obstruction?


Is the junction signing adequate, consistent with adjacent signing and easily understood?

Have the appropriate warning signs been provided?

Are signs appropriately located and of the appropriate size for approach speeds?

Are sign posts passively safe or protected by safety barriers where appropriate?

Are traffic signs illuminated where required?

Are traffic signs located in positions that minimise potential strike risk?

Is the mounting height of sign faces appropriate?

Are traffic signs orientated correctly to ensure correct visibility and reflectivity?

Road Markings

Do the carriageway markings clearly define routes and priorities?

Are the dimensions of the road markings appropriate for the speed limit/design speed of the road?

Have old road markings and road studs been adequately removed?

T, X, Y

Have ghost island right turn lanes and refuges been provided where required?

Do junctions have adequate stacking space for turning movements?

Can staggered crossroads accommodate all vehicle types and movements?


Are the deflection angles of approach roads adequate for the likely approach speed?

Are splitter islands necessary?

Is visibility on approach adequate to ensure drivers can perceive the correct path through the junction?

Where chevron signs are required, have they been correctly sited?

Are dedicated approach lanes required? If provided, will the road markings and signs be clear to all users?


Are the approach speeds for each arm likely to be appropriate for a mini roundabout?

Is the mini roundabout appropriate for the likely traffic volumes?

Is the centre island visible from all approaches?

Traffic Signals

Will speed discrimination equipment be required?

Is the advance signing adequate?

Are signals clearly visible in relation to the likely approach speeds?

Is “see through” likely to be a problem?

Would lantern filters assist?

Is the visibility of signals likely to be affected by sunrise/sunset?
Would high intensity signals and/or backing boards improve visibility?

Would high-level signal units be of value?

Is the stopline in the correct location?

Are any pedestrian crossings excessively long?

Are the proposed tactile paving layouts correct?

Are the markings for right turning vehicles adequate?

Is there a need for box junction markings?

Is the phasing appropriate?

Will pedestrian/cyclist phases be needed?

Does the number of exit lanes equal the number of approach lanes? If not is the taper length adequate?

Is the required junction intervisibility provided?


List B4 – Non Motorised User Provision


Possible Issues


Are accesses to and from adjacent land/properties safe to use?

Has adjacent land been suitably fenced?


Are facilities required for Non Motorised Users (NMUs) at:
(a) junctions
(b) pelican/zebra crossings
(c) refuges
(d) other locations?

Are crossing facilities placed and designed to attract maximum use?

Are guardrails/fencing present/required to deter pedestrians from crossing the road at unsafe locations?

Is tactile paving and flush kerbs proposed? Is it specified correctly and in the best location?

For each type of crossing (bridges, subways, at grade) have the following been fully considered?
(a) visibility both by and of pedestrians
(b) use by cyclists
(c) use by mobility and visually impaired
(d) use by older users
(e) use by children/schools
(f) need for guardrails in verges/central reserve
(g) signs
(h) width and gradient
(i) surfacing
(j) provision of dropped kerbs
(k) avoidance of channels and gullies
(l) need for deterrent kerbing
(m) need for lighting


Have the needs of cyclists been considered especially at junctions and roundabouts?

Are cycle lanes or segregated cycle tracks required?

Does the signing make clear the intended use of such facilities?

Are cycle crossings adequately signed?

Do guardrails need to be provided to increase cyclists awareness of potential hazards such as a road crossing?

Has lighting been provided on cycle routes?

Are any proposed dropped kerbs flush with the adjacent highway?

Are any parapet heights sufficient?

Is tactile paving proposed? Is it specified correctly and in the best location?


Should bridleways or shared facilities be provided?

Does the signing make clear the intended use of such paths and is sufficient local signing provided to attract users?

Have suitable parapets/rails been provided where necessary?


List B5 – Road Signs, Carriageway Markings and Lighting


Possible Issues

Traffic Signs

Do destinations shown accord with signing policy?

Are signs easy to understand?

Are sign structures passively safe?

Are the signs located behind safety fencing and out of the way of pedestrians and cyclists?

Is there a need for overhead signs?

Where overhead signs are necessary is there sufficient headroom to enable designated NMU usage?

Is the sign reflectivity provided correct?

Has sign clutter been considered?


Are the legends relevant and easily understood?

Are signs located behind safety fencing?

Are the signs passively safe or located behind safety fencing?


Has lighting been considered at new junctions and where adjoining existing roads?

Is there a need for lighting, including lighting of signs and bollards?

Are lighting columns passively safe?

Are lighting columns located in the best positions e.g. behind safety fences and not obstructing NMU routes?


Are road markings appropriate to location?
(a) Centre lines
(b) Edge lines
(c) Hatching
(d) Road studs
(e) Text/Destinations
(f) Approved and/or conform to the Regulations

Poles and

Are poles and columns passively safe?

Are poles and columns protected by safety fencing where appropriate?


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 GG119 (formerly HD19/15) of the Design Manual for Roads and Bridges Volume 5 Section 2.

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.

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