Smart motorways 'less safe to save costs'

21/06/2021 | CHRIS AMES

Highways England has been criticised for drawing a ‘false equivalence’ between different types of hazard on motorways in assessing the safety of different smart motorways.

Sarah Simpson, a transport planning expert at Royal HaskoningDHV, appeared at a hearing of the Transport Select Committee with experienced traffic control technology engineer Mike Mackinnon and Professor Metz, honorary professor at the Centre for Transport Studies, University College London and a former chief scientist at the Department for Transport.

In March, Ms Simpson published a report on smart motorways, commissioned by law firm Irwin Mitchell, which represents the family of Jason Mercer who died while driving on an all lane running section of the M1.

She told MPs: ‘It is quite clear from my review of a wealth of documents, spanning back to 2000, and the 10-year plan that was written then, that the overarching factors that were involved in the decision to move from a dynamic hard shoulder smart motorway to an all-lane running motorway were predominantly focused on cost savings.

‘That is really evident in the national infrastructure plan that was issued in 2011 and consolidated in a document that examined the spacing of emergency refuge areas that was published in 2012. That specifically talks about the opportunity, because smart motorways were “very safe”, to design them to be less safe in order to save costs.’

She added that documents showed that not all of the hazards presented in an all-lane running motorway have been specifically dealt with in design.

‘Instead, a theoretical approach has been taken, looking for mathematical balance. That has drawn, effectively, a false equivalence between different types of hazard on the motorway, rather than looking to deal with specific hazards through the design process.’

Mr Mackinnon told MPs that he would also break down specific risks and would ‘query the data’.

He said: ‘Questions I would ask would include: how many accidents have occurred because there was no hard shoulder, and how many of them were actually fatalities? What is the percentage compared with general accidents?

‘General accidents on a motorway—at least in my understanding—are random. They are due to vehicles breaking down and drivers making mistakes. These accidents are due to a vehicle or a driver in a situation with no safe haven. You have people getting out of cars. How do you get disabled people out of cars? All of those issues should be somewhere in the safety case.’

Mr Mackinnon was asked by committee chair Huw Merriman whether regulator the Office of Rail and Road has ‘done a good enough job’ on safety? He replied: ‘No, I don’t think so.’

An ORR spokesperson told Highways: 'ORR is not the safety regulator for England’s strategic road network. ORR monitors Highways England’s performance against the delivery of the government set Road Investment Strategy.

'In our safety monitoring we aim to go above a backward looking approach and have undertaken research projects that provide Highways England with recommendations for how it can deliver better safety outcomes for road users.'

Professor Metz was asked by Ben Bradshaw MP whether his research showing that smart motorways encourage use by local traffic might ‘slightly play into the Government’s hands’ because motorways are safer than local roads.

He replied: ‘The presumption in that question is that there is a fixed amount of traffic and that, if it is shifted to a safer road, it will be safer. But there is not a fixed amount of traffic.

‘If we take traffic off local roads through a diversion, there are plenty of suppressed trips, so to speak, which will come in and take up the space. I would not expect there to be a net saving or a net benefit in terms of accident reduction through diversion.’

A later witness, Kate Carpenter, representing the Chartered Institution of Highways and Transportation (CIHT), told MPs: ‘The actual safety performance in the most recent five years’ data shows that all forms of smart motorway—controlled motorway, dynamic hard shoulder and all-lane running - have a lower collision rate than a conventional motorway with a hard shoulder.

‘That might be counterintuitive, but that is the finding at the moment. Therefore, CIHT supports them, provided the environmental and economic case is clear.’

Ms Carpenter’s reference to ‘the finding at the moment’ appears to reflect the fact that more recent data has shown the fatality rate of all lane running schemes overtaking conventional motorways.

As Highways has reported, the only published five-year post-opening study of a smart motorway scheme shows its safety record deteriorating as traffic levels increased.

Highways England has so far refused to publish further long-term studies, raising fears that they may not be made available to the inquiry.

Highways InProfile

latest magazine issue
Highways jobs

Traffic Management Technician - WMF2240e

£28,598 - £29,540
Westmorland and Furness Council is seeking a committed and technically capable individual to join our Traffic Management Team Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Senior Technician-Road Closures

£35,422 - £38,730
The Network Planning division is seeking to appoint someone who is enthusiastic and a team player Derbyshire
Recruiter: Derbyshire County Council

Technician - Road Closures (2 Posts)

£29,719 - £31,691
The Network Planning division is seeking to appoint someone who is enthusiastic, an excellent team player Derbyshire
Recruiter: Derbyshire County Council

Structures Inspector

£Competitive
We are excited to offer a fantastic opportunity for two Permanent Structure Inspectors to join our dynamic SBIM team Bristol
Recruiter: Amey

Highways Maintenance Operative

£Competitive
We have fantastic opportunities for a permanent Highways Maintenance Operatives Kettering, Northamptonshire
Recruiter: Amey

Site Manager

£Competitive
We are excited to offer a fantastic opportunity for a Permanent Site Manager Bristol
Recruiter: Amey

Principal Commercial Manager

£Competitive
The SBIM contract involves delivering inspection and maintenance programmes for National Highways Bristol
Recruiter: Amey

Senior Commercial Manager

£Competitive
We are excited to offer a fantastic opportunity for a Permanent Senior Commercial Manager Nottingham, Nottinghamshire
Recruiter: Amey

Highways Maintenance Operative

£Competitive
We have fantastic opportunities for a permanent Highways Maintenance Operatives. Northampton, Northamptonshire
Recruiter: Amey

Managing QS

£Competitive
In this role, you will support the Senior Commercial team in the end to end commercial process for the Area 12 contract. Yorkshire and the Humber
Recruiter: Amey

Highways Inspection Officer

£32,962 - £36,791 per annum
We have an exciting opportunity for a Highways Inspection Officer to join us! Windsor, Berkshire
Recruiter: The Royal Borough of Windsor & Maidenhead

Highways Technical Assistant

£29,064 - £31,537
Are you looking for a varied role in a dynamic and innovative team environment that can make a real difference to North Yorkshire’s highways? Leeming Bar, Northallerton
Recruiter: North Yorkshire Council

Street Lighting Electrical Inspector

£34,434 - £38,220 per annum
Do you hold an ONC in electrical engineering or City & Guilds Electrician? Northallerton, North Yorkshire
Recruiter: North Yorkshire Council

Senior bridge Engineer - WMF2212e

£47,181 - £48,226
You will be the key responsible engineer for this area and will also provide technical advice and guidance to our team Cumbria / Various
Recruiter: Westmorland and Furness Council

Civil Enforcement Officer - WMF2221e

£28,598 - £29,540
Are you seeking an active and challenging role, part of a friendly and welcoming team? Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Bridge Engineer - WMF2219e

£42,839 - £44,075
We are currently seeking to recruit an experienced and enthusiastic Bridge Engineer Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Senior Public Transport Officer

£42,839 - £46,142
We are looking for an experienced public transport professional to become our Senior Public Transport Officer. Northamptonshire
Recruiter: North Northamptonshire Council

Principal Transport Planner (Strategy) (Fixed-Term)

£48,226-£51,356
We are looking for an experienced professional to join as a Principal Transport Planner (Strategy) Northampton, Northamptonshire
Recruiter: North Northamptonshire Council

Mobile Street Scene Operative

£24,796 to £25,989 per annum
The Waste and Street Scene department requires enthusiastic and committed mobile street cleansing operative. Northallerton, North Yorkshire
Recruiter: North Yorkshire Council

Senior Technician - Highways Design (2 Posts)

Grade 10 £35,422 - 38,730 per annum
An exciting opportunity has arisen within the Professional Services Section Derbyshire
Recruiter: Derbyshire County 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