Your Roads Conference 2015 Transport for Buckinghamshire What is - - PowerPoint PPT Presentation

Transport for Buckinghamshire

“Your Roads” Conference 2015

Transport for Buckinghamshire

What is this working session about?…

• Giving you some insight into

the challenges we face in managing a highway network.

• Increase your understanding of

balancing priorities in relation to a highway maintenance budget.

• Considering long term planned

work.

• Looking at the broader

community issues (not specific locations).

• The questions we are looking to

answer ….. – Have we got the priorities right? – Is the budget split / balance correct?

• This is not about setting

the overall or future budgets.

• Not focused on devolution

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The Services we’re looking at….

• Carriageways
• Street Lighting
• Footways
• Structures
• Intelligent Transport

Systems (Traffic Signals)

• Drainage
• Barriers / fences / signs /

road markings

• If you have a burning

question about your parish, please talk to one

• f the team separately

who can take the details

3

Your Budget Slip…

Area of work Typical budget Your spend Carriageways £15m Street Lighting £1.15m Footways £1m Structures £1m Intelligent Transport Systems £0.5m Drainage £1.1m Ancillary works £0.25m

TOTAL: £20m

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Transport for Buckinghamshire

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The Challenges

Mark Shaw

Cabinet Member for Transportation

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What is the Challenge?

• This is a National issue,

we do our part.

• Managing an ageing asset

that everybody uses every day. How we are improving

• We are taking a long

term view.

• Listen to our residents

priorities.

• Evidence based

prioritisation.

• Better communication,

tell people what we are doing. Why Invest?

• Transport is vital to the

success of our County’s well being.

• A planned approach offers

better value for money.

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Transport for Buckinghamshire

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Carriageways The Vital Asset

Keith Carpenter

Asset Team Leader

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• A Roads: 418 km
• B Roads 152 km
• C Roads 826 km
• U Roads 1811 km

Buckinghamshire's Highway Network

Classified Roads – 1396km (44%) Unclassified Roads – 1811km (56%)

A - 13% B - 5% C - 26% U – 56%

• Urban – 44%
• Rural - 56%

Background – The Network

83% 8% 1% 6% 2% Carriageways Footways Lighting Structures Other

Proportion of network by asset value

(incl. traffic signals, signs, etc.)

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Use – Why they are important.

• County Council’s Strategic Plan (2015-17):
• Keeping Buckinghamshire Thriving and Attractive

– Deliver Improved condition of roads and footpaths

• “Roads play a significant part in everyday life. Poorly

maintained local roads, blighted by potholes, are a menace to all road users,” (Transport Secretary)

• “Investing in our roads and rail will support the whole

UK economy. Government cannot afford to take the South East for granted.” (Martin Tett)

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Use – Why they are important.

• The Government has allocated increased funding of

£6Bn over the next 5 years.

• 15,000 Potholes in 2014 & 20,000 Customer contacts

mainly around road condition.

• Nearly bottom of the National Highways &

Transportation Satisfaction Survey

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What Business Think

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Historic Funding Declining Condition

100 200 300 400 500 600

A class B class C class Unclassified

Length in kms

km 'not in generally good condition' 13

What we have Achieved

• Continued and steady improvement
• Over 1300 Roads treated since 2011
• More resilient network
• Still a way to go
• National Issue – But Bucks is improving.

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What does this mean

• Fewer Potholes
• Fewer Complaints
• Fewer Claims for damage
• More resource to spend on other assets
• Prevention is Better than Cure

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Fewer Roads like this

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More Roads Like This

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What we Need

• To stay as we are (Steady State) costs around £8m-

£10m per Annum

• Typical Spend per annum has been £15m since 2011
• Current Spend this year is £25m
• This will provide a significant uplift to the condition of our

roads

• £25m this year allowed us to treat over 300 Roads
• £15m per annum would make a steady improvement
• Still a way to go. We have over 1200 potential schemes
• n the classified network alone.

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Transport for Buckinghamshire

Street Lighting Lighting the way

Stuart Labross

Revenue Lead

The Lighting Asset

• 36000 Public Lighting Assets

– 28925 Lamp Columns (including Wall & Pole Brackets) – 4500 Illuminated Signs – 1600 Illuminated & Reflective Bollards – 440 Belisha Beacons – 400 Feeder Pillars – 128 School Patrol Flashers (wig-wags) – 7 High Mast columns

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Why Street Lighting

• Helps us to go about our business during the evenings.
• Street lighting helps to support the local community by

contributing towards a reduction in night time road traffic collisions.

• It also contributes to a reduction in fear of crime and

perceived risks of crime.

• FACT - only a quarter of all ‘journeys by car’ are

between the hours of 7pm and 8am, yet this period accounts for 40% of fatal and serious injuries to the same group

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Current Asset Condition

• Aged and Tired
• Third of network structurally tested – over half requires

maintenance within the next 12 months

• Third of network electrically tested – over 80% requires

maintenance

• Structural Replacement Scheme covers planned

maintenance following the Structural programme

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Current Column Age Data

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Examples of Failed Columns

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Spend Profile

• Capital (Schemes)
• 2015 – 16 £1.3m for Structural Column Replacement (typically

£1.15m) Total budget of £2.25m, used for the Variable Lighting Scheme (including LED Replacement Programme)

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What would be done with more money

• Asset stock would be replaced with new columns

improving the average age of the asset and reducing the future column failure rate.

• All new columns would be installed with new ‘LED’

lanterns reducing the energy consumption and reducing future maintenance/revenue costs.

• Pro-active review of complex Lighting areas, re-

designing and building where maintenance and energy can be reduced.

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The effect of spending less money

• Higher potential risk of column structural failure
• Higher potential risk of electrical failure on columns,

illuminated signs and bollards leading to legal non- compliance!

• Higher % of Lighting ‘out of light’ leading to customer

dissatisfaction, complaints and more time dealing with enquiries.

• Higher revenue costs for maintaining assets, longer time

assets out of light.

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Transport for Buckinghamshire

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James Bayley

Asset Engineer

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Footways Why we need to invest

We have 2,242km of Footway

Busy Urban Shopping areas – Main Pedestrian Routes Medium Usage routes Lower usage footway – account for 92%

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Why investing in footways important.

• Life blood of the county - Town centres, schools, health

centres, local shops, leisure activities

• Encourages modal shift – healthier and better for the

environment

• Ticks every box of the County Council’s Strategic Plan

(2015-17)

• Improve service for the vulnerable
• Reduces potential for trips and fall injuries
• Reputation – We live in a beautiful County we should

keep it that way!

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Current Footway Condition

Network Group Condition Band As New Functionally Impaired Structurally Impaired All Footways 26% 54% 20%

Functionally impaired – Cracked but level flags, minor surface deterioration (fretting, fatting etc) Structurally Impaired – Cracked and/or uneven flags, major surface deterioration, potholes and/or poor shape.

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But what does that split of condition mean for the user ?

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26% of our footways are in really good condition

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and 54% of network is in OK condition

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But…..

• 20% of the network is in a relatively poor state – it is

poor but not unpassable!!

• That is almost 500km of potential required maintenance

and safety concerns!!

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Aging Network!

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Utility trenches

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Cracked and crazed paving!

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Vehicle Overrun – often caused by misuse

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Tree Roots.

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Current investment!

• Member Led programme.
• 2012 – £247k
• 2013 – £100k
• 2014 – £2.5m
• 2015 – we are spending £1.8m
• This £4.67m has allowed investment on 117 footways

(about £40k a scheme!!).

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Predicted Footway Deterioration

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Where do we want to be. What should we expect?

Will aiming for perfection cost too much? How much?

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£12m a year for the

next 8 years!!!

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In reality

• A consistent investment over of £1.7m a year will help

us improve

• Anything less than £1.7m a year will see our network

deteriorate further!!

• Help us make a difference !!

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Transport for Buckinghamshire

Structures The forgotten asset?

Len Smith

Structures Team Leader

The Structures Team is responsible for:

• 374 Bridges
• 132 Culverts
• 52 Footbridges (Not Rights of Way)
• 27 Pedestrian Subways
• 7 Other Structures (Cattle grids, slipway & Marlow

Obelisk)

• 11 Pump Stations (Subways & Marlow Flood Relief)
• 100 Retaining Walls

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Structures are an Important Asset

• Key part of the highway network
• Often the forgotten asset - vehicles pass over often

without realising they are there.

• Sizes vary from 0.9m span up to 72m span.

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Structures Condition Measurement

• Inspected on a 2 yearly cycle
• Nationally agreed system –

condition scores determined for each structure.

• One score – BCIAVE – looks at the overall condition of

the structure.

• The second score – BCICRT – looks at the critical

element e.g. the beams supporting the road deck

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Structures Condition

• BCIAVE - our structures are

classed as being mainly in a good condition.

• However, looking at the critical elements (BCICRT) the

story is different.

• 33% of all structures (excluding retaining walls) are

classed as having insufficient maintenance funding.

• Ranging from V. Poor to Fair condition on the following

diagram.

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Structures Condition

585 Structures

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The Significance of the 33%

• Using the standards set out in the Nationally accepted

standard (Management of Highway Structure - Code of Practice)

BCICRT Condition Maintenance Funding (Code of Practice) Critical Stock Risk 18% Fair Historical maintenance works under funded and not managed in accordance with Code of Practice Some structure may represent a significant risk to public safety 13% Poor Historical maintenance works significantly underfunded and not managed in accordance with Code of Practice Some structure may represent a high risk to public safety 2% Very Poor Historical maintenance works grossly underfunded and not managed in accordance with Code of Practice Some structure may represent a Very high risk to public safety

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Expenditure / Backlog

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Backlog and Risk Management

• Current works backlog is valued at £4,670,000
• Based on the last 18mths - 10% are individual BCICRT

defects i.e. £467,000.

• Current approach - manage the associated risk by:

– detailed assessments and investigations – increasing inspections/monitoring – targeting expenditure on the greatest risks. – Introduction of temporary restriction

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Risk Management

• Abbey Way Elevated Road – Closure of Lane 1 to

protect parapet

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Potential Risks Due to Inadequate Maintenance

• Risk of injury or death to public.
• Increased ongoing maintenance costs.
• Increased risk of flooding.
• Delays to traffic due to repairs.
• Inconvenience to public due to diversions.
• Potential introduction of weight limits.
• Restriction to single lane and possibly traffic signals.
• In extreme cases collapse of structure causing significant

disruption.

• Increased monitoring/inspection costs.
• Disruption to utilities on bridges.

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Transport for Buckinghamshire

Intelligent Transport Systems (ITS) Keeping things moving

Tony Blackmore

ITS Specialist

What we do

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We monitor the use of the network to identify congestion, incidents

• r events

We provide information to travelling public In some cases we can even adjust timings of traffic lights

Our current asset

63 Junctions

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Traffic signals 8 Part time signals 120 controlled crossings 9 Bridge shuttles

Our current asset

49 Traffic monitoring cameras

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Other ITS assets 40 Journey time monitoring cameras 13 electronic message signs 21 Car park information signs

CCTV Rising Bollards

6 Bollard Access systems

Our current asset

80 Electronic bus timetable units

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53 Electronic bus stop displays 3 Information kiosks 2 Bus station systems (35 displays) Other ITS assets

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Why is it there

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• Safety
• To rebalance from a vehicle dominated flow
• Control software can improve capacity by up

to 20%

What we spend

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What we spend

Change to LED Remote monitoring & control

• All lamps changed from Halogen to LED

from 2008 - 10

• 85% reduction in power consumption
• At least 16 times longer service life
• Ability to check for faults from central control room
• Increasing number of problems can be resolved

immediately without having to send engineer to site

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What we spend

Currently 200 sets of traffic signals Expected service life 15 – 20 years Current end of life replacements 1 – 2 per year Currently 210 other ITS assets Expected service life 10 – 15 years Current end of life replacements Zero

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Effect of spending less

Aging asset Inefficient systems lead to congestion

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Effect of spending less

Increased isolation for an aging population Lack of access to those with mobility, sensory & cognitive impairment

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Transport for Buckinghamshire

Highways Drainage Managing surface water

John Gibbons

Operations Manager

Duties and Responsibilities

• Transport for Buckinghamshire has a responsibility to

maintain highway drainage assets and presently carries

• ut cyclical gully cleaning operations annually
• There are 75,129 gullies on the adopted highway which

are attended to each year

• We presently use three(3) gully emptying machines to

achieve this cyclical maintenance service

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Drain clearing (also called gully emptying)

• Drain clearing is undertaken to ensure

that surface water is removed from the carriageway as quickly as possible and not allowed to collect or penetrate the foundation of the road. In addition it is important that water is not allowed to stand on the carriageway and cause a road safety hazard.

• Drainage works such as grip

clearance, ditch cleaning, are included in the annual drainage programme.

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Winter Landscape Maintenance

• Once grass cutting is complete, we

direct our labour to carry out Winter Landscaping work

• This service includes cutting road

side grips and cleaning side entry gullies in advance of winter

• Grips are opened in order to direct

water off the carriageway and where possible to drain directly into adjacent road side ditched

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High Pressure Jetting

• Using a budget from a Capital Maintenance

programme we attend to problem sites where the main surface water drainage pipe may prove to be obstructed/blocked.

• We use a powerful machine (super sucker) to

rod the main carrier to free the pipe(s) of

• bstruction
• Water is forced with pressure using varying

size jetting hoses

• In addition root cutting is carried out where

possible to reduce invasive excavation

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Capital drainage budget

• The capital drainage budget is used when new assets

are added to the net work. This work includes

• New gully pot installation
• Installing a manhole on an exit or new drain carrier pipe
• Increasing the diameter of pipework to improve the

capacity of existing drainage system

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Ditch it Programme

• Following the extreme flooding over the winter of 2013-

14, the council decided to invest in undertaking ditch maintenance across the County. As a result of this many BCC owned ditches were identified as needing maintenance and therefore a comprehensive programme was put together.

• The programme of works started last year, a value of

£610K work achieved. A remaining budget of £190k is planned to take place this financial year

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Bore Holes

• We have a Capital Maintenance budget to bore holes in

existing soakaways

• The benefit is to drill a core to a subsoil strata (where

possible) which is more permeable. This may reduce the risk of localised flooding

The Existing Asset Register

• We do not have a comprehensive register and data

collection is on going. To date we recognise there are – 75,129 gullies – 15,000 Soakaways – 14 Balancing ponds – 1122 km of pipework – 944 km of ditches – 37,900 Inspection chambers

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Capital Budget for Highway drainage 2015-16

• High Pressure jetting = £ 198,637
• Capital Drainage = £489,518
• Ditch It programme =£190,000
• Borehole = £103,000
• Total budget spend equates to £981,155

Transport for Buckinghamshire

Ancillary Items Signing, lining and everything else

Dave Stewart

Schemes Delivery Manager

What are Ancillary Items?

• Signing
• Lining
• Studding
• Safety Fencing
• Guardrail
• Any other street furniture

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Ancillary items

Ancillary items

Facts and Figures

• 35,000 signs on our network (6,000 illuminated)
• 2,425,000m of road markings
• 3,000 words/symbols
• 410,000 road studs
• 52,000m of safety fencing
• 25,000m of pedestrian guardrail

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Ancillary Items – why are they important?

• Statute – standards which must be adhered to by law.
• Standards – good practice standards, national

accepted practices

• Safety – protection of travelling public
• Amenity – visual impact, quality of life, practicality

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The boring bits…..

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CONSPICUITY Clear and legible COMPREHENSIBILITY Ease of understanding CREDIBILITY Prompts action

Not so boring……

Signing

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Colour Contrast Reflectivity Conspicuity and legibility Design Placement Lighting Credibility

Signing

• Since its first edition in 1964 - major revisions to

TSRGD in 1975, 1981, 1994 and 2002

• 276 ‘approved’ traffic signs in 1964, 862 by 2002.

Growth in regulation is not sustainable

• Review 2008, DfT Policy Paper ‘Signing the

Way’, prompting TSRGD revision 2015

• Removes a lot of regulation and gives more

decision making power to Local Authorities

• De-regulates lighting requirements on signs
• Saves £690 per sign, and nationally £5.9m on

energy costs alone (TRL)

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Signing – lighting de-regulation

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Lining

• Good Practice based on DMRB/SFHW
• Regular survey of visibility/legibility/retro-reflectivity
• Rolling maintenance programme
• Avoid ad hoc replacements
• Thermoplastic with max 3 x overspray refresh
• Encourage innovation

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• Good Practice based on DMRB/SFHW
• Night inspection of retro-reflectivity
• 10% max failure on bends
• 25% max failure on straights
• Avoid ad hoc replacements
• Encourage innovation

Studding

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Safety Fencing (VRS)

• Critical for safety
• Complex design/construction
• Stringent standards
• Specification changes
• Bi-annual tensioning
• Structural testing
• Implementation of ‘new’ standards

99

Guardrail

• Effective in the right place
• Design standards
• Not a vehicle restraint
• De-cluttering

100

Avoid this….

Spend Profile

• Capital Investment / Revenue Budget

102

Where do we want to be?

103

Where might we be?

104

Where might we be ……

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