hounslow highways - · pdf file28.02.2017 · 5 progress across the borough end of...
TRANSCRIPT
Hounslow HighwaysSpring Grove & Osterley Residents Association meeting Tuesday 28th February 2017
Timothy Hurley
Roads & Pavements
www.hounslowhighways.org
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Services
• Routine Maintenance of assets
• Emergency and Winter Services
• Street Cleansing
• Illegal Waste Removal
• Tree Maintenance and
Grass/Horticulture
• Policy Setting and Highway Strategy
• Management of Inventory
• Highway Safety Inspections
• Street Works – Permits and
Licenses
• Environmental Education and
Management
• Enforcement for Environment and
Highway offences
• Management of Public Claims
• Illegal Crossovers
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Condition Improvement Progress so farMilestone 8 (4 Years) – Borough Wide
Carriageways
• 952 Schemes
• 186 Km of roads
Footways
• 822 Schemes
• 205 Km of footways
Street Lighting
• 14,357 new Street Lights replaced
• 700 remaining lights to complete
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Progress across the boroughEnd of Year 4 (Milestone 8)
Roads and Footway Improvements
• The condition of roads and footways is measured every
year through detailed technical evaluation by a third-party
survey organisation
• The “gap” between current condition and the target is
represented by the Network Performance Gap (NPG)
• The overall target for a compliant network is 0.5 NPG
• The contract started at NPG of 4.58 and is reduced by
each new road or footway completed
• At the end of Year 4 (Milestone 8) the NPG was 0.85
• This represents a 81% improvement in overall condition
– ahead of the contract improvement profile
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• The LBH road infrastructure asset value increased by £71 million to £778
million in the last financial year.
• Road and Footway works continue through years 4&5 to achieve the
required level of compliance
• Capital works will also take place in the following 20 years based on the
condition of the network each year
• Day to day repairs that qualify for immediate action will continue to be
assessed and actioned.
• Hounslow Highways remains responsible for all streets and their condition
through until 2037
Investment Programme
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Managing the Infrastructure
• Highway Safety Inspections
• Inventory Updates (269,284 assets)
• Policy setting and Network Compliance Audit
• Street Works – Licenses and Permits (LoPS)
• Condition Surveys and specifications
What is a Pothole ?
• Hounslow Highways has adopted dimensional
definitions for potholes as part of the Safety Inspection
Strategy and Plan
• Response times and treatment of potholes is based on
importance of Carriageways, Footway, Cycle lanes
and an assessment of risk
• Having assessed and categorised the risk impact and
risk probability, the risk matrix is utilised to determine
an appropriate response
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Potholes identified/ repaired by year
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0
50
100
150
200
250
300
1 3 5 7 9 11 1 3 5 7 9 11 1 3 5 7 9 11 1 3 5 7 9 11
2013 2014 2015 2016
CW08 - CW: Pothole
Linear (CW08 - CW:Pothole)
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When do we repair- Carriageways?
Table: Investigatory levels on Carriageways
Defect Type
Investigatory level
Crossings, Junctions
and in or adjacent to
the Kerb
Other Locations on
Link 1, 2, 3, and 4 Link 5
Pothole/Spalling 40mm depth 50mm depth 75mm depth
Crowning 50mm depth 50mm depth 75mm depth
Depression (area 2m2) 50mm 50mm 75mm
Gap/Crack 20mm depth (20mm
wide)
20mm depth (20mm
wide)
30mm depth (20mm
wide)
Sunken and Raised
Ironwork
20mm level difference 20mm level difference 25mm level difference
Level Difference within
Ironwork Framework
15mm 15mm 15mm
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Defect Type
Investigatory level
Place A & B Place C Place D Place E & PROW
Hierarchy 1
Trip/Pothole 15mm depth 20mm depth 25mm depth 25mm depth
Rocking Slab/Block 15mm vertical
movement
20mm vertical
movement
25mm vertical
movement
25mm vertical
movement
Open Joint 20mm width x 200mm length (min depth 20mm)
Tree Root Damage 15mm trip 20mm trip 25mm trip 25mm trip
Sunken and Raised
Ironwork
15mm level
difference
20 mm level
difference
25mm difference 25mm difference
Dislodged Kerb 50mm
horizontally
50mm horizontally 50mm horizontally 50mm horizontally
Loose/Rocking Kerb 15mm vertically 20mm vertically 25mm vertically 25mm vertically
Missing Kerb Yes
Table: Investigatory levels on Footways
When do we repair- Footways?
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Risk Matrix
Probability
ImpactVery Low (1) Low (2) Medium (3) High (4)
Negligible (1) 1 2 3 4
Low (2) 2 4 6 8
Noticeable (3) 3 6 9 12
High (4) 4 8 12 16
Response Category Cat 2 Low (L) Cat2 Medium (M) Cat 2 High (H) Cat 1
Priority Risk Factor Response
Priority 1
(Category 1 defect)
12 to 16 Make safe within 1 hour and complete temporary repair
within 24 Hours, then complete a permanent repair within 28
days
Priority 2 Cat2 H 8 to 11 Repair within 28 days
Priority 3 Cat2 M 5 to 7 Repair within 56 days
Priority 4 Cat 2 L 1 to 4 Repair during next available programme
Works in Osterley & Spring Grove
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2013-2016 No. RSL Length (km)
109 23.5
CW 47 12.2
FW 62 11.3
2017 No. RSL
CW 11
FW 17
Lighting in Osterley & Spring Grove
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• 2013 – 2016
• Osterley + Spring Grove – 983 LED lighting points installed
• 2017
• 0 remaining - [Not including Heritage Lighting]
Energy savings for the borough
• HH have reduced the energy consumption for our Street Lighting assets by
55% since the contract started. HH are by far the leading London Borough in
this aspect, and in turn we are reducing our carbon footprint.
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Tree Works
• Current street tree stock is 11,398 trees
• All street trees are surveyed every three years as part of a
rotational cycle of one third per year.
• Survey used to establish maintenance requirement for each
tree.
• Maintenance regime includes
Cyclical pruning
Clean Sweep
Large plane and lime tree maintenance
• Felling and replanting Dead, Dying, Diseased and Dangerous
Working with the community
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• School visits
• Community clean-up days
• Graduates and apprenticeships
• Volunteer programme – Lay
Assessors
• Local workforce
• Junior Citizens
• Hounslow Business Awards
• Enabling Enterprise
• Joint task force
Reporting Issues on
Hounslow Highways website
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• Why is it important to report issues through our website?
- 24/7 monitoring
- Immediate response to Cat 1 hazards
- Immediate assignment to the correct team/officer
- Enquiries do not get lost
- Customers get a reference number
- Data allows us to monitor trends and know which services to provide
Lay Assessor Volunteers
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• Lay Assessor programme started November 2014
• 10 Lay Assessors (each representing a ward)
• Site visits/ Monthly coffee mornings
• Additional contact i.e. user acceptance testing for website, meetings with the IC
(who signs off our schemes)
• Always looking for new ideas to refresh the programme
• Interested people should email [email protected]