Overheating roads 'a challenge for councils'

21/07/2022 | CHRIS AMES

Highway authorities will struggle to future-proof their assets as climate change leads to higher road surface temperatures, despite improvements in the performance of materials, a key sector figure has warned.

Following record-breaking temperatures this week, which saw road surfaces appearing to melt, Rick Green, chair of the Asphalt Industry Alliance, explained: ‘In extremely high temperatures the road surface doesn’t melt, but the bitumen in it can soften and the material particles become more mobile.

‘The effect is most exaggerated on south-facing gradients but is usually limited to the top surface and doesn’t generally affect the structural integrity of the road. However, in prolonged periods of hot weather where the road is exposed to slow moving or stationary heavy traffic, the risk of permanent deformation of the surface increases.’

He added: ‘In order to perform well across all seasons, an asphalt road has to be able to cope with the extremes of road surface temperature we might see, which, in the UK can range from +60°C to -20°C; a significant challenge for design engineers.

‘Ongoing research in modern road building materials is continuing to build both resilience and flexibility into the network, improving their performance across a wider temperature range.

‘But in a climate of increasing costs, as well as temperatures, and against a backdrop of constrained or reducing budgets, highway authorities face even more challenges to future-proof their assets.’

Last week the Road Surface Treatments Association said its members should advise their customers that using grit dust on the roads during high temperatures can help keep the road network from heating excessively.

Highways InProfile

latest magazine issue
Highways jobs

Civil Enforcement Officers x 2

£26,403.00 - £28,142.00, Grade 5, 37 hours, Permanent
Parking Services are looking to recruit 2 full time Civil Enforcement Officers to complement its existing workforce. Wakefield, West Yorkshire
Recruiter: Wakefield Council

Senior Street Cleanse Technician x 3 (CDC)

Grade 6 £25,981 - £26,815
We are about to embark on an ambitious programme of change in our city. Doncaster, South Yorkshire
Recruiter: City Of Doncaster Council

Highways Development Officer

£37,280 - £40,777
This is an exciting time for a talented, self-driven professional to join us in the role of Highways Development Management Co-ordinator. Gloucester
Recruiter: Gloucestershire County Council

Principal Highways Development Officer

£48,226 - £51,35
This is an exciting time for a talented, self-driven professional to join us in the role of Highways Principal Development Management Co-ordinator . Gloucester, Gloucestershire
Recruiter: Gloucestershire County Council

Street Lighting Project Engineer

PO2 - £41,442 to £44,331
Help us keep our streets safe, efficient and ready for the future Greenwich, London (Greater)
Recruiter: Royal Borough of Greenwich

Principal Engineer - Highways Development Management

£47,181.00 - £50,269.00, Grade 11, 37 hours, Permanent
We are seeking a dedicated Principal Highways Development Management Engineer to join our team. Wakefield, West Yorkshire
Recruiter: Wakefield Council

Highways Development Management Engineer

£32,061.00 - £46,142.00, Career Grade 7-10, 37 hours, Permanent
Do you want to join a team helping to shape the future of Wakefield through HIghways Development Management? Wakefield, West Yorkshire
Recruiter: Wakefield Council

Highways Project Engineer

£31,537 - £42,839 per annum
Would you like to be part of our friendly, welcoming Highways team, proud to manage all aspects of the highway network? Boroughbridge, York
Recruiter: North Yorkshire Council

Highways Project Engineer

£31,537 - £42,839 per annum
Would you like to be part of our friendly, welcoming Highways team, proud to manage all aspects of the highway network? Skipton, North Yorkshire
Recruiter: North Yorkshire Council

Technician - Highway Inspector

Grade 8 £29,719 - £31,691 per annum
Within the Highways Maintenance Team we are looking for an enthusiastic, customer focused and experienced person Derbyshire
Recruiter: Derbyshire County Council

Highway Design and Construction Manager

Grade N, scp50 £62,443 to scp53 £65,663 per annum, plus essential car user allowance
We embrace AI to enhance our operations and to innovate our services. Bolton, Greater Manchester
Recruiter: Bolton Council

Technician - Highway Inspector

Grade 8 £29,719 - £31,691 per annum
At Derbyshire, we have been on a journey to transform the way we deliver highway services. Derbyshire
Recruiter: Derbyshire County Council

Team Leader (Maintenance Operations)

Grade 10 - £48,226 - £51,356
Cardiff is growing faster than any other capital city in Europe. Cardiff (Caerdydd)
Recruiter: Cardiff Council

Highways Supervisor

£Competitive
We have a fantastic opportunity for a permanent Highways Supervisor Forfar, Angus
Recruiter: Amey

Tree Surveyor

£Competitive
We are excited to offer fantastic opportunities for Permanent Tree Surveyors Scotland
Recruiter: Amey

Chief Operating Officer – South West Wales Corporate Joint Committee

£Competitive
We’re looking for a bold, visionary leader to take on the role of Chief Operating Officer Carmarthenshire (Sir Gaerfyrddin)
Recruiter: Carmarthenshire County Council

Clerk of Works - Highways

£Competitive
We have a fantastic opportunity for a Clerk of Works to join our dynamic NMC SW Account team at Polmadie. Glasgow, Glasgow City
Recruiter: Amey

Highways Supervisor

£Competitive
We have a fantastic opportunity for a permanent Highways Supervisor to join our NMC NE account in Kinross. Perth and Kinross
Recruiter: Amey

Planner - Highways

£Competitive
We have a fantastic opportunity for Permanent Planner – Highways to join our NMC SW Account. Glasgow City
Recruiter: Amey

Highways Maintenance Manager

£51,356 - £55,539 per annum
We are looking for an experienced Engineer to join the team as a Highways Maintenance Manager Selby, North Yorkshire
Recruiter: North Yorkshire Council
SUBSCRIBE NOW

Latest Video

Subscribe to Highways today to ensure you keep your finger on the pulse of everything happening in the UK road network throughout the year.

SUBSCRIBE NOW