the Road Restraint Risk Assessment Process (RRRAP)

Welcome to the Road Restraint Risk Assessment Process (RRRAP)

RRRAP version number Issue date

Notes

1.

2.

09-Mar-15

3.

Date of visit

4. This worksheet can be used to quickly navigate around the other worksheets within the RRRAP, by clicking on the coloured boxes below

Issue 1.3a 05/12/2011

Designers must download and use a fresh copy of the RRRAP spreadsheet for each Section of each road for which they are determining the

Designers must read TD 19/06 in conjunction with this RRRAP to ensure that mandatory requirements and relevant Guidance contained in the

Vehicle Restraint provision. The data input into the RRRAP and the outcome from it must be retained by the Design Organisation as a record.

during the design are and remain valid and that appropriate Vehicle Restraint Provision is made. TD 19/06 Paragraphs 1.23, 3.17 and 3.111 refer.

I confirm that site visit was undertaken during design (name)

written Standard are complied with or followed as appropriate.

M. ENNALS Date read:I confirm that I have read TD 19/06 (name)

TD 19/06 requires that Designers visit the site during design prior to use of the RRRAP and during construction to ensure that assumptions made

Basic (Common Details)

Hazard Listing

Collation of Data on Hazards

Temporary Hazards

Key to Basic Features

Outline Flowchart

Overview of RRRAP and

interface with HA

Help and Guidance Worksheets

Barrier and Option Costs

Data Input Worksheets

Restraint Summary

Data Output Worksheets

Output Report

User Comments

Basic Features of the RRRAP Spreadsheet and their significance

Significance, and comment

Border around worksheet Marks out the lateral and vertical limit of the Worksheet

Asterisk*

Data items with an asterisk (*) MUST be completed for the programme to run

Cell colouring(Light green) Requires data entry by the Designer

(Light yellow) Requires data entry by the Designer (gives drop down listing)

(Black)Cell blacked out to aid reading, not containing information or requiring data entry

(Grey)Auto fill based on a calculation and or copying information already entered elsewhere

(White) Cell usually contains a heading, a question, or a statement

20.00 (Red) Risk is in Unacceptable region

25.00 (Amber) Risk is in the Tolerable region

35.00 (Green) Risk is in the Broadly acceptable region

Cell protection Note that many cells are write protected, these are generally cells containing formulae or other information that the Designer is not allowed to alter.

Help buttons

"Action" buttonsNote: 1. Action buttons that take the Designer to another part of the worksheet can be 'undone' by clicking on the return button.2. Action buttons that perform a calculation or a macro cannot be undone. Care must therefore be taken to ensure that inputs are complete and checked prior to use of this type of button.

These help menus can be retained on the screen and moved to a convenient place whilst data is input. They are closed by clicking on the x in the top right hand corner of the help menu.

Basic Feature of

Spreadsheet

Question cells where information is required, but in the current version, it is not contributing to the risk / benefit cost calculation, but will provide useful background information. Future (refined) versions may well use this type of information in the calculation process.

'Point of Entry'worksheet

Key to BasicFeatures

OutlineFlowchart

Basic(CommonDetails)

Hazard Listing

Hazards basedon MCHWcategories

OtherHazards

Collation ofData onHazards

These are generallyhazards within theHighway under categoriese.g.

300 Fencing500 Drainage600 Earthworks

1200Signs 1300Lighting columns,etc

Includes verge andhardshoulder / hardstripwidth information

TemporaryHazards

Download copyof RRRAP

from HA site

Open RRRAPspreadsheet

These are generally outsideor may cross the highwaye.g.

Other road, riverRailwayPublic meeting place, etc

Links useful onceBasic (Common

Details) entered, ifcoming back to addinformation /analyse

later

Mainly based onquestion and answerformat - see Guidance

DetailedResults

HazardIdentificationand DetailsWorksheets

HelpWorksheets

Add detailsof Hazards,

type andlocation, etc

Review output from Collation ofData (i.e. initial Risk Assessment)

Modify factors e.g. location aggressiveness form of hazard costs

To: Mitigate risk; Optimise benefit cost; Decide on VRS provision

Output Save output

Complete VRSrequirementsschedule for

Contract Data

Add details ofProject and

section beingassessed

Figure 1-1 Overview of RRRAP and interface with HA site

Key to Colourcoding

Help / informationworksheet

Data entryworksheet

Action / Activity

Results worksheet

Output worksheet

TemporaryHazards data entry

worksheet

Start Here

Recommend savingcopy at this pointprior to Collation

Road Restraint Risk Assessment Process (RRRAP) - Process Overview and Process Flowchart

Worksheet

Basic (Common Details) Hazards Listing

300 Fencing, 500 Drainage,

600 Earthworks, H-S & Verge

Widths, etc Worksheets

OH's worksheets

(OH's = Others Hazards)Collation of Data on Hazards Detailed Results Temporary Hazards

What Worksheet is for

This worksheet records key details about the Project

being designed and reasons why the Vehicle

Restraint Provision is being assessed.

This worksheet is to identify for the Section of the

Project being looked at, whether there are any

hazards of the particular category present.

These worksheets are for inputting

particulars relating to each hazard

in each category present.

These worksheets are for inputting

particulars relating to each hazard where

Others might be affected by an errant

vehicle or by another hazard that is hit by an

errant vehicle.

This worksheet collates all the information entered on the

individual Hazard and Other Hazard worksheets, and puts them

into ascending chainage order on the one worksheet.

The RRRAP also calculates the length of need of VRS in advance

of and beyond each hazard, based on a default N2 Containment

Level and W2 working width. It identifies whether the provision is

'Broadly acceptable', 'Tolerable' or 'Unacceptable' (ref TD 19 Fig 2-

1).

This worksheet is to advise the Designer of the

respective levels of the Risk and the Cost

Benefit ratios of each option. It allows direct

comparison of differing options and enables the

Designer to ascertain the level of risk and cost

benefit accruing from any proposed provision.

To assist the Designer in considering and

documenting the process of determining what

VRS provision, if any, is required to protect

temporary hazards.

Examples of information

req'd

Basic Details e.g.

• Designer and Design Organisation names

• Project Name, PIN No. and Project type

Restraint provision associated with e.g.

• New section of road or upgrading to existing

Details of Section of Road being assessed e.g.

• Road name and number

• Location: junction / marker post / chainage

• Which side of road e.g. n/s verge

Traffic Information e.g.

• AADT

• % large goods vehicles.

A 'Yes' or a 'No' response is required (i.e. 'Yes',

there are hazards of that category present or 'No',

there are not).

Help buttons can be pressed to help identify the

type of hazard that is included under each heading,

e.g.

If a 'Yes' is entered, the programme indicates that

further information is required. The appropriate

worksheet for entering this is accessed by clicking

on the adjacent button, e.g.

Nature of hazard (from a drop

down list).

Start chainage, length and width of

hazard.

Offset of hazard from Psb (point

from which set-back is measured).

Other information relating to the

local alignment and location.

Information required is broadly similar to that

for the hazards in the column adjacent and

to the left of this one, but will include items

that will allow an assessment to be

undertaken of the number of Others that

might be affected.

The worksheet allows the Designer to decide whether, for each

hazard, the safety barrier provision based on default values is

satisfactory or not.

The Designer can decide to investigate further, and can change

one or more of the following parameters and recalculate the risk

level based on the revised choice, e.g.

• Cost of Vehicle Restraint System1;

• Length, width, aggressiveness of hazard2;

• Barrier containment, and or Working Width Class3;

• Offset of hazard from Psb.

Help menus give guidance where appropriate.

1,2,3 - See Notes below

The Designer is required to produce a design

that results in the risk being in the green

'Broadly acceptable' region.

The 'Calculate Risk ' button will automatically

colour code the cells as follows: green denoting

a 'Broadly acceptable' provision and risk level,

amber a 'Tolerable' risk level and red with white

text, an 'Unacceptable' risk level.

1. The Designer is required to split the Project into

Sections. Assessment of nearside verge, offside

verge and central reserve will always be in different

Sections.

1. If the 'To collate data on Hazards press here '

button is pressed, and it is subsequently realised

that the information relating to the Hazards is

incomplete, the requisite information can be added

on the appropriate worksheet(s) and the button re-

pressed. This action will over-write the previous

collated data.

1. The type of information

requested is broadly similar for

each type of hazard.

1. Cost of Option is based on a default value. The Designer is

able to override the default cost if he has better information

available about the whole life costing of particular VRS. The basis

for the revised costings must be documented and justified up by

the Designer.

The factors to be included in the costings are shown on the Barrier

and Option Costings worksheet.

1. Further guidance on Assessing the Risk,

mitigating the Risk and the Benefit / Cost ratio

for Options that involve provision of VRS is

given in TD 19 Chapter 2.

1. The methodology for determining whether

or not temporary safety barrier is to be

provided is different to that for assessing

permanent safety barrier provision. This is

mainly due to the transient nature, variety,

and often complexity of the factors that need

to be considered and their interaction.

2. At least one assessment will need to be carried

out for each Section. Also, the nearside verge,

offside verge and central reserve will need to be

subdivided into further Sections where either AADT,

% Large Goods and or Medium Vehicles, or speed

limit differ significantly along the length.

2. Information on '600 Earthworks', '1100 Kerbs

and Edge of Pavement Details', and 'Hardshoulder

/ hardstrip width & verge width details' are always

required for the full length of the Section, as these

factors are used to calculate key information at

intermediate points.

2. Help menus will assist the

Designer with the format for some

of the information and in

determining e.g. from and to where

measurements are taken.

2. The Designer can assess the effect of changing the size, offset

and the aggressiveness of the hazard (e.g. using passively safe

sign posts rather than standard, or changing a retaining wall

having wide deep profiles to be smooth faced).

2. The Detailed Risk spreadsheet indicates in

tabular form the Estimated Risk to the Vehicle

Occupant, Estimated Risk to Others and,

hence, Estimated Total Risk that arise given

incremental increases in safety barrier length

from zero to 100 m. These figures are colour

coded according to whether the risk levels fall

in the 'Unacceptable' , 'Tolerable', or 'Broadly

acceptable' regions. The estimated Benefit

Cost ratio is also given,

2. The process is on the lines of posing a

series of questions that the Designer should

consider and respond to. Many of these are

issues that historically the Designer (or

Contractor) would have potentially looked at,

but may not have been documented in any

formal or consistent way.

3. Each hazard is automatically

allocated a unique reference

number and assigned an

aggressiveness value based on its

nature.

3. Safety barrier Containment Level and Working Width Class are

initially based on a default of N2 and W2. The Designer can

assess the effect of changing these parameters. Remember, if

considering changing the Working Width Class, to check that the

requirements of the various Figures in TD 19 (e.g. Figures 3-1 and

3-2) are complied with.

3. The Designer is able to re-calculate the

level of risk and cost benefit consequent on

changing one or more of the parameters. The

programme appends the output into the

Detailed Results worksheet enabling direct

comparison of each Option investigated on the

same sheet.


300 Fencing, 500 Drainage,

600 Earthworks, H-S & Verge

Widths, etc Worksheets

OH's worksheets

(OH's = Others Hazards)Collation of Data on Hazards Detailed Results Temporary Hazards

Temporary Hazards

Outputs


300 Fencing, 500 Drainage, 600

Earthworks, H-S & Verge Widths,

etc Worksheets

OH's worksheets

(OH's = Others Hazards)Collation of Data on Hazards Detailed Results Outputs

Notes

The Process

Enter basic details of Project being looked at onto 'Basic (Common Details)' worksheet.

Decide which Section of Project is being assessed and enter appropriate details.

Check all cells requiring input are complete.

Is situation for temporary Hazards to be assessed?

Click on button to go to 'Hazards Listing' worksheet.

Yes

When assessment for VRS completed, come back to this Worksheet and click on 'Go to Q and A Worksheet'.

Click on button to go to 'Hazards Listing' worksheet.

No

If a Hazard of each category is present within Section being assessed, indicate 'Yes' in the 'Yes / No' column, otherwise indicate 'No'.

For each Hazard category, where 'Further Data is Required' is shown, click on the adjacent button that takes you to the appropriate worksheet for data entry.

Click on 'Collate data on Hazards' button.

When all the data relating to all the Hazards of the noted type has been entered, click on 'Return to Hazards Listing' button.

When all the data relating to all the Other Hazards of the noted type has been entered, click on 'Return to Hazards Listing' button.

Enter data as required relating to each of the Hazards present in each Hazard category that is present.

Enter data as required relating to each of the Hazards present in each category that is present.

Review whether safety barrier provision that uses default values is satisfactory or whether further investigation of one or more locations / parameters is warranted.

Is further investigation of proposed VRS provision warranted?

Press 'Copy data to VRS Summary Output' button.

Indicate 'Yes' as response(s) under heading 'Output detailed results?'

Remove / redesign / move the hazard(s), make less aggressive, etc , change the parameters accordingly then press 'Calculate' button.

Indicate 'No' as response(s) under heading 'Output detailed results?'

Yes

No

Is the level of risk in the 'Broadly acceptable' region and ALARP? Is the Cost Benefit ratio acceptable?

Assess Estimated Risk and Benefit Cost of revised provision.

No

Indicate 'No' as response(s) under heading 'Output detailed results?'

Yes

Enter data relating to temporary situation in appropriate cells.

Check that all data entries are complete for all Hazards that are present.

Add details / comments as appropriate. Decide on VRS provision and record on worksheet.

Click 'Copy data to VRS Summary Output'button to save and print copy of output.

Save a copy of the spreadsheet.

Check, and when satisfied with the Assessment and VRS provision, sign off the Assessment.

If another Section to be analysed, download another copy of RRRAP from HA site and

start data entry for new Section.

Compile Specification App 4/1 .

Drainage include?

500

Basic Details

Project Name Bulford Road NOTE

Project Reference (e.g. Naris Number) 61031832

Agent / Designer Company Name Ramboll

Agent's Ref

Contract Type Design and Build

Contract sub-type N/A

Region Pembrokshire

Restraint Provision is associated with

New section of Road No

Widening existing carriageway No

Upgrade / improvement to existing

carriagewayYes

Downgrade existing carriageway No

Replacement of existing restraint No

New restraint on existing road Yes

Temporary works No

Details Relating to Particular Section Covered by AssessmentClass and Standard

Road Classification * All Purpose Road

Road Number A4076

Road name Milford Road

Road sub-type eg. D2 * Single

Road Location eg. Urban Rural

To current geometric standards?

Location From To

Junction Name

Junction No.

Marker Post

Section Label

Chainage of Section (m) * 0 346

Section / Direction being assessed South to North

Nearside or Offside Verge being assessed?* N/S Verge

Does road have near side hardshoulder or

hardstrip? *No

Are Environmental considerations likely to

influence provision?No

Traffic Information

Permanent Speed Limit (mph) * 60

AADT (2-way unless motorway link or slip) * 5687

% Large Vehicles * 4.6

% Medium Vehicles * 11.9

Model accident frequency (Nearside) 0.015

Model accident frequency (Offside) 0.011

Scheme duration *When all fields are complete, click

on button below

Check ListAre all required fields with yellow or green

boxes on this sheet complete?Yes

Date of design / submission 28-Nov-14

Date of TD 19/06 Standard used in

assessment01-Aug-06

Data items highlighted with an asterix (*) MUST be completed for the program to run.

Yes / NoFurther Data

Required

If 'Further Data Required'

click on button below to go

to appropriate worksheet

300 Fencing

500 Drainage Features

600 Earthworks YesFurther Data

Required

1100 Kerbs and Edge of Pavement Details YesFurther Data

Required

1200 Traffic Signs or Signals YesFurther Data

Required

1300 Road Lighting Columns

1500 Motorway Communications (above ground)

1600 Piles and Retaining Walls

1700 1800 Structural Concrete and Steel

400 Parapets

2500 Special Structures

Telegraph poles / Pylons

Trees

Water

Hardshoulder / hardstrip width &Verge width details

YesFurther Data

Required

Railway

Road

Public building, sports or playground, or other place where significant numbers of people congregate

Chemical or fuel installation

Are other hazards present that could potentially be reached by errant vehicle or falling

object that is hit? Hazards up to 100m from the carriageway should be considered.

If all fields in worksheets where Further Data Required have been completed, click on

button below

Are any of these hazards present inside or within X m beyond the Highway Boundary

along the length of carriageway under Consideration? The value of X is 5m where the

road is in cutting deeper than 3m on side under consideration, and 15m in all other

situations

Hazards

ID Number Nature of Hazard

Start

chainage of

hazard

End

chainage of

hazard

Offset of

hazard from

PSb

Is risk without

VRS

acceptable?

What is level of

risk with optimum

length VRS?

Minimum

Length of

Barrier in

advance of

object (m)

Minimum

Length of

Barrier beyond

object (m)

Barrier

Containment

Barrier

working

width class

Barrier

working

width

(m)

Offset of

Barrier

from PSb

Is

parapet/struct

ure to be

placed

contiguously

with barrier?

Parapet

Containment

Output

detailed

results?

Cost of Option

(average per year,

£)

Length of

hazard

Width of

hazard

Aggressivenes

sOther Risk Type

Total Number of

people at risk

Substandard

headroom over

any part paved

carriageway?

Substandar

d

headroom

over Verge

or C/res?

Structure

Carries /

Parapet

protecting

Designed

for

collision

loading?

Width of

adjacent

Hardshould

er or

Hardstrip

Width verge /

Central

Reserve

Overall

width slope

Overall

Height

slope

Multiplicative

factor for runoff

rate

Topography Factor

Other

Consequences

Multiplicative factor

Angle of

hazard to

PSb

(Degrees)

Road Restraint Risk Assessment Process (RRRAP) VRS Summary

RRRAP version

numberVerge assessed N/S Verge

Date of Design/

Submission28/11/2014

Issue dateSection / Direction

assessedSouth to North

Location From To

Road Number Junction Name

Road name Junction No.

Marker Post

Section Label

Milford Road

A4076

Were any of the

results unexpected?

Issue 1.3a

05/12/11

Road Restraint Risk Assessment Process (RRRAP) VRS Summary

RRRAP version

numberVerge assessed N/S Verge

Date of Design/

Submission28/11/2014

Issue dateSection / Direction

assessedSouth to North

Location From To

Road Number Junction Name

Road name Junction No.

Marker Post

Section Label


Start

chainage of

hazard

End chainage

of hazard

Offset of hazard

from PSb

Minimum Length of

Barrier in advance

of object (m)

Minimum

Length of

Barrier

beyond

object (m)

Barrier

Containm

ent

Barrier working

width class

Parapet

Containment

Barrier

working

width (m)

Offset of

Barrier

from PSb

0600.0001 Nominally at Grade 0.00 346.00 2.00 N2 W2 1.201200.0001 Sign on post(s) 50.00 50.22 2.50 N2 W2 1.20

Milford Road

A4076

Were any of the

results unexpected?

Issue 1.3a

05/12/11

Comments

Schedule of Road Restraint Systems (Vehicle and Pedestrian)

This is based on the requirements of Specification Appendix 4/1

Location & Start

Chainage

* (m)

Finish

Chainage (m)Position

on Cross-

Section

+

Type of Road

Restraint System** (Safety barriers, vehicle

parapets, transitions,

terminals, crash cushions,

pedestrian parapets,

pedestrian guardrails)

Set-back (m) Containment Level

** (Safety barriers, vehicle

parapets, transitions)

Performance Class (P) **

Impact Severity

Level (ISL) ** (Safety barriers,

vehicle parapets,

transitions,

terminals, crash

cushions)

Working

Width

Class** (Safety

barriers,

vehicle

parapets,

transitions)

Performance Level and

whether Redirective (R) or

Non-redirective (NR) (Crash

Cushions)

Permanent Lateral

Displacement Zone

(PLDZ) characterisic **

(Terminals)

Permanent Lateral

Displacement Zone Class

(D) (Crash Cushions)

Exit Box Class ** (Terminals) Redirection

Zone Class (Z) (Crash

Cushions)

Other Requirements

/ Comments

**

++

+++

NOTE:

*

**

+

++

+++

Height requirements etc.

Anti-glare screens, etc

[Note to Compiler: Complete the schedule below and include in Appendix 4/1. Incorporate in the schedule all the Road Restraint Systems (i.e. safety barriers, terminals, transitions, vehicle parapets, crash cushions, pedestrian parapets and

pedestrian guardrails) and any associated anti-glare screens required. Cross-reference should be made to the Drawings where appropriate. The Road Restraint Systems should be listed in order of occurrence, irrespective of type, and the

respective start and end chainages of the proposed systems listed. All the Performance Class requirements appropriate for the Road Restraint System and other details such as parapet height should be included. The difference between the End

and Start Chainages should be at least the Length of Need of the Road Restraint System as defined in TD 19.

Restraint Summary

e.g. Road name, verge, central reserve, slip road etc.

Enter temporary safety barrier where required.

e.g. LH verge; central reserve, RH hand verge etc.

Risk Assessment Process and Recommendations for Temporary Safety Barrier Situations

Project:

Without

disproportionate time

and cost relative to

rest of works?

Safely within

available

space?

Acceptable

disruption to

motorists?

Works

access /

egress ?

Emergency

Access

requirements

Yes / No

Yes / No

Brief details (or

reference to where these

can be found).Yes / No

Ave No.

man hours

/ day

Max No of

workersYes / No

Yes / No Yes / No

Yes /

No

If no, Set-

back

achievable

Yes /

No

If no, Lane

widths

achievable

Yes /

No

If no, Safety

Zone

achievable

Yes / No Yes / NoYes /

No

Max

Working

Width

Class

Yes / No

1 Will there be temporary or

permanent bridge supports or other vulnerable structures which

have a low resistance to impact and where the consequences of such an impact may be severe?

2 Will traffic run adjacent to

scaffolding or temporary access works where workers or non-motorised road users would be

unable to take evasive action?

3 Will works to overhead power cables be undertaken and Skycradles and deployed within

or adjacent to the Highway Boundary?

4 Will there be other temporary hazards that could result in a high

risk of injury to travelling public if they run into the work zone (such as excavations more than 300

mm deep adjacent to the traffic lane)?

5 Will existing VRS be removed temporarily leaving a hazard

unprotected?

6 Will contraflow be used?

7 Will the work zone be adjacent to a carriageway open to traffic?

8 Other situation posing temporary

hazard to road users?


hazard to workers?


hazard to Others?

List below details for second and

subsequent instances of above where these are expected

Can other measures be adopted to

mitigate risk to Vehicle Occupants /

Others to an Acceptable level and so

avoid using VRS?

During worksRef

Risk level

due to

Hazard

(no temp

VRS)

Likely

exposure

duration

(days)

Brief DetailsY / N

Temporary

Alignment

likely to

add to

Risk?

Typical No of workers

exposed to hazard of

errant vehicle

Details of Departures from Standard

requiredDetails of VRS required

Recommend

use

VRS?

Is Risk level with

other measures, but

without VRS, still

considered

unacceptable?

TD 19 Set-back?

TD 27 Lane width?

Ch 8 TSM

Safety Zone

requirements?

TD 19

Working Width?

If a temporary VRS were to be deployed could it be installed, operated and removed to meet / achieve the following without Departures From Standard:

Risk

Available

Space?

Acceptable

Disruption?Unacceptable?Temp

Temp VRS?

Aggressiveness Factors look up table Aggressiveness Factor

Brick / block wall 1.3

Bridge Abutment - smooth faced 1.7

Bridge Abutment - rough faced 1.7

Bridge Pier 1.7

Single catenary lighting column 1.7

Row of catenary lighting columns < 40m apart 1.7

Single catenary lighting column (passively safe) 0.25

Row of catenary lighting columns (passively safe) < 40m apart 0.25

Chain link / welded mesh / palisade 0.8

Channel lined 0.2

Channel unlined 0.2

Close boarded fence - timber / concrete 0.9

Comms or CCTV Mast 1.8

Comms or Power Cabinet 2.0

Concrete panel wall 1.7

Concrete Piled wall 1.8

Concrete Road Restraint H1 or H2 0.1

Concrete Road Restraint H4a 0.1

Concrete Road Restraint N1 0.1

Concrete Road Restraint N2 0.1

Containment level Not known 0.1

Corrugated buried structures (exposed ends) 0.9

Crib wall 1.7

Culvert 1.8

Ditch lined 0.8

Ditch unlined 0.75

Dry stone wall 1.8

Electricity pole 1.8

Electricity supply cabinet 2.0

Emergency Telephone 0.6

Emergency Telephone (passively safe) 0.2

Environmental Barriers (concrete / timber) 1.8

Environmental Barriers (earth bunding) 0.8

Fencing -

Gabion wall 1.3

Gantry 2.0

Gantry (passively safe) 0.5

H4a (Formerly P6 Type) Containment 0.7

Single high mast lighting column 1.8

Row of high mast lighting columns < 40m apart 1.8

Hurdle, strained wire fence 0.7

Kerb > 250 high 0.2

Kerb 125 to 250 high 0.15

Kerb up to 125 high 0.1

Lagoon 1.5

Single lighting column 1.7

Row of lighting columns < 40m apart 1.7

Single lighting column (passively safe) 0.6

Row of lighting columns (passively safe) 0.6

Masonry wall 1.3

Metal Road Restraint H1 or H2

Metal Road Restraint H4a

Metal Road Restraint N1

Metal Road Restraint N2

N1 (Formerly P2{80} Type) Containment 0.35

N2 (Formerly P1, P2{113}, P5 Type) Containment 0.35

Oil interceptor open ditch type 2.0

Other supporting structure 0.8

Pedestrian Guardrail 0.2

PolesPylons -

Post e.g. TrafficMaster 1.8

Post e.g. TrafficMaster (Passively safe) 0.2

Posts 1.8

Posts (passively safe) 0.2

Profiled wall (deep features) 1.7

Profiled wall (shallow features) 1.7

Pylon 1.8

Reinforced clay brickwork retaining walls 1

Short dwarf wall 0.75

Reinforced soil structures 2.0

Rock face 2.5

Rough faced wall 1.7

S1100Kerbs -

S1200SignsSignals -

Sign on post(s) 1.8

Sign on small post 0.6

Sign on p.s. post(s) 0.2

Sign on gantry 2.0

Sign on p.s. gantry 0.5

Signal on post(s) 1.8

Signal on p.s.post(s) 0.2

Signal on gantry 2.0

Signal on p.s. gantry 0.5

Sign store 1.1

S1300LightingCols -

S1500MwayComms -

S1600RetainingWalls -

S1700Structure -

S2200ParapetContainment -

Parapet over vertical drop less than 2m 1.0 1

Parapet over vertical drop >2m 2.5

Other structure - smooth faced 1.5

Other structure - rough faced 1.7

S2500SpecialStructures -

S400SafetyFence -

S500Drainage -

Sheet Piled wall 1.7

Smooth faced wall 0.25

Steps 0.4

Telegraph pole 1.7Transmission Station 2

600 Earthworks Low risk High risk

Falling 1:1 or steeper 1.0 2.5Falling 1:1.5 or steeper 0.5 2.0

Falling 1:2 or steeper 0.5 2.0

Falling 1:2.5 or steeper 0.5 2.0



Falling shallower than 1:5 0.0 0.0

Nominally at Grade 0.0 0.0

Rising 1:1.5 or steeper 0.8 1.6

Rising steeper than 1:2 0.2 0.4Rising 1:2 or shallower 0.0 0.0

Exposed rock face cutting 2.5 2.5

OH's - Water -

Water <= 1m depth 0.8

Water > 1m depth 1.5

OH's - Trees -

Tree less than 250 mm girth expected in lifetime 0.75

Tree >= 250 mm girth expected in lifetime 2.0

Wooden fence e.g. post and rail 0.7PassivelySafe 0.5

Input Barrier Costs (Average per year)Based on 20 year lifetime

Costs should be input based on an average costs of barrier per metre per year normally based on a 20 year lifetime.

Start Year * 2015 20

End Year * 2035 0.0175

Discount Rate * 5 0.0182

Use Default Values * Yes 1.208707164

N2 H1

Average Cost Per m (Current Year) 54.69 101.66PVC 0.20 0.20

Average cost per year of maintenance 4.19 4.19Cost of Terminal 510.17 510.17

Cost of Option

ID NumberCost of Option

(average per year, £)1200.0001 £311.341200.0001 £350.55

The lifetime cost of installing a road restraint system is:Net present Value (NPV) = PVB / PVC

PVC = C + M (1-(1+D)PVB is the present value of benefits

PVC is the present value of costs. C is the installation cost (default £580 for the terminal and £5 per m for the restraint)M is the annual maintenance cost (default £4.2 per m)D is the discount rate (default 0.03)

TCB pvc/nDetails of Calculation and references

OBB pvc/n

N is the life of the restraint system (default 20 years)

Q is the installation delays (default 0)

Costs taken from Spon 2006; maintenance values from MouchelParkman (M25); traffic mgt costs (not currently used) for installation taken from 25 costs supplied from MouchelParkman to Gavin Williams

Single sided

Cost of beam/m

N2 TCB 24.29N2 OBB 37.36H1 DROBB 84.33

H4A Concrete 370

Default discount rate 0.03

Costs should be input based on an average costs of barrier per metre per year normally based on a 20 year lifetime.

Default Values

H4A

N2 to H1

parapet

upgrade

N2 to H4A

parapet

upgrade

N2

370.00 1000.00 2000.00 Average Cost Per M (Current Year) 54.690.20 0.20 0.20 PVC 14.88

0 0 0

Average cost per year of maintenance 4.19

481.72 0 0 Cost of Terminal 510.17

The lifetime cost of installing a road restraint system is:

PVC = C + M (1-(1+D)-n)/D) + Q

C is the installation cost (default £580 for the terminal and £5 per m for the restraint)M is the annual maintenance cost (default £4.2 per m)D is the discount rate (default 0.03)

Details of Calculation and references

N is the life of the restraint system (default 20 years)

Q is the installation delays (default 0)


Length Cost/post Post spacingNo. of posts Total Cost/m

1000 41.6 3.2 312.5 37290 37.291000 41.6 2.4 416.7 54693 54.691000 41.6 2.4 416.7 101663 101.661000 0 0 0.0 370000 370.00

NB Traffic management costs for installation notcurrently includedRepairs costs subsumed in maiintenance costsRemoval costs not included

H1 H4AN2 to H1 parapet upgrade

N2 to H4A parapet upgrade

101.66 370.00 1000.00 2000.0014.88 25.73 0.00 0.00

4.19 0 0 0510.17 481.72 0.00 0.00

Notes on how this was determined.


Maint/yr/m Terminal Lifetime

Traffic mgt costs per m during installation

Additional costs (e.g. re-surfacing / drainage work)

Total cost per m

4.19 355.15 20 176.00 214.004.19 510.17 20 176.00 231.714.19 510.17 20 176.00 278.68

0 481.72 50 189.00 559.96

Traffic management costs for installation notcurrently included

Enter details of hard shoulder and verge widths

Verge assessed N/S Verge

Chainage Width of verge

0 6249 6250 3.5346 3.5

Start Chainage of

Section0.0

End Chainage

of Section346.0

Carriageway width from

Psb nearside to Psb

offside

Total offside

runoff

distance7.3 7.3

7.3 7.3

7.3 7.3

7.3 7.3

Return to Hazard Listing Worksheet


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

Offset of

hazard from

Psb (End of

Hazard)

Angle of hazard

to PSb

(Degrees)

Height / Depth of

hazard

0300.00010300.0002

These Drainage features have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chaina

ge of

0.0

Local Site Features


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

0500.00010500.00020500.00030500.00040500.00050500.00060500.00070500.00080500.00090500.00100500.00110500.00120500.00130500.00140500.00150500.00160500.00170500.00180500.00190500.00200500.00210500.00220500.00230500.00240500.00250500.00260500.00270500.00280500.00290500.00300500.00310500.00320500.00330500.00340500.00350500.00360500.00370500.00380500.00390500.00400500.00410500.00420500.00430500.00440500.0045

0500.00460500.00470500.00480500.00490500.00500500.00510500.00520500.00530500.00540500.00550500.00560500.00570500.00580500.00590500.00600500.00610500.00620500.00630500.00640500.00650500.00660500.00670500.00680500.00690500.00700500.00710500.00720500.00730500.00740500.00750500.00760500.00770500.00780500.00790500.00800500.00810500.00820500.00830500.00840500.00850500.00860500.00870500.00880500.00890500.00900500.00910500.00920500.00930500.00940500.00950500.00960500.00970500.00980500.0099

0500.0100

End Chainage

of Section346.0

Offset of

hazard from

Psb (End of

Hazard)

Angle of

hazard to

PSb

(Degrees)

Height / Depth

of hazardAggressiveness Local alignment (F2)


Sleep - related Site (F3) Speed (F4) Other features (F6)


Multiplicative factor for

runoff rate

Topography

Factor

These Earthworks features have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

Local Site Features


Start

chainage of

hazard

Width of

slope

Offset of

hazard from

PSb

0600.0001 Nominally at Grade 0.0 0.10 2.00

0600.0002 Nominally at Grade 346.0 0.10 2.00

0600.00030600.00040600.00050600.00060600.00070600.00080600.00090600.00100600.00110600.00120600.00130600.00140600.00150600.00160600.00170600.00180600.00190600.00200600.00210600.00220600.00230600.00240600.00250600.00260600.00270600.00280600.00290600.00300600.00310600.00320600.00330600.00340600.00350600.00360600.00370600.00380600.00390600.00400600.0041

Viaduct - Parapet &

Earthworks InputSplayed Wingwall - Parapet &

Earthworks Input

Parallel Wingwall

0600.00420600.00430600.00440600.00450600.00460600.00470600.00480600.00490600.00500600.00510600.00520600.00530600.00540600.00550600.00560600.00570600.00580600.00590600.00600600.00610600.00620600.00630600.00640600.00650600.00660600.00670600.00680600.00690600.00700600.00710600.00720600.00730600.00740600.00750600.00760600.00770600.00780600.00790600.00800600.00810600.00820600.00830600.00840600.00850600.00860600.00870600.00880600.00890600.00900600.00910600.00920600.00930600.00940600.00950600.00960600.0097

0600.00980600.00990600.01000600.01010600.01020600.01030600.01040600.01050600.01060600.01070600.01080600.01090600.01100600.01110600.01120600.01130600.01140600.01150600.01160600.01170600.01180600.01190600.01200600.01210600.01220600.01230600.01240600.01250600.01260600.01270600.01280600.01290600.01300600.01310600.01320600.01330600.01340600.01350600.01360600.01370600.01380600.01390600.01400600.01410600.01420600.01430600.01440600.01450600.01460600.01470600.01480600.0149

0600.0150

These Earthworks features have been identified as being present in Section.

0.0End Chainage of

Section346.0

Overall Height

slopeOverall width slope

Ave gradient of

Slope % (+ve for

cut, -ve for fill)

0.00 0.10 0.0%

0.00 0.10 0.0%

Parallel Wingwall - Parapet &

Earthworks Input

Parallel Wingwall - Parapet & At

Grade Earthworks Input

Local alignment (F2) Sleep - related Site (F3) Speed (F4)

Good alignment BMean speed approximately

equal to speed limit

Good alignment BMean speed approximately

equal to speed limit


Parapet & At-

Other features (F6)Typical surface of

slope

Typical location of

Highway BoundaryLength of hazard

X Short grass Beyond width of slope 346

X Short grass Beyond width of slope -346

AggressivenessMultiplicative factor

for runoff rateTopography Factor

Width of

hazard

0 0.9 1 0.10

0 0.9 1 0.10

These Kerbing features have been identified as being present in Section. - These should be input for complete section

Verge

assessedN/S Verge

Start

Chainage of

Section

0.0

Local Site Features


Start

chainage

of hazard1100.0001 Kerb 100mm high or less 0.01100.0002 Kerb 100mm high or less 346.01100.00031100.00041100.00051100.00061100.00071100.00081100.00091100.00101100.00111100.00121100.00131100.00141100.00151100.00161100.00171100.00181100.00191100.00201100.0021


These Kerbing features have been identified as being present in Section. - These should be input for complete section

End

Chainage of

Section

346.0


ID

NumberNature of Hazard

Start

chainage of

hazard

Length of

hazardWidth of hazard

Offset of

hazard from

PSb

Cluster of

hazards

Height / Depth

of hazard

Mounting

height

Designed for

collision

loading?

1200.0001 Sign on post(s) 50.0 0.22 4.80 1.20Individual

hazard>3m

1.5m or less mounting ht

Don't know

1200.0002

These Lighting Columns or Masts have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chaina

ge of

Section

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

1300.0001

1300.0002

1300.0003

1300.0004

1300.0005

1300.0006

1300.0007

1300.0008

1300.0009

1300.0010

1300.0011

1300.0012

1300.0013

1300.0014

1300.0015

1300.0016

1300.0017

1300.0018

1300.0019

1300.0020

1300.0021

1300.0022

1300.0023

1300.0024

1300.0025

1300.0026

1300.0027

1300.0028

1300.0029

1300.0030

1300.0031

1300.0032

1300.0033

1300.0034

1300.0035

1300.0036

1300.0037

1300.0038

1300.0039

1300.0040

1300.0041

1300.0042

1300.0043

1300.0044

1300.0045

1300.0046

1300.0047

1300.0048

1300.0049

1300.0050

1300.0051

1300.0052

1300.0053

1300.0054

1300.0055

1300.0056

1300.0057

1300.0058

1300.0059

1300.0060

1300.0061

1300.0062

1300.0063

1300.0064

1300.0065

1300.0066

1300.0067

1300.0068

1300.0069

1300.0070

1300.0071

1300.0072

1300.0073

1300.0074

1300.0075

1300.0076

1300.0077

1300.0078

1300.0079

1300.0080

1300.0081

1300.0082

1300.0083

1300.0084

1300.0085

1300.0086

1300.0087

1300.0088

1300.0089

1300.0090

1300.0091

1300.0092

1300.0093

1300.0094

1300.0095

1300.0096

1300.0097

1300.0098

1300.0099

1300.0100

1300.0101

These Lighting Columns or Masts have been identified as being present in Section.

0.0End Chainage of

Section346.0

Offset of hazard

from PSb

Height / Depth of

Feature

Aggressivenes

sLocal alignment (F2) Sleep - related Site (F3)


Speed (F4) Other features (F6)Multiplicative factor for

runoff rateTopography Factor


These Motorway Comms features have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage of

Section

0.0

Local Site Features

ID


Start

chainage

of hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

1500.00011500.00021500.00031500.00041500.00051500.00061500.00071500.00081500.00091500.00101500.00111500.00121500.00131500.00141500.00151500.00161500.00171500.00181500.00191500.00201500.00211500.00221500.00231500.00241500.00251500.00261500.00271500.00281500.00291500.00301500.00311500.00321500.00331500.00341500.00351500.00361500.00371500.00381500.00391500.00401500.00411500.00421500.00431500.00441500.0045

1500.00461500.00471500.00481500.00491500.0050

1500.0051

These Motorway Comms features have been identified as being present in Section.

End

Chainage of

Section

346.0

Cluster of

hazards

Height / Depth

of hazard

Designed for

collision loading?Aggressiveness Local alignment (F2)


Sleep - related Site (F3) Speed (F4) Other features (F6)Multiplicative factor for

runoff rate


Topography

Factor

These Retaining Wall features have been identified as being present in Section.

Verge

assessedN/S Verge

Start Chainage

of Section0.0

Local Site Features

ID


Start

chainage of

hazard

Length of


Offset of

hazard from

PSb

1600.00011600.00021600.00031600.00041600.00051600.00061600.00071600.00081600.00091600.00101600.00111600.00121600.00131600.00141600.00151600.00161600.00171600.00181600.00191600.00201600.00211600.00221600.00231600.00241600.00251600.00261600.00271600.00281600.00291600.00301600.00311600.00321600.00331600.00341600.00351600.00361600.00371600.00381600.00391600.00401600.00411600.00421600.00431600.0044

1600.00451600.00461600.00471600.00481600.00491600.0050

1600.0051

End

Chainage of

Section

346.0

Offset of

hazard from

Psb (End of

Hazard)

Angle of

hazard to

PSb

(Degrees)

Height / Depth

of hazardAggressiveness Local alignment (F2)




Multiplicative factor for runoff

rateTopography Factor

These Structural features have been identified as being present in Section.

Verge assessed

Local Site Features


Is parapet/structure to be

placed contiguously with

barrier?

1700.00011700.00021700.00031700.00041700.00051700.00061700.00071700.00081700.00091700.00101700.00111700.00121700.00131700.00141700.00151700.00161700.00171700.00181700.00191700.00201700.00211700.00221700.00231700.00241700.00251700.00261700.00271700.00281700.00291700.00301700.00311700.00321700.00331700.00341700.00351700.00361700.00371700.00381700.00391700.00401700.00411700.00421700.0043

1700.00441700.00451700.00461700.00471700.00481700.00491700.0050

1700.0051

These Structural features have been identified as being present in Section.

N/S VergeStart Chainage

of Section0.0

End

Chainage

of Section

Start chainage of

hazardLength of hazard Width of hazard

Offset of

hazard from

PSb

346.0

Structure Carries / Parapet

protectingProtected ID

Substandard

headroom over

c'way, verge or

c/res?

Designed for

collision loading?


Aggressiveness Local alignment (F2)

Return to Hazard Listing WorksheetViaduct - Parapet &

Earthworks Input

Sleep - related Site (F3) Speed (F4)

Splayed Wingwall - Parapet &

Earthworks Input


Earthworks Input

Other features (F6)

Multiplicative

factor for runoff

rate

Topograp

hy Factor


At-Grade Earthworks Input

These Special Structures have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chaina

ge of

Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

2500.0001

2500.0002

2500.0003

2500.0004

2500.0005

2500.0006

2500.0007

2500.0008

2500.0009

2500.0010

2500.0011

2500.0012

2500.0013

2500.0014

2500.0015

2500.0016

2500.0017

2500.0018

2500.0019

2500.0020

2500.0021

2500.0022

2500.0023

2500.0024

2500.0025

2500.0026

2500.0027

2500.0028

2500.0029

2500.0030

2500.0031

2500.0032

2500.0033

2500.0034

2500.0035

2500.0036

2500.0037

2500.0038

2500.0039

2500.0040

2500.0041

2500.0042

2500.0043

2500.0044

2500.0045

2500.0046

2500.0047

2500.0048

2500.0049

2500.0050

2500.0051

End Chainage of

Section346.0

Height / Depth of

hazard

Aggressivenes

sLocal alignment (F2) Sleep - related Site (F3)



runoff rate

Topography

Factor


These Telegraph Poles and Pylons, etc have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of hazard

from PSb

8600.00018600.00028600.00038600.00048600.00058600.00068600.00078600.00088600.00098600.00108600.00118600.00128600.00138600.00148600.00158600.00168600.00178600.00188600.00198600.00208600.00218600.00228600.00238600.00248600.00258600.00268600.00278600.00288600.00298600.00308600.00318600.00328600.00338600.00348600.00358600.00368600.00378600.00388600.00398600.00408600.00418600.00428600.0043

8600.00448600.00458600.00468600.00478600.00488600.00498600.0050

8600.0051

These Telegraph Poles and Pylons, etc have been identified as being present in Section.

End Chainage

of Section346.0

Cluster of

hazards

Height /

Depth of

hazard

Aggressiveness Local alignment (F2) Sleep - related Site (F3)




These significant Trees that might be reached have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

0.0

Local Site Features

ID


Start

chainage

of hazard

Length of

hazard

Width of

hazard

Offset of

hazard

from PSb

8700.00018700.00028700.00038700.00048700.00058700.00068700.00078700.00088700.00098700.00108700.00118700.00128700.00138700.00148700.00158700.00168700.00178700.00188700.00198700.00208700.00218700.00228700.00238700.00248700.00258700.00268700.00278700.00288700.00298700.00308700.00318700.00328700.00338700.00348700.00358700.00368700.00378700.00388700.00398700.00408700.00418700.00428700.0043

8700.00448700.00458700.00468700.00478700.00488700.00498700.0050

8700.0051

These significant Trees that might be reached have been identified as being present in Section.End

Chainage

of

Section

346.0

Cluster of

hazardsAggressiveness Local alignment (F2) Sleep - related Site (F3)



runoff rate


Topography Factor


Start

chainage of

hazard

Length of


Offset of hazard

from PSb

Offset of hazard

from Psb (End

of Hazard)

Angle of hazard

to PSb

(Degrees)

Local alignment (F2)Sleep - related Site

(F3)Speed (F4) Other features (F6)


for runoff rate

Above or below

road level?

Likelihood of

reaching other

hazard based on

topography

Topography

Factor

Permissible Line Speed

and Track AlignmentNo of Tracks

Other

Consequences

Multiplicative

factor

8100.0001

8100.0002

8100.0003

8100.0004

8100.0005

8100.0006

8100.0007

8100.0008

8100.0009

8100.0010

8100.0011

8100.0012

8100.0013

8100.0014

8100.0015

8100.0016

8100.0017

8100.0018

8100.0019

8100.0020

8100.0021

8100.0022

8100.0023

8100.0024

8100.0025

These other Roads that might be reached have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of hazard

from PSb

8200.0001

8200.0002

8200.0003

8200.0004

8200.0005

8200.0006

8200.0007

8200.0008

8200.0009

8200.0010

8200.0011

8200.0012

8200.0013

8200.0014

8200.0015

8200.0016

8200.0017

8200.0018

8200.0019

8200.0020

8200.0021

8200.0022

8200.0023

8200.0024

8200.0025

Road / Rail Input on ViaductRoad input at parallel wingwall

bridge Road input at splayed

These other Roads that might be reached have been identified as being present in Section.

End Chainage

of Section346.0

Offset of hazard

from Psb (End

of Hazard)

Angle of hazard

to PSb (Degrees)Local alignment (F2)

Sleep - related Site

(F3)


Road input at splayed Road input at bridge

Other Risk Features

Speed (F4) Other features (F6)Multiplicative factor

for runoff rate

Relative position of

other road?


Likelihood of

reaching other hazard

based on topography

(F5)

Topography Factor

Actual Speed

of Traffic on

Adjacent Road

(F12)

Other features (adjacent road) (F13)Traffic Flow (Vehicles per

day) (F14)

Other Consequences


These significant water hazards that might be reached have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard

from PSb

8800.00018800.00028800.00038800.00048800.0018800.0018800.0018800.0018800.0018800.00108800.0018800.0018800.0018800.0018800.0028800.0028800.0028800.0028800.0028800.00208800.0028800.0028800.0028800.0028800.0038800.0038800.0038800.0038800.0038800.00308800.0038800.0038800.0038800.0038800.0048800.0048800.0048800.0048800.0048800.00408800.0048800.0048800.0048800.0048800.005

8800.0058800.0058800.0058800.0058800.0050

8800.005

These significant water hazards that might be reached have been identified as being present in Section.

End Chainage

of Section346.0

Offset of hazard

from Psb (End

of Hazard)

Angle of hazard

to PSb

(Degrees)

Aggressiveness Local alignment (F2)




Multiplicative factor for


These other Places where people are likely to congregate or are likely to be particularly exposed to hazard of errant vehicles for long periods of time have been identified as being present in Section

Verge

assessedN/S Verge

Start

Chaina

ge of

Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

8300.0001

8300.00028300.00038300.00048300.00058300.00068300.00078300.00088300.00098300.00108300.00118300.00128300.00138300.00148300.00158300.00168300.00178300.00188300.00198300.00208300.00218300.00228300.00238300.00248300.00258300.00268300.00278300.00288300.00298300.00308300.00318300.00328300.00338300.00348300.00358300.00368300.00378300.00388300.00398300.0040

8300.00418300.00428300.00438300.00448300.00458300.00468300.00478300.00488300.0049

8300.0050


End

Chainage of

Section

346.0

Description of

vulnerable

wall

Aggressiveness Local alignment (F2)Sleep - related Site

(F3)



Other Risk Features


for runoff rate

Likelihood of

reaching other

hazard based on

topography


Topography

Factor

Average Number

of People exposed

to risk

Average time each

person is exposed

to risk (hours per

year)

Total Number of

people at risk

Other Consequences


These Chemical or Fuel Features that might be reached have been identified as being present in Section.

Verge

assessedN/S Verge

Start

Chainage

of Section

0.0

Local Site Features

ID


Start

chainage of

hazard

Length of

hazard

Width of

hazard

Offset of

hazard from

PSb

8000.00018000.00028000.00038000.00048000.00058000.00068000.00078000.00088000.00098000.00108000.00118000.00128000.00138000.00148000.00158000.00168000.00178000.00188000.00198000.00208000.00218000.00228000.00238000.0024

8000.0025

These Chemical or Fuel Features that might be reached have been identified as being present in Section.

End Chainage

of Section346.0

Description of

vulnerable wall

Aggressivenes

sLocal alignment (F2)

Sleep - related Site

(F3)


Other Risk Features


for runoff rate

Likelihood of

reaching other

hazard based on

topography


Topography Factor

Average Number of

People exposed to

risk

Average time each

person is exposed to

risk (hours per year)

Total Number of

people at risk

Other

Consequences


Documents

the Road Restraint Risk Assessment Process (RRRAP)