MPs call for switch to warm mix to cut costs and emissions

03/09/2019
Dom Browne

Highway authorities could be saving millions and reducing CO2 emissions if they switched to warm mix asphalts (WMA) on road construction and maintenance, MPs have said.

Members of the All Party Parliamentary Group (APPG) on Highways have released a report on the environmental, safety and performance benefits of warm mixes.

WMA can be produced at temperatures up to 40C lower than traditional hot mixes, which are often laid at 190C.

The warm material can reduce CO2 emissions by around 15%, depending on product and plant. It also cools quicker so jobs can be open to traffic sooner and cuts fumes in half for every 10C reduction in temperature, creating a safer working environment.

Red tape and a reluctance to try new ideas are said to be the blockers to a wider roll-out.

The material already accounts for almost 40% of production in the USA and over 15% in France but represents just 4% in asphalt production in Britain.

If all asphalt production in Great Britain were switched to warm mix it would save, at least 61,000 tonnes of CO2 – the equivalent of almost 300 million miles of car journeys, the report states.

Highways England - the national roads operator - estimates that an increase in shift outputs of 20% could be provided by using warm mixes on its network saving up to £70m a year.

Richard Hayes, chief executive of the Institute of Highway Engineers, said: ‘the use WMA of within the UK will significantly support the reduction in the carbon footprint of road surfacing. However, this is not the only benefit as warm mixes allow the new surface to return to traffic use much earlier thus reducing delays.’

The report states: ’sticking with the status quo means that the specifications and guidance used in contracts by highways authorities continue to lag behind advances in product technologies - requiring expensive and prolonged retendering or "departure" processes to secure approval for warm mix asphalts’ use.’

In July 2019, Highways England published clauses in its specifications for highways works to explicitly include WMA, which the APPG said was a ‘positive step, but more needs to be done to remove the remaining practical and procurement barriers that prevent existing client support for warm mix asphalts performance leading to its broader adoption.’

Highways jobs

2 x Environmental Health Officer (Food, Health & Safety)

Dacorum Borough Council
£31,218 to £39,786 (Inclusive of London Fringe Weighting) + Car Allowance   
Seeking to appoint 2 x fully qualified Environmental Health Officer’s to work within our... Hertfordshire
Recruiter: Dacorum Borough Council

Senior Traffic Engineer

East Riding of Yorkshire Council
£32.029 - £34.788
We seek an enthusiastic and experienced traffic engineer to manage our Traffic Team. East Riding of Yorkshire
Recruiter: East Riding of Yorkshire Council

Head of Asset Management (Regeneration & Environment)

Rotherham Metropolitan Borough Council
£55,856 - £59,773
We have a current vacancy for the role of Head of Asset Management, and we are looking for a dynamic individual to lead the service Rotherham, South Yorkshire
Recruiter: Rotherham Metropolitan Borough Council

Environmental Education Assistant

Brent Council
£22,779 - £24,030 p.a. inc. (pro-rata)
Looking for instructors who complement our enthusiastic, motivated and friendly staff team. Brent, London (Greater)
Recruiter: Brent Council

Structures Asset Manager

Kent County Council
£52,713 - £58,774 per annum (salary dependent on experience) 
If you have the ability to succeed in either of these roles and are able to prioritise competing demands and objectives, coupled with... Ashford, Kent
Recruiter: Kent County Council

Structures Senior Engineer

Kent County Council
Starting salary £33,082 per annum
Providing engineering support for maintenance of highway structures, liaising and working closely across KCC. Ashford, Kent
Recruiter: Kent County Council

Development Management Engineer

Warwickshire County Council
£37,849 - £39,782 per annum
The successful applicant for this post will be capable of taking the lead on work within the team associated with... Warwickshire
Recruiter: Warwickshire County Council

Permit Officer – Place

Enfield London Borough Council
£27,228 - £29,241
You will have the ability to understand and learn relevant legislation and be able to work on your own initiative but also work as part of... Enfield (London Borough), London (Greater)
Recruiter: Enfield London Borough Council

Senior Policy Planner

London Borough of Richmond upon Thames and London Borough of Wandsworth
£32,643 – £45,704 depending on skills
Are you looking for working arrangements that enhance your work-life balance? London (Greater)
Recruiter: London Borough of Richmond upon Thames and London Borough of Wandsworth

Strategic Manager Highways and Transport

Isle of Wight Council
£65,620.00 to £70,915.00
Are you are looking for an ambitious and rewarding career move to one of the best places to live and work in the country? Isle of Wight
Recruiter: Isle of Wight Council

Community Services Manager

Copeland Borough Council
Competitive Salary
Looking for an energised and enthusiastic candidate to lead and focus the service through the challenges set by the Resources and Waste Strategy. Moresby, Whitehaven
Recruiter: Copeland Borough Council

Highways Infrastructure and Maintenance Manager - Highways Network

Bridgend County Borough Council
£37,813 - £40,760 per annum
An exciting opportunity has arrived inside the Highway Asset Maintenance Team within the Communities Directorate. Bridgend (Pen-y-bont ar Ogwr)
Recruiter: Bridgend County Borough Council

Business Support Officers - Transport Team (2 Jobs)

Kirklees Metropolitan Council
£19,554 - £21,166
Within the Transport Team you will be required to work flexibly in accordance with the needs of the service, which can men... Kirklees, West Yorkshire
Recruiter: Kirklees Metropolitan Council

Transportation Planning Manager

Brent Council
£55,638 - £58,779 p.a. inc.
ou will have an excellent knowledge and understanding of transport policy at both local and national level. Expertise of both people and... Wembley, London (Greater)
Recruiter: Brent Council

Commercial Contract Supervisor

Wirral Borough Council
£30,507 to £32,878
No holding back. No excuses. Just change Wirral. Wirral, Merseyside
Recruiter: Wirral Borough Council

Technical Officer – Pest Control

Kirklees Metropolitan Council
£19,554 - £23,836
This job is temporary for up to 11 months from the date of appointment to cover the absence of the current post holder. Kirklees, West Yorkshire
Recruiter: Kirklees Metropolitan Council

Divisional Director Neighbourhoods & Sustainability

Glasgow City Council
£83,708 - £95,232 (LDR3a, Grade 11)
This innovative role will contribute to the Council Strategic Plan Theme of A Sustainable Low Carbon City Glasgow, Glasgow City
Recruiter: Glasgow City Council

Business Support Officer - Bereavement Services

Kirklees Metropolitan Council
£18,795 - £19,171
You will be required to work front line with customers who are ordering memorials, our customers may be... Kirklees, West Yorkshire
Recruiter: Kirklees Metropolitan Council

Principal Transport Manager

Be First
Competitive Salary
As our Principal Transport Manager, you will deliver the Local Implementation Plan, ensuring the £2.4million TFL budget is used effectively London (Central), London (Greater)
Recruiter: Be First

Highway Operations Manager

Croydon London Borough Council
£43,590 - £45,585
We are seeking an enthusiastic, motivated and well organised highway operations manager Croydon (City/Town), London (Greater)
Recruiter: Croydon London Borough Council

Highways on Fridays

Register now!

Latest Issue

latest magazine issue

Valuing our roads: What is a network worth?

Also inside:

Traffex review 

Diary of a flood.

Beautiful roads

Live Labs exclusive briefing 

View the latest issue

Latest Video