State Highway Network Outcomes Contract Visual ... · PDF fileNetwork Outcomes Contract Visual...

State Highway

Network Outcomes Contract

Visual Intervention Guideline

Version: August 2013

Status: Final Draft

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Introduction

This guideline has been developed to support the Levels of Service for Maintenance and Operations

developed by the NZ Transport Agency (NZTA) for the state highway network throughout New

Zealand.

The Levels of Service for New Zealand state highways are detailed in the NZTA’s State Highway

Asset Management Plan (SHAMP). These Levels of Service are translated into Operational

Performance Measures in the NZTA’s Operations and Maintenance Outcome Contract (OMC) term

maintenance contracts.

The purpose of this guideline is to:

1. Assist with achieving a consistent level of service across the NZTA’s individual state

highway classifications,

2. Avoid unnecessary tension over performance with respect to misinterpretation of operations and maintenance defects, and

3. Assist with the audit process.

This guideline is intended to provide guidance and direction to:

a. suppliers programming and prioritising maintenance needs on the state highway, and

b. Contract Managers / auditors measuring the performance of suppliers against specific

Operational Performance Measures (OPM) included in the OMC contracts.

It is not intended to cover every condition situation that may arise on the network.

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Using this Visual Intervention Guideline

This guideline must be used in conjunction with the OPMs outlined in the OMC Maintenance

Specification. This guideline supports the OMC document, and therefore if there is any ambiguity

between the OMC document and this guideline, the OMC document takes precedence.

An example OPM table from the OMC document is shown in Figure 1 below.

Figure 1: Example OPM Table expected from the OMC Document

The OPM table defines the defect and the contract standard (or performance measure) for each

of the road classifications. The contract standard varies by road class for some of the OPMs.

It is important to note that this Visual Intervention Guideline focuses on assisting with defining the

defect, not the contract standard (i.e. number of defects required to trigger a non-conformance).

Figure 2 shows an extract from the Visual Intervention Guideline and highlights the key attributes

of the Visual Intervention Guideline document.

An OPM is typically represented by two pages. The first page defines the defect in words and

includes either a simple sketch or photograph (or both) to show how the defect is to be assessed

(measured). The second page includes a series of photos illustrating typical defects.

In some cases the guideline includes photographs of defects that are acceptable. These defects are

highlighted green.

The document also states whether the visual guideline is considered to be a “Guideline” or a

“Standard”. In the case of a standard, there is no easy way to measure the defect, therefore the

photos included in this visual guideline should be considered the standard.

The OPMs contained in the visual intervention guidelines are ordered to match the OPMs in the

NZTA’s OMC contract documentation.

Defect Contract

Standard

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Figure 2: Key Attributes of the Visual Guideline Document

It is important to note that not all OPMs included in the OMC document are covered in this Visual

Intervention Guideline. Visual guidelines are only included where this adds value to the

interpretation of defects. Where a defect is based on an asset type either being present on the

Network or not (e.g. missing signs) visual guidelines are not provided as this is deemed to add little

value to assessing the level of performance.

Guideline

or

Standard

Operational

Performance

Measure

Defect level photograph

with description shown

in red text

Defect

Assessment Defect requirements

(location, etc.) if

required

Photographic

Defect

Assessment

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OMC SECTION 6.1.1 - ROUTINE SEALED PAVEMENT MAINTENANCE

OPM GROUP 6.1.2 SURFACE BUMPS

OPM NUMBER 20 - 22

Defect Surface bump within the wheel paths or cycle lanes/path > ± 20mm lip as a result of the Contractor’s completed work (or monitored work), which causes a noise, vibration or ride nuisance.

Example Defects Service covers, Seal joins, Bridge abutments.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, a 2m straight edge is to be laid longitudinally along the carriageway within the wheel path or cycle lanes/path, across the service cover / seal join / bridge abutment. A rule or tape measure is to be used to determine the height of the drop off between surfacing types.

Photographic Example of Assessment

Surfacing B Surface Bump Measurement

Surfacing A

Straight Edge

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Defect

Defect Description:

Example: Service cover

not levelled accurately

prior to resurfacing

resulting in either being

too proud of the new

surfacing or being lower

than the new surfacing.

Defect

Defect Description:

Example: Seal Join where

a large grade chip has

been constructed (e.g.

reseal, maintenance

patch) and no transition

has been allowed for

creating a surface bump.

Defect

Defect Description:

Example: Settlement of

bridge abutment

creating a surface bump.

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OPM GROUP 6.1.3 POTHOLES

OPM NUMBER 24 - 27

Defect Pothole > 150mm in diameter.

Example Defects Potholes in chipseal, asphaltic concrete and maintenance repairs, located anywhere across the carriageway.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, a straight edge (sufficient in length to span the pothole) is to be laid on the carriageway across the pothole and a rule or tape measure is to be used to determine the height from the surfacing level to the bottom of the pothole. A tape measure is to be used to determine the diameter of the pothole.


Surfacing

Surface Bump

Measurement

Straight Edge

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Acceptable

Defect Description:

Example - Pothole is less

than 150mm in diameter

Defect

Defect Description:

Example - Pothole is

more than 150mm in

diameter

Defect

Defect Description:

Example - Pothole well in

excess of 150mm in

diameter

500mm

150mm

100mm

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OPM GROUP 6.1.4 DEFORMATIONS, HEAVES AND SHOVES

OPM NUMBER 28

Defect Deformation, heave or shove with height or depth > 50mm within the sealed pavement area (when measured from peak to trough).

Example Defects Uneven surface, heaves, shoves, etc.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, a 2m straight edge is to be laid across the carriageway (transversely or longitudinally depending on the position of the deformation) and a rule or tape measure is to be used to determine the height from peak to trough of the deformation.


Trough

Peak Depth Surfacing

Straight Edge

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Defect

Defect Description:

Example - pavement

shear on the edge line

resulting in a

deformation (peak to

trough) of more than

50mm.

Defect

Defect Description:

Example - pavement

shear between the wheel

tracks resulting in a

deformation (peak to

trough) of more than

50mm.

Defect

Defect Description:

Example - Subsidence

resulting in a

deformation in the

carriageway of more

than 50mm.

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OPM GROUP 6.1.5 RUTTING

OPM NUMBER 30 - 32

Defect >20mm depth, or constitutes a safety hazard.

Example Defects Wheel track rutting.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, a 2m straight edge is to be laid transversely across the carriageway and a rule or tape measure is to be used to determine the height from the surfacing level to the bottom of the rutted area.


Surfacing

Rut depth

Straight Edge

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Defect

Defect Description:

Example - Rutting

(>20mm) in the wheel

track associated with

flushed and cracked

pavement.

Defect

Defect Description:

Example - Rutting


track associated with

flushed pavement.

Defect

Defect Description:

Example - severe rutting


track causing water to

pond.

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OPM GROUP 6.1.6 FLUSHING

OPM NUMBER 33

Defect Flushed area within a trafficked lane >10m long that constitutes a safety hazard (i.e. less than NZTA T/10 TL minimum texture depths) on those sites treated by the Contractor.

Example Defects Sealed surface flushed, binder rise.

Assessment

Standard

Initial assessment by vehicle observer to determine flushing located in areas of the network that constitute a safety hazard. Note: additional testing may be required to determine skid risk.


Example: Localised flushing, with no surfacing aggregate exposed, on the approach to a high speed intersection.

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Acceptable

Defect Description:

Example - Chip seal

with binder rise.

Defect

Defect Description:

Example - Chip seal

with only a small

quantity of surfacing

aggregate exposed and

located in an area of

the network that

constitutes a safety

hazard (e.g. on a curve

or on the approach to

an intersection).

Note: additional testing

may be required to

determine skid risk.

Defect

Defect Description:

Example - Chip seal

with all surfacing

aggregate covered in

binder and located in

an area of the network

that constitutes a safety

hazard (e.g. on a curve

or on the approach to

an intersection).

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OPM GROUP 6.1.7 EDGE BREAK

OPM NUMBER 34 - 36

Defect Encroaching into edge line.

Xm of continuous edge break where encroachment is more than 250mm into seal at any point, where X is 2m and 5m for highway classifications NSHVH, NSH, RSH and RCH, RDH respectively.

Example Defects Fretting or breaking of the edge of a bituminous surface.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, variance of seal edge from nominal edge of seal line to be measured using straight edge and tape measure.


Nominal Edge of Seal Line

Encroachment

Edge Break Line

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Defect

Defect Description:

Example - Loss of

surfacing asset due to

edge break encroaching

into the edge line.

Defect

Defect Description:

Example - Loss of


edge break away from

nominal seal edge.

Defect

Defect Description:

Example - Loss of


edge break away from

nominal seal edge.

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OPM GROUP 6.1.8 SHOULDER MAINTENANCE

OPM NUMBER 37 - 39

Defect > 10m of continuous low shoulder or edge rutting, > 50mm on a straight

Low shoulder or edge rutting, > 50mm on a bend

Low shoulder or edge rutting, > 100mm.

Example Defects Drop off from sealed surface onto adjacent unsealed shoulder.

Assessment

Guideline

Initial assessment by vehicle observer. If necessary, a 2m straight edge is to be laid across the carriageway and sealed shoulder and a rule or tape measure is to be used to determine the height of the drop off from line of seal to level of unsealed shoulder.


Sealed Shoulder

and carriageway

Unsealed Shoulder

Low Shoulder Measurement Edge of Seal

Straight Edge

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Defect

Defect Description:

Example – More than 10

metres of continuous

low shoulder of more

than 50mm on a

straight.

Defect

Defect Description:

Example – Low shoulder

of more than 50mm on a

bend.

Defect

Defect Description:

Example – Low shoulder

of more than 100mm.

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OPM GROUP 6.2.1 NON-VULNERABLE SUMPS, MANHOLES AND CATCHPITS

OPM NUMBER 46

Defect Debris < 200mm below the internal outlet pipe invert or > 20% of the cross-sectional area of outlet pipe covered with debris or for manholes and like features, >33% of the grate is blocked, not repaired within 2 months as identified from an annual drainage inspection.

Example Defects Blocked sump, manhole, catchpit, etc.

Assessment

Guideline

Assessment by individual asset inspection. Tape, rule or survey staff to be used to measure depth from invert of outlet pipe to debris level at base of sump.

Intake Grate

Min 200mm

Outlet Pipe

Invert Level

Outlet Pipe

Surfacing /

drainage

channel

Base of Sump

Debris

Sump

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Defect

Defect Description:

Example - Catchpit with

debris less than 200mm

below the invert level of

the outlet pipe.

Defect

Defect Description:

Example - Blocked outlet

pipe.

Defect

Defect Description:

Example - Blocked intake

grate.

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OPM GROUP 6.2.2 NON-VULNERABLE CULVERTS, SUBSOIL AND HORIZONTAL DRAINS

OPM NUMBER 47 - 49

Defect > 20% of the cross-sectional area of the culvert inlet, outlet or barrel filled with debris, not remedied within 2 months as identified from an annual drainage inspection.

> 20% of the cross-sectional area of the culvert filled with water caused by poor maintenance of downstream hydraulic conditions, within the Limit of Works, not remedied within 2 months as identified from an annual drainage inspection.

Subsoil drain not flushed or horizontal drain not scraped clean in accordance with the timeframes specified within Appendix 6.6, Culverts, Subsoil and Horizontal Drains Maintenance Schedule.

Example Defects Blocked culvert, subsoil, etc.

Assessment

Guideline

Assessment by individual asset inspection. The following sketches are provided to assist with the visual assessment of the percentage of the cross-sectional area of the culvert inlet, outlet or barrel that is filled with debris.

Acceptable

Defect Description:

Example - Build-up of

debris material in culvert

barrel equivalent to

approximately 10% of

the cross-sectional area

of the culvert.

10% Full

Acceptable Defect Defect Defect

25% Full 50% Full 85% Full

Debris Debris

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Defect

Defect Description:

Example - Culvert inlet

85% blocked with debris,

including collapsed

timber headwall.

Defect

Defect Description:

Example - Culvert filled

with water due to poor

maintenance of drain

downstream

Defect

Defect Description:

Example – Horizontal

drain in poor condition

and not scraped clean

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OMC SECTION 6.2.1 - ROUTINE DRAINAGE MAINTENANCE

OPM GROUP 6.2.3 LINED SURFACE WATER CHANNELS

OPM NUMBER 50 - 51

Defect Isolated blockage that could allow water to pond or flow onto the carriageway or undermine the asset integrity.

> 50% of the channel hydraulic cross-section inoperative.

Example Defects Blocked kerb and channel, blocked dish channel

Assessment

Guideline

Initial assessment by vehicle observer. Individual asset inspection may be required in some situations to determine whether the kerb and channel capacity is limited by debris such that water could flow onto carriageway during periods of rain.

Dish channel capacity limited by debris such that water could flow onto carriageway during periods of rain

Dish

Channel Debris

Channel 100%

Full Level

Channel

50% full

Carriageway

Carriageway Channel 100%

Full Level

Channel

50% full Kerb and

Channel

Debris

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Acceptable

Defect Description:

Example - Debris

blocking less than 50%

of the channel that

would not result in water

flowing onto the

carriageway during

periods of rain.

Defect

Defect Description:

Example - Debris

blocking more than 50%

of the channel that

would result in water

flowing onto the

carriageway during

periods of rain.

Defect

Defect Description:

Example - Debris

blocking more than 50%

of the channel that

would result in water

flowing onto the

carriageway during

periods of rain.

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OPM GROUP 6.2.4 UNLINED SURFACE WATER CHANNELS

OPM NUMBER 52 - 54

Defect Isolated blockage that would allow water to pond or flow onto the carriageway or undermine the asset integrity.

> 50% of the channel hydraulic cross section inoperative.

Example Defects Blocked side drain

Assessment

Guideline

Initial assessment of surface water channels by vehicle observer. Individual asset inspection may be required in some situations to determine whether surface water channel capacity is limited by debris such that water could flow onto carriageway during periods of rain.

Initial assessment of side drains by vehicle observer, but likely that individual asset inspection will be required, due to visibility, to determine whether side drains are obstructed such that water does not readily flow away and may result in water flowing onto the carriageway during periods of rain.

Side

Drain

Surface Water

Channel Carriageway

Channel 100%

Full Level

Surface Water Channel Carriageway

Channel

50% full

Debris

Debris

Ponding Water

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Acceptable

Defect Description:

Example - SWC recently

cleaned with no

obstructions and

therefore no ponding

water.

Acceptable

Defect Description:

Example - Fretting

material from adjacent

cut batter blocking SWC

and causing water to

pond.

Defect

Defect Description:

Example - Obstruction in

surface water channel

causing water to pond.

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OPM GROUP 6.2.5 VULNERABLE FLOODING AREAS

OPM NUMBER 55 - 57

Defect Water does not readily flow to the outlet point.

Isolated blockage that would allow water to pond or flow onto the carriageway or undermine the asset integrity.

> 20% of the channel hydraulic cross section inoperative.

Example Defects Blocked drainage systems causing flooding.

Assessment

Guideline

By a combination of vehicle observer and individual asset inspection.

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Defect

Defect Description:

Example - Water does not readily flow to the outlet point.

Defect

Defect Description:

Example - Isolated blockage that would allow water to pond or flow onto the carriageway or undermine the asset integrity.

Defect

Defect Description:

Example - > 20% of the

channel hydraulic cross

section inoperative.

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OMC SECTION 6.3.1 - STRUCTURES ROUTINE MAINTENANCE

OPM GROUP 6.3.1 BRIDGE AND OTHER STRUCTURES MAINTENANCE

OPM NUMBER 58

Defect Graffiti in view of road users or pedestrians.

Example Defects Graffiti on bridge end posts/rails/kerbs/piers. Graffiti on pedestrian walkway walls/floors/ceilings.

Assessment

Guideline

Combination of vehicle observer and individual asset inspection from pedestrian pathways.

Acceptable

Defect Description:

Example - Graffiti on

underside of bridge,

not visible to road

users or pedestrians.

Acceptable

Defect Description:

Example - Graffiti on

underside of bridge,

not visible to road

users or pedestrians.

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Defect

Defect Description:

Example - Graffiti visible

to pedestrians.

Defect

Defect Description:


to road users and

pedestrians.

Defect

Defect Description:


to pedestrians.

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OPM NUMBER 59

Defect No blocked drainage system. No undesirable drainage discharge point.

Example Defects Blocked bridge drainage ports/channels.

Assessment

Guideline

Individual asset inspection.

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Defect

Defect Description:

Example - Drainage

channel full with detritus

and vegetation.

Defect

Defect Description:

Example - Drainage

channel full with

detritus.

Defect

Defect Description:

Example - Drainage

outlet blocked.

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OPM NUMBER 60

Defect Debris impeding joint movement or damaging the joint.

Example Defects Aggregate/debris/vegetation filling up joint. Dislodged expansion joint material impeding joint movement.

Assessment

Guideline


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Defect

Defect Description:

Example - Debris

impeding joint

movement or damaging

the joint.

Defect

Defect Description:

Example - Debris

impeding joint


the joint.

Defect

Defect Description:

Example - Debris

impeding joint


the joint.

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OPM NUMBER 61

Defect > 20% of the cross-sectional area of waterway obstructed by debris or inappropriate vegetation (within the Limits of Work).

Example Defects Build-up of debris against box/barrel culverts. Build-up of debris around bridge piers.

Assessment

Guideline

Combination of vehicle observer and individual asset inspection.

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Defect

Defect Description:

Example – Large amount

of debris obstructing

waterway.

Defect

Defect Description:



waterway.

Defect

Defect Description:



waterway.

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OPM GROUP 6.3.2 BARRIERS, END TREATMENTS AND HAND RAIL MAINTENANCE

OPM NUMBER 62 - 63

Defect Integrity of individual barrier component is deficient, contributing towards an inoperative barrier system and end treatments, as designed.

Integrity of individual rail component is deficient contributing towards an inoperative rail system as designed.

Example Defects Damage to barrier panels, posts, supports, end treatments.

Assessment

Guideline


Defect

Defect Description:

Example - Guardrail

block out damaged and

needs to be replaced.

Defect

Defect Description:

Example - Guardrail not

attached to block out

and needs to be

repaired.

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Defect

Defect Description:

Example - Guardrail

block out missing and

needs to be replaced.

Defect

Defect Description:

Example – Handrail

damaged resulting in in-

operative rail system. In

need of repair.

Defect

Defect Description:

Example - Guardrail end

terminal not installed

correctly and needs to

be repaired.

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OPM GROUP 6.3.3 BARRIER AND HAND RAIL DAMAGE REPAIRS

OPM NUMBER 64 - 67

Defect Barrier structurally damaged (and not programmed for repair) resulting in an inoperative barrier system as designed (excluding end treatments).

Structurally damaged (and not programmed for repair) resulting in an inoperative rail system as designed.

Example Defects ‘Crumpling’/flattening of W-section. Broken posts/end treatments. Separation of posts and W-section.

Assessment

Guideline

Combination of vehicle observer and individual asset inspection.

Acceptable

Defect Description:

Example – Minor damage

to guardrail but still

operative. Does not need

repairing.

Acceptable

Defect Description:

Example – Minor damage

to guardrail but still

operative. Does not need

repairing.

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Defect

Defect Description:

Example – Structural

damage to guardrail in

need of repair.

Defect

Defect Description:

Example – Structural

damage to guardrail in

need of repair.

Defect

Defect Description:

Example – Handrail bent

and potentially

hazardous.

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OMC SECTION 6.4.1 - ROUTINE ENVIRONMENTAL MAINTENANCE

OPM GROUP 6.4.6 VEGETATION CONTROL - GENERAL - TYPE 1 (URBAN) CONTROL

OPM NUMBER 75

Defect Vegetation < 20mm or > 75mm in height.

Example Defects Overgrown vegetation in urban shoulders, medians, traffic islands and road verges.

Assessment

Standard

Assessment by vehicle observer.

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Acceptable

Defect Description:

Example – Grassed

island well maintained.

Defect

Defect Description:

Example – Rank

vegetation growth on

speed threshold at

approach to urban zone.

Defect

Defect Description:

Example – Rank

vegetation growth on

verge between

carriageway and

adjacent off road

cycleway.

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OPM GROUP 6.4.6 VEGETATION CONTROL - GENERAL - TYPE 2 (REST AREAS) CONTROL

OPM NUMBER 76


Example Defects Overgrown grass at rest area.

Assessment

Standard


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Acceptable

Defect Description:

Example - Grass at rest

area is less than 150mm

in height.

Defect

Defect Description:


area is more than

150mm in height.

Defect

Defect Description:


area is a lot more than

150mm in height.

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OPM GROUP 6.4.6 VEGETATION CONTROL - GENERAL - TYPE 3B CONTROL

OPM NUMBER 77 - 80

Defect <160m minimum forward sight visibility to all signs and delineation devices.

Vegetation within the clear Vegetation-free zone.

Example Defects Overgrown vegetation affecting sight distance to road sign or delineation device.

Assessment

Standard


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Defect

Defect Description:

Example – Overgrown

vegetation affecting

forward visibility to sign.

Defect

Defect Description:



forward visibility to edge

marker post.

Defect

Defect Description:



forward visibility to sign.

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OPM GROUP 6.4.6 VEGETATION CONTROL - GENERAL - TYPE 5 CONTROL

OPM NUMBER 81

Defect Area not vegetation-free or near vegetation-free.

Example Defects Overgrown vegetation around culvert markers, headwalls, retaining structures, guardrails, sight rails, surface water channels, kerb and channel, weigh stations, side drains, culvert waterways, bridges, rest area furniture and roadside furniture.

Assessment

Standard

EMP’s and Signs -

Guardrails -

Culverts -

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Defect

Defect Description:


vegetation around edge

marker post.

Defect

Defect Description:


vegetation around rest

area furniture.

Defect

Defect Description:


vegetation around

culvert end.

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OPM GROUP 6.4.6 VEGETATION CONTROL - GENERAL - TYPE 7 CONTROL

OPM NUMBER 82 - 83

Defect Non-compliance with requirements of Type 7 control.

Designation Conditions and Plans.

Example Defects Planted area which has not been weeded.

Bark or gravel chip within planted area which has not been raked.

Dead tree within planted area.

Overgrown trees or shrubs within planted area affecting sight distance.

Overgrown trees or shrubs within planted area affecting health of other plants.

Assessment

Standard

Visual assessment from vehicle, supported by detailed site inspection if required.

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Defect

Defect Description:

Example – Planted area

which has not been

maintained.

Defect

Defect Description:


which has not been

maintained.

Defect

Defect Description:


which has not been

maintained.

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OPM GROUP 6.4.7 SIGHT LINE VEGETATION CONTROL - TYPE 3A CONTROL

OPM NUMBER 86 - 90


Vegetation < 25mm or > 300mm in height.

Example Defects Overgrown vegetation affecting visibility at rural road intersection or inside or curve.

Assessment

Standard


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Defect

Defect Description:

Example – Sight visibility

on inside of curve

affected by overgrown

vegetation.

Defect

Defect Description:

Example – Sight visibility

on inside of curve

affected by overgrown

vegetation.

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OPM GROUP 6.4.9 LITTER COLLECTION

OPM NUMBER 92 - 93

Defect Litter item visible, to anyone who is travelling at normal operating speed.

Example Defects Isolated litter (e.g. bottles, food wrappers, newspapers, etc). Domestic refuse (e.g. rubbish bags). Dumped household furniture (e.g. mattresses).

Assessment

Guideline

Assessment by vehicle observer. Visible items of litter to be counted.

Acceptable

Defect Description:

Litter not visible to

motorist while travelling

at normal operating

speed.

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Defect

Defect Description:

Example - Litter items

visible to motorist while

travelling at normal

operating speed.

Defect

Defect Description:

Example – Multiple litter

items visible to motorist

while travelling at

normal operating speed.

Defect

Defect Description:

Example – Large litter

items visible to motorist

while travelling at

normal operating speed.

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OPM GROUP 6.4.10 DETRITUS

OPM NUMBER 94 - 96

Defect An area where there is > 500 grams of detritus (e.g. sealing chip, slip material) per two square metres of sealed surface and/or is considered a safety hazard.

Example Defects Loose sealing chip, slip material.

Assessment

Guideline

Visual assessment by vehicle observer.


NOTE – approx. 500grams

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Acceptable

Defect Description:

Example – Approx.

250grams of loose seal

chip in a 2 square metre

area on sealed surface.

Acceptable

Defect Description:

Example – Approx.


chip and vegetation in a

2 square metre area on

sealed surface.

Defect

Defect Description:

Example – More than


chip in a 2 square metre

area on sealed surface.

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OPM GROUP 6.4.11 REST AREA AND HEAVY COMMERCIAL VEHICLE FACILITY MAINTENANCE

OPM NUMBER 97 - 98

Defect Pothole within trafficked area greater than 150mm in diameter.

Example Defects Potholes in chipseal, asphaltic concrete and maintenance repairs, located anywhere across the carriageway.

Assessment

Guideline

Initial assessment by vehicle observer, supported by physical measurement of defect if required.


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Acceptable

Defect Description:

Example - Pothole less

than 150mm diameter.

Defect

Defect Description:

Example - Pothole more

than 150mm diameter.

Defect

Defect Description:

Example - Pothole well in

excess of 150mm

diameter.

100mm

160mm

500mm

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OPM GROUP 6.4.12 REST AREA AND HEAVY COMMERCIAL VEHICLE FACILITY CUSTOMER MAINTENANCE

OPM NUMBER 100

Defect There is non-functioning or damaged, but repairable, equipment or furniture.

Example Defects Broken picnic tables, rubbish bins.

Assessment

Guideline


Acceptable

Defect Description:

Example - Picnic table at

rest area in good

condition

Acceptable

Defect Description:

Example - Rubbish bin at

rest area in good

condition

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Defect

Defect Description:

Example - Rubbish bin at

rest area damaged but

repairable.

Defect

Defect Description:



repairable.

Defect

Defect Description:



repairable.

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OMC SECTION 6.5.1 - ROUTINE TRAFFIC SERVICES MAINTENANCE

OPM GROUP 6.5.1 SIGNS

OPM NUMBER 105 - 110

Defect Physically missing or illegible Regulatory.

Physically missing or illegible sign that is not Regulatory.

Graffiti visible from 50 metres in rural areas.

Example Defects Missing, damaged, illegible or graffiti on signs.

Assessment

Guideline


Acceptable

Defect Description:

Example : No defects

Acceptable

Defect Description:

Example : Graffiti on

back of sign not visible

from 50 metres

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Defect

Defect Description:

Example : Regulatory

sign damaged and not

visible to motorist

Defect

Defect Description:

Example : Sign damaged

and not visible to

motorist

Defect

Defect Description:

Example : Graffiti on

sign visible from 50

metres

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OPM GROUP 6.5.2 SIGNS

OPM NUMBER 110

Defect Sign not visible at night from a distance of 160m, with head lights on dipped beam, and/or has a reflectivity of less than 50% of its original reflectivity.

Example Defects Dirty signs, faded signs, damaged signs.

Assessment

Guideline

Assessment by vehicle observer at night.

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Acceptable

Defect Description:

Example : Sign reflective

and visible at night from

160 metres

Defect

Defect Description:

Example : Sign not very

reflective and not visible

at night from 160

metres

Defect

Defect Description:

Example : Sign not very

reflective and not visible

at night from 160

metres

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OPM GROUP 6.5.3 RAISED PAVEMENT MARKERS


Defect Not visible from 160m at night, when viewed from the centre of the lane with headlights on full beam or 80m on dipped beam, where the road geometry permits a line of sight.

Three or more consecutive RPMs on curves not visible from 160m at night, when viewed from the centre of the lane with headlights on full beam or 80m on dipped beam, where the road geometry permits a line of sight.

Example Defects Missing, damaged and/or non-visible raised pavement markers.

Assessment

Guideline


Acceptable

Defect Description:

Example - Raised

pavement markers visible

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Acceptable

Defect Description:

Example - Raised

pavement marker in good

condition and will be

visible to oncoming

motorists.

Defect

Defect Description:

Example – No raised

pavement markers visible

Defect

Defect Description:

Example - Raised

pavement marker in poor

condition and will not be

visible to oncoming

motorists.

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OPM GROUP 6.5.4 EDGE MARKER POSTS


Defect Reflector not visible.

Two or more consecutive reflectors on the same side of the road, on curves, not visible from 160m at night, when viewed from the centre of the lane with headlights on full beam or 80m on dipped beam.

Example Defects Missing or non-visible edge markers.

Assessment

Guideline


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Acceptable

Defect Description:

Example – Edge marker

post reflector visible

Defect

Defect Description:

Example - Edge marker

post reflector not visible

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OPM GROUP 6.5.7 LRMS


Defect Missing, non-functional or incorrectly located sign or pavement marking.

Missing, damaged, non-functional or incorrectly located kilometre marker post.

Two or more consecutive missing or damaged kilometre marker posts.

Example Defects Missing, damaged, illegible, signs or markings.

Assessment

Guideline


Acceptable

Defect Description:

Example – kilometre

marker post in good

condition.

Acceptable

Defect Description:


marker post in good

condition.

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Defect

Defect Description:

Example –kilometre

marker post non-

functional.

Defect

Defect Description:

Example – markings on

kilometre marker post in

poor condition.

Defect Description:


marker post damaged

and is non-functional.

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OPM GROUP 6.5.8 PNZTA P/22 PAVEMENT MARKING – LINES, TEXT, SYMBOLS, etc.

OPM NUMBER 121

Defect After installation, faults identified as per NZTA P/22.

Example Defects Faded/worn/illegible markings. Incorrectly placed markings.

Assessment

Guideline


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Defect

Defect Description:

Example – Limit line

and triangle in poor

condition.

Defect

Defect Description:

Example – Limit line in

poor condition.

Defect

Defect Description:

Example – Limit line in

poor condition.

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Date post:	06-Feb-2018
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