Introduction
Streetworks are vital. Installing, repairing and replacing utilities often requires digging up the roads. Yet coordinating streetworks often seems strangely difficult. The disruption they cause often seems out of proportion to the work required. They frustrate citizens, businesses and elected leaders - leaving many people wondering if the system could be improved.
This report provides an overview of emerging and best practice in streetworks.
It is aimed at councillors who want to understand the context on streetworks, and explore what their authorities can do differently to reduce disruption.
What are streetworks?
‘Streetworks’ is a catch-all term for work on the roads. This includes installing and repairing equipment, under and above street level.
Gas, water, electricity, broadband, electric vehicle and telecoms networks are the main infrastructure services requiring streetworks. Streetworks are usually carried out by the companies that run these services.
‘Roadworks’ technically means repairs to the road itself. The word is often used to mean any streetwork.
A highways authority is the organisation responsible for maintaining a public road. This varies across the country. In most of England, National Highways is responsible for motorways and major roads, and County or unitary authorities are responsible for other roads.
Policy context
Streetworks are governed by two main sets of legislation: roads, and utilities.
The New Roads and Street Works Act 1991, Traffic Management Act 2004 and Highways Act 1980 are the most important laws setting out who is responsible for streetworks and how they are managed. This gives highways authorities responsibility for coordinating streetworks.
Legislation governing the operation of electricity, water, gas and telecommunications gives those utilities the right to undertake streetworks.
Other organisations do not have the right to undertake streetworks but can apply to do so. This includes housing developers, some electric vehicle infrastructure companies, and private landowners.
As well as legislation, a range of technical guidance covers the design, delivery and guarantee of streetworks - such as the Specification for the Reinstatement of Highways, known as SROH, or the safety code of practice known as the ‘Red book’.
Policy is changing. Infrastructure is a major theme of the government’s Growth Mission, emphasising the role of both roads and utilities in underpinning a strong economy. New fines and penalties for utilities are coming in 2025, and policy on the roll-out of electric vehicle (EV) charging infrastructure is under discussion.
Why is demand for streetworks increasing?
Demand for streetworks is going up - with a 30% increase in utility company works over the past decade. This is due to:
- Ageing infrastructure. Much of the UK’s longer-established infrastructure requires constant maintenance. Metal gas pipes are being replaced across the network by 2031. Many old water and sewage pipes are being replaced.
- New energy infrastructure. EVs require new cables and infrastructure under roads and pavements. Some new mobility, heating and power systems can require new underground works.
- Connectivity. New broadband services can require new underground cables.
- Increased stress on roads. Overall car ownership is rising, and cars are generally heavier. This leads to increased wear.
- Streetworks creating roadworks. Studies suggest that opening up a trench can reduce the lifespan of a road by 17%, meaning the more streetworks that take place, the more likely it is to require further works.
- Reduction in local government budgets. Historically, local authorities might ignore badly-finished streetworks by utilities, and simply fix the road themselves. Now this is not a financially-viable option.
How much do streetworks cost?
Streetworks have a complex range of costs and benefits.
Upgrading and maintaining utilities is a foundation of economic growth. There is no single estimate for the economic value of streetworks in supporting this agenda: but no-one doubts that high-quality, reliable networks and services are essential for consumers and businesses.
Costs of streetworks include the direct costs, and wider impact through disruption.
Streetworks’ direct costs are significant, and can push up the cost of utilities. One estimate puts streetworks as 70% of the cost of new broadband infrastructure, if utilities choose to bury infrastructure.
Wider costs have different estimates. The Department for Transport estimates that streetworks cost the UK economy around £4 billion a year through delays and congestion. Bus operators face increased delays and diversions. This can create extra costs to maintain service levels: one bus firm reports it costs up to £10 million a year in Leeds to reduce the impact of city-centre works, for example.
Other effects are hard to quantify nationally, but have a clear impact at local level. There is increasing criticism, for example, of ‘street scars’ - where a contractor leaves behind an ugly, inappropriate surface instead of reinstating a like-for-like material. This speaks to the strong evidence that pride of place and economic confidence rests on a high-quality public realm, and is undermined by poor-quality streets and buildings.
Why is it so hard to coordinate streetworks?
Councillors will be familiar with complaints about streetworks being badly-planned. But often citizens are unaware that this is outside local authorities’ control.
Planning and sequencing streetworks is difficult due to a combination of legal, market and capability factors.
Legislation and governance
Legislation and governance makes it hard to coordinate streetworks thanks to:
- The number of organisations wanting to do work. A wide range of organisations have the legal right to undertake streetworks with separate permits. In the UK these utilities are privatised industries with a diverse range of companies. They have no requirement to work together.
- Weak incentives to coordinate. Fixed penalty notices can be issued for incorrect end dates on permits, failure to notify authorities of works, and other process failures. There are also charges specifically for overruns, known as Section 74 fines. The fines are small and have not kept pace with inflation. When streetworks are such a high cost anyway, there is a strong incentive to carry out works in the quickest and cheapest way, and treat any fines as a cost of doing business. There is no strong incentive to work together to reduce overall disruption to road users.
- Strong incentives to declare work ‘emergencies.’ Utilities firms have their own planned works schedule, but may have little reason to share those plans. For example, if they have important work that needs to be done within 2-3 weeks, they can wait until the works start and then declare them emergency works (which have separate rules), rather than alert authorities in advance.
- No clear regulator for streetworks. Communications, energy and water all have separate regulators. In general streetworks are a low priority for them, compared to the cost of services to consumers, safety and market competition.
- Competing objectives within government. Utilities provide an essential service. Many places are committed to the policy goals of faster broadband, more EV charging, and infrastructure-led economic growth. These goals can conflict with goals of reducing disruption and making public transport more reliable.
- Weak regulatory tools. Most authorities now run permit schemes. These allow them to refuse work. But utilities firms have the legal right to undertake work, and may determine works to be emergencies if denied permits. Compliance practice varies and often councils have limited inspection resources to check if companies met permit conditions. Permits are rarely applied for more than a few months in advance. All of this means permits are a rebalancing of power towards authorities, but have significant limits too.
Market structures
Utilities firms vary significantly. Some firms’ practices make it harder to plan streetworks including:
- Choices over infrastructure types. Digging a trench is often more expensive than running wires, or sharing ducts with other services. Most companies default to doing it anyway, through a combination of risk-aversion and wanting to protect infrastructure by burying it, and bias to established ways of doing things in design and delivery.
- Differences in newer industries. Established utilities are regulated, are typically large listed firms, and have been maintaining infrastructure for decades. New types of infrastructure such as EVs and internet firms are much newer. They may have less understanding of established streetworks practice. Their business models may be based on investor-funded infrastructure to win large market share before becoming profitable, creating a strong incentive to act quickly and alone.
- Subcontractors may vary in quality. Some may be paid by the metre or by time, giving them an incentive to increase the scale and scope of work. Subcontractors are often smaller firms, which can reduce economies of scale, quality assurance processes, and innovative capacity. Contracts can sometimes devolve all responsibility for quality to subcontractors, meaning commissioning firms lose any strong incentives to maintain quality.
- Planning cycles. Few companies have multi-year budget planning cycles. They may have asset management approaches which show them required work in 12+ months’ time, but do not know when exactly they will happen.
- Spending controls. Capital spending controls in utilities firms can incentivise constant repairs of infrastructure, rather than replacement - which would be more invasive but overall less disruptive. Fines can be factored in as a minor cost.
Skills and capabilities
Streetworks require engineering, urban design and management knowledge. Skills and capacity gaps include:
- Staff shortages. Contractors’ industry bodies report workforce shortages, reducing their ability to plan ahead and on occasion slowing down work.
- Mapping. The UK’s underground infrastructure is being brought into a single mapping tool, discussed below. But right now it is often poorly mapped - or not mapped at all. Sometimes it is not clear who owns what. This slows down planning and undertaking work. The Department for Transport reports that workers wait on average 6 days to find out who owns infrastructure.
- New technical situations. Individual places have unique features such as rock types, water flows, archaeology or historic underground structures. This can create unique and time-consuming problems to solve.
- Local authority capacity. Many councils have limited budgets to cover large areas. National policy can sometimes limit their options, such as mandating certain levels of funding specifically for potholes instead of broader streetworks. Streetworks teams can sometimes be separate to transport and procurement colleagues who want to adopt new innovations in road engineering.
- Early-stage technology. There are promising technologies - but generally at an immature stage. This is discussed more in section 3, below.
Streetworks coordination: a question of incentives
Overall, streetworks can be seen as a problem of misaligned costs and benefits.
We all benefit from safe and reliable utilities. These benefits are well-understood.
But streetworks also create costs for road users, public transport operators, people with limited mobility, and local residents. Those costs are dispersed. The organisations digging up the road do not feel those costs.
Put simply, lots of organisations are allowed to dig up the road, and the incentives for them to coordinate with each other are weak.
What innovations and technology in streetworks could help?
Technology could help improve many different aspects of streetworks.
In particular it can help to:
- Prevent streetworks in the first place, through better monitoring, new types of material, and management of infrastructure
- Plan streetworks more effectively - from mapping the physical location of underground infrastructure, to software to plan works.
- Provide streetworks in faster, more efficient or less intrusive ways, from tools for teams on the ground to better information to the public.
Six technologies councillors should know about
1. Public systems for live disruption data, approval and mapping
There are three government-backed technology systems in development:
- Street Manager is the platform used by anyone planning or managing roadworks. Its data can be used by other organisations, such as technology firms, to see where roadworks are planned. It was originally launched in 2019. Most people in the streetworks sector think the tool was limited at first, but has gradually improved its capability and ease of use. The Department for Transport has a roadmap for adding further functions.
- The National Underground Asset Register is a single database of all the infrastructure in the UK underground, with locations, age and type. This is recently live and available across the country, with more organisations and asset owners uploading data.
- Traffic Regulation Orders (TROs) are being digitised. TROs are the individual notification that traffic is being rerouted or delayed. A consultation in early 2025 proposes a new requirement on authorities. They will have to make TROs available in a digital format. This will, in time, mean there is a single standardised database covering all new road closures, parking bays and cycle lanes. This will be made available to app developers so that any mapping or satnav tool can show real-time information on changes.
These systems are not yet mature. They are also standalone: Street Manager and NUAR do not currently interact or harmonise their data. But if they are integrated and continue to be developed, they create the possibility of a single data system on streetworks, infrastructure, and live updates in the next few years.
2. Live communications for teams conducting works
Everyone accepts that some work on the roads is inevitable. But poor communication about work makes it harder for businesses, drivers and transport operators to plan.
Real-time data on where and when works are planned could address this. But plans change - works may start late, finish early, or not take place at all. On-the-ground teams need to be able to alert their managers, and public authorities, to the real situation.
Mobile apps have been developed to meet this need, allowing teams to take photos of works, look up compliance standards, and confirm jobs have been started or finished. Most major engineering contractors use some kind of app. Some allow teams to input live location data. This helps improve data accuracy on underground infrastructure - one company claims it reduced gas pipe strikes by 80% by using an app.
3. Platforms to manage approvals, public communication and planning in one place
Software platforms are already available which offer planning and information in one place. These often take data from Street Manager, and add wider transport management, communications and permitting for utilities, public communication and management of authorities’ own infrastructure into a single system. This streamlines all the relevant data into a single package, allowing for automatic updates and seamless communication.
4. Infrastructure without the digging
A range of techniques have been invented to avoid having to dig up the roads.
Instead of installing a new pipe in a fresh trench, a pipe can be forced or dug through from a hole at one end. This is known as pipe jacking, pipe ramming or microtunnelling.
‘Keyhole’ approaches to maintenance and repair are similar. These use tools such as sensors, robots or remotely-operated equipment to inspect and fix underground infrastructure, without requiring a trench.
5. New types of road
Streetworks typically require digging a trench because 95% of the roads in the UK are made of asphalt. New types of material are under development which might change this.
‘Self-healing’ concrete has been globally hyped, and one of the most significant trials to date was in the UK.
In other countries such as the Netherlands, Germany or Denmark, many local and less-frequently used roads are paved with brick or paving slabs. These are easier to dig up and replace without affecting the quality of the surface.
6. Connected and remote monitoring
Streetworks are increasing partly because our old infrastructure is ‘dumb’: sometimes no-one knows where it is, who owns it, whether it’s working, or when it will need to be replaced.
‘Smart’ infrastructure aims to change this by creating information on its performance. Sensors can be attached to pipes, ducts and structures to monitor stresses, temperatures, movements and pressures. Whole simulations can replicate real-world systems in digital models, allowing managers to identify likely maintenance and replacement needs.
Infrastructure can now be monitored in new ways, too. Underground radar, drones, and satellite monitoring are all cheaper, more capable and accurate than ever before.
AI is also being used to monitor and manage infrastructure. Traditionally, surfaces had to be inspected manually. Now cameras installed in vehicles use AI to automatically identify and record surface defects. This is in its infancy - at the moment it cannot measure depth of any road defects - but the potential for any authority vehicle to become an AI-driven monitoring tool is clearly there.
This applies to traffic management too: a new generation of temporary traffic light uses a much more sophisticated form of AI-driven monitoring to sequence light changes. One company claims that this can increase flow of traffic by up to 50% compared to more traditional sensory technology.
How can councillors help spread new technologies?
Councils can take three steps to spread the use of these technologies.
First, their own roads and streetworks teams can be encouraged to look at these tools and techniques, showing that public authorities are leading by example.
Second, they can look at working with other authorities on larger-scale innovation projects or technology procurements. This can create economies of scale, create integrated regional-level systems (particularly useful for public communications and data platforms), share risks and costs, and add up to higher-impact adoption.
Finally, they can start asking other organisations to explore these tools as part of the permitting process. Permits can include conditions, such as using particular techniques or requirements to give notice when works are complete and temporary traffic lights no longer required. Councils could suggest (or in some circumstances, require as a condition) using new approaches as part of conversations on these aspects of the work required. This cannot include technical guidance - for example use of materials or technical standards for reinstatement - but can shape the method used to deliver works.
Conclusion
Streetworks are a fact of life. But the current frustrations felt by councillors, the public, and road users are not inevitable. Future regulation will clearly play a role in reshaping the delivery of streetworks. The best councils will also look to act now - and understand that they can already make huge progress.
This means using technology to prevent, plan and provide streetworks.
Authorities can also look to best practice in process, policy and leadership. They can make smart choices about lane rental and permits to encourage more innovative, efficient behaviour. They can look at day-to-day processes in streetworks management, transport and highways, and creating internally-aligned teams. They can be astute in their use of urban design. And they can forge wider cultures of innovation and energy across their organisations.
Streetworks are a system, in other words: the best thing councils can do is to push for change across different aspects of that system. They can start by assuming leadership.
Questions to ask streetworks teams
- Are we using different permit prices to encourage different behaviour?
- How are we encouraging utilities firms to give us real-time data on their works?
- How are we encouraging utilities firms to use pipe-jacking or avoid digging up the roads?
- What’s our process for keeping bus services up-to-date on disruption - do we have a single person to do that?
- Have we ever used a challenge-based procurement to look at doing streetworks better?
- Have we considered how this design will look when dug up?
- Have we considered how a different surface might increase the longevity of any resurfacing works?
- How often do we inspect streetworks?
Jargon buster
Streetwork - work undertaken on, under or above the road surface.
Roadwork - repairs to the road surface, typically undertaken by highways authorities
Promoter - the organisation undertaking streetworks
Utility - gas, electricity, sewage, water, broadband and telecoms
Network occupancy - how much of the road system is out of use due to streetworks
Line miles - how many miles of road are having streetworks
Restitution - repairing a road to its previous quality after works
Lane rental - charging promoters to access roads for streetworks
Permit - required to undertake streetwork, in an authority with a permit scheme
Section 50 permit - required by an organisation without the statutory right to undertake work
DMRB - Design Manual for Roads and Bridges
SROH - Specification for the Reinstatement of Openings in Highways
Further case-studies
Kent - dynamic pricing in lane rental
Kent County Council was the first authority to introduce a lane rental scheme. Its scheme offers a range of prices, reflecting the impact of different kinds of work. Closing a road, for example, means major disruption compared to putting in traffic lights - so lights cost £400 per day, and a full closure £2000. There are different rates for different parts of the county, and different days depending on which roads are used when. All of this means that the scheme works as a dynamic incentive to undertake work as efficiently and seamlessly as possible.
Oxfordshire - focussed support for bus management
Oxfordshire covers a range of urban and rural locations. Bus services are essential for connecting many of its towns and villages - so streetworks can have a huge impact if they require long diversions and unexpected delays. The council has a ‘bus champion’ role who is consulted before a permit is issued. They then work with bus operators to plan around disruption, and represent any concerns or changes - such as conducting works outside peak times, or at less busy times of year.
Gateshead - proactive use of a permit scheme
Across a full year, Gateshead saved nearly 500 days of work by utilities firms by using a permit scheme. This includes giving notice on the local authority’s own plans to undertake roadworks, and a clear schedule of meetings to discuss shared plans. Organisations carrying out streetworks are also encouraged to share trenches. Traditionally, they are reluctant to do so, because it can often leave them unclear on liability, responsibility and costs. Gateshead has a clear policy in its permitting to encourage shared works. One organisation is the lead or ‘primary’ organisation, and pays a higher fee and has overall responsibility for restitution and quality. A ‘secondary’ organisation pays a lower fee, but entrusts the primary organisation with it. This reflects promoters’ concerns on sharing liability and the fact they are generally more comfortable doing their own works - and need a discount to look at sharing.
Ealing - flexi-permits for new broadband
Ealing has trialled a flexi permit system in cooperation with OCU Group and Openreach. This was during Openreach’s large-scale programme of connecting up to 4,500 homes in Ealing to fibre optic broadband. The trial covered a wider, fixed geographical area and gave utility providers and contractors the opportunity to work across multiple streets at the same time and reduce the number of individual permits that need to be submitted and approved.
While the trial has increased efficiency for the works promoters and contractors, the interim process meant that the highways authority had to use two separate systems to track permits and register the planned and ongoing work, increasing the admin burden on the authority.
The trial has shown that in limited circumstances, for instance where there is a lot of work needed within a small defined area, or where the extent of the work required is not known and requires further exploratory work, the flexi permit system can be a good solution.
London - streetworks innovation funded by lane rental
Transport for London has an innovation programme funded by lane rental. This emphasises new ideas and tools to improve streetworks processes. One project got funding to create ‘smart streetworks’ barriers. These are barriers which have in-built sensors. If they fall over or are moved, they send an alert to managers. Another saw the creation of a London-wide infrastructure map, while others looked at specific on-the-ground tools for works teams. The projects have a set process for applying for funding which balances oversight with avoiding unnecessary bureaucracy.