Innovative recycling behind £2.4m safety scheme

25/01/2019
Chris Ames

West Sussex County Council and contractor Balfour Beatty are using an innovative recycling technique on a road safety scheme that has itself been described as ‘agenda-setting’.

Roadside safety edges are being built on the A285 between Halnaker and Petworth to give drivers more chance of staying on the carriageway if they lose control of their vehicles, with road planings, soil and other materials recycled for use on the scheme.

West Sussex Highways project manager Simon Osborne said: ‘The new safety edges are created by planing and excavating a 1metre-wide strip along the existing carriageway and verge. But instead of the road planings, soil and other materials going to waste, they are taken to our highways depot at Drayton.

‘There they are processed to separate the various parts, including stone, sand and soil, put into a recycling machine and a binder added to the reusable material to harden it through a reaction with water.

‘This hydraulically-bound material is transported back for use in the construction to refill the trench before the new surface is laid.’

The council said that while traditional methods involve excavating to a depth of half a metre, the strength of the hydraulically bound material allows for a shallower depth of material, saving time and cost and reducing the risk of disturbing buried services, such as pipework, within the road.

Lloyd Allen, principal operations manager for Balfour Beatty Living Places, said: ‘We estimate a total of approximately 8,000 tonnes of material will be recycled over the duration of the A285 safety improvement scheme.

‘Through this new innovative recycling method, very little waste will be taken to landfill, significantly reducing overall waste disposal costs and environmental impact.'

From top left, roadside planings and other materials excavated from the A285 site are taken back to the depot and stockpiled ready for recycling; heaped-up planings, awaiting the recycling process; the crushing and screening equipment used to form correct-sized aggregates for the hydraulically-bound material (HBM); the plant used for grading and mixing / manufacturing materials into HBM; quality-control testing cubes of HBM to check for required strength; the HBM is delivered to the A285; it’s levelled and compacted; the binder course is applied and compacted; the finished product – showing the new roadside edge

The scheme started in October 2018 and is being funded through a £2.4m award from the Department for Transport’s Safer Roads Fund (SRF).

The fund was launched in November 2016 after the Road Safety Foundation published a list of the 50 most high-risk local authority roads. The A285 between Petworth and Chichester was identified as England’s most persistently high-risk road, attracting an immediate pledge from ministers of £1m for safety improvements, followed by a further £1.5m.

Last year roads minister Jesse Norman described the anticipated safety benefits of schemes funded under the SRF as ‘not only inspiring themselves but potentially agenda-setting for a next round of potential investment’.

West Sussex and other councils have used the International Road Assessment Programme (iRAP) methodology to address inherent risks under a safer systems approach.

The council said that more than half of the serious accidents on the A285 involve drivers leaving the road.

Improvements also include introducing a ribbed edge line, similar to those found on motorways and dual carriageways. This will introduce an audible and tactile warning to drivers if they leave their lane, the width of which will also be made more consistent as part of the scheme.

The work is concentrated in sections, focusing on 300m lengths at a time.

The council said that, subject to factors such as severe weather, the scheme is on course to be finished by April.

Highways jobs

Senior Traffic Engineer

East Riding of Yorkshire Council
£32,029 - £34,788 per annum
Currently seeking an enthusiastic and experienced individual to manage our Traffic Team. East Riding of Yorkshire
Recuriter: East Riding of Yorkshire Council

Ugobus Driver (multiple positions)

Essex County Council
Up to £18938 per annum
Please note that we have permanent, fixed term and relief contract opportunities on a part time, job share and flexible working basis. The salary is u England, Essex, Chelmsford
Recuriter: Essex County Council

Principal Transport & Infrastructure Planning Officer

Essex County Council
£52000 - £57570.0 per annum
Please note this is a two year fixed term contract with a potential for extension, subject to budget and workload. Job purpose Calling all transport P England, Essex, Chelmsford
Recuriter: Essex County Council

Food Safety Environmental Health Officer

Camden London Borough Council
£36,630 to £42,490
Seeking a highly motivated and experienced Environmental Health Officer to join our busy Food Safety team. Camden, London (Greater)
Recuriter: Camden London Borough Council

Policy Planner

London Borough of Richmond upon Thames and London Borough of Wandsworth
£25,327 - £36,486 depending on skills and experience
We have an exciting opportunity within the Spatial and Transport Planning service for 2 x Policy Planner roles... London (Greater)
Recuriter: London Borough of Richmond upon Thames and London Borough of Wandsworth

Highways Inspector

Cambridgeshire County Council
£19,554 - £23,836
Looking for candidates who have experience of highways maintenance and have a sound technical understanding of highways. Cambridgeshire
Recuriter: Cambridgeshire County Council

Street Services Recruitment Day

Royal Borough of Greenwich
Competitive Salary
This role involves collecting residents and business wheelie bins and waste containers you will work as... Greenwich, London (Greater)
Recuriter: Royal Borough of Greenwich

Assistant Tree Officer

Camden London Borough Council
£25,880 - £27,904
Looking for an assistant tree officer to join a busy Tree Section working with the most up to date arboriculture equipment’s and IT resources.  Camden, London (Greater)
Recuriter: Camden London Borough Council

Traffic Officer

Bedford Borough Council
£23,313 - £26,999 per annum
You will work as part of the Highways team providing specialist knowledge and advice on traffic management issues. Bedford, Bedfordshire
Recuriter: Bedford Borough Council

Vehicle Technician x2

Sandwell Metropolitan Borough Council
£24,313 - £28,785 per annum
Seeking to recruit two Vehicle Technicians, based at our Waterfall Lane Depot in Cradley Heath. Sandwell, West Midlands
Recuriter: Sandwell Metropolitan Borough Council

Senior Design Engineer - Guildford

Surrey County Council
£39,438 - £43,744 per annum
An opportunity has arisen within Surrey County Council's Highway Design & Delivery Team... Guildford, Surrey
Recuriter: Surrey County Council

Environment and Low Carbon Work Package Manager

Essex County Council
£38400 - £42420 per annum
Please note that this position is to be offered on a 3-year, fixed term contract.Interviews likely to be held week commencing 30th September 2019.Esse England, Essex, Chelmsford
Recuriter: Essex County Council

Director of External Operations

Somerset West and Taunton Council
£100,000
Somerset West and Taunton Council has been through a transformation that puts customers at the heart of everything we do. Taunton, Somerset
Recuriter: Somerset West and Taunton Council

Zero Emissions Network Officer

Tower Hamlets London Borough Council
£33,759 - £34,986
We are looking for an enthusiastic Zero Emissions Network Officer Tower Hamlets, London (Greater)
Recuriter: Tower Hamlets London Borough Council

Contract Supervisor

London Borough of Richmond upon Thames and London Borough of Wandsworth
£31,013 - £36,486 depending on skills, knowledge and experience
The role of Contract Supervisor (Waste and Street Cleansing) will require you to support ambitious plans to provide services for residents Richmond upon Thames, London (Greater)
Recuriter: London Borough of Richmond upon Thames and London Borough of Wandsworth

Flood Risk Manager

Birmingham City Council
£43,662 - £54,574
The role requires the post holder to be the lead professional for the Authority’s Flood Risk Management and drainage function Birmingham, West Midlands
Recuriter: Birmingham City Council

Head of Highways & Transport

Lewisham London Borough Council
up to £72,705
As our lead expert on highways and transport, you will set the direction and lead on all transport related matters Lewisham, London (Greater)
Recuriter: Lewisham London Borough Council

Assistant Director

Hounslow London Borough Council
Up to £82k
Working across a wide range of high profile direct services, the emphasis for this role is on partnership working. Hounslow (City/Town), London (Greater)
Recuriter: Hounslow London Borough Council

Director of Integrated Transport

Liverpool City Region
Salary up to £124,848
The Liverpool City Region Combined Authority is embarking on a search for an exceptional individual with the passion to deliver on our vision Liverpool, Merseyside
Recuriter: Liverpool City Region

Highways on Fridays

Latest Issue

latest magazine issue
  • HIghways Awards shortlist revealed
  • Equity in transport
  • DMRB updates
View the latest issue

Latest Video