The UK water sector is experiencing a period of profound change with both public and private sector actors seeking evidence-based responses to a host of emerging global, regional and national challenges which are driven by demographic, climatic, and land use changes as well as regulatory pressures for more efficient delivery of services. Although the UK Water Industry is keen to embrace the challenge and well placed to innovate, it lacks the financial resources to support longer term skills and knowledge generation. A new cadre of engineers is required for the water industry to not only make our society more sustainable and profitable but to develop a new suite of goods and services for a rapidly urbanising world. EPSRC Centres for Doctoral Training provide an ideal mechanism with which to remediate the emerging shortfall in advanced engineering skills within the sector. In particular, the training of next-generation engineering leaders for the sector requires a subtle balance between industrial and academic contributions; calling for a funding mechanism which privileges industrial need but provides for significant academic inputs to training and research. The STREAM initiative draws together five of the UK's leading water research and training groups to secure the future supply of advanced engineering professionals in this area of vital importance to the UK. Led by the Centre for Water Science at Cranfield University, the consortium also draws on expertise from the Universities of Sheffield and Bradford, Imperial College London, Newcastle University, and the University of Exeter. STREAM offers Engineering Doctorate and PhD awards through a programme which incorporates; (i) acquisition of advanced technical skills through attendance at masters level training courses, (ii) tuition in the competencies and abilities expected of senior engineers, and (iii) doctoral level research projects. Our EngD students spend at least 75% of their time working in industry or on industry specified research problems. Example research topics to be addressed by the scheme's students include; delivering drinking water quality and protecting public health; reducing carbon footprint; reducing water demand; improving service resilience and reliability; protecting natural water bodies; reducing sewer flooding, developing and implementing strategies for Integrated Water Management, and delivering new approaches to characterising, communicating and mitigating risk and uncertainty. Fifteen studentships per year for five years will be offered with each position being sponsored by an industrial partner from the water sector. A series of common attendance events will underpin programme and group identity. These include, (i) an initial three-month taught programme based at Cranfield University, (ii) an open invitation STREAM symposium and (iii) a Challenge Week to take place each summer including transferrable skills training and guest lectures from leading industrialists and scientists. Outreach activities will extend participation in the programme, pursue collaboration with associated initiatives, promote 'brand awareness' of the EngD qualification, and engage with a wide range of stakeholder groups (including the public) to promote engagement with and understanding of STREAM activities. Strategic direction for the programme will be formulated through an Industry Advisory Board comprising representatives from professional bodies, employers, and regulators. This body will provide strategic guidance informed by sector needs, review the operational aspects of the taught and research components as a quality control, and conduct foresight studies of relevant research areas. A small International Steering Committee will ensure global relevance for the programme. The total cost of the STREAM programme is £9m, £2.8m of which is being invested by industry and £1.8m by the five collaborating universities. Just under £4.4m is being requested from EPSRC

Our national infrastructure - the systems of infrastructure networks (e.g. energy, water, transport, waste, ICT) that support services such as healthcare, education, emergency response and thereby ensure our social, economic and environmental wellbeing - faces a multitude of challenges. A growing population, modern economy and proliferation of new technologies have placed increased and new demands on infrastructure services and made infrastructure networks increasingly inter-connected. Meanwhile, investment has not kept up with the pace of change leaving many components at the end of their life. Moreover, global environmental change necessitates reduced greenhouse gas emissions and improved resilience to extreme events, implying major reconfigurations of these infrastructure systems. Addressing these challenges is further complicated by fragmented, often reactive, regulation and governance arrangements. Existing business models are considered by the Treasury Select Committee to provide poor value but few proven alternative models exist for mobilising finance, particularly in the current economic climate. Continued delivery of our civil infrastructure, particularly given current financial constraints, will require innovative and integrated thinking across engineering, economic and social sciences. If the process of addressing these issues is to take place efficiently, whilst also minimising associated risks, it will need to be underpinned by an appropriate multi-disciplinary approach that brings together engineering, economic and social science expertise to understand infrastructure financing, valuation and interdependencies under a range of possible futures. The evidence that must form the basis for such a strategic approach does not yet exist. However, evidence alone will be insufficient, so we therefore propose to establish a Centre of excellence, i-BUILD, that will bring together three UK universities with world-leading track records in engineering, economics and social sciences; a portfolio of pioneering inter-disciplinary research; and the research vision and capacity to deliver a multi-disciplinary analysis of innovative business models around infrastructure interdependencies. While national scale plans, projects and procedures set the wider agenda, it is at the scale of neighbourhoods, towns and cities that infrastructure is most dense and interdependencies between infrastructures, economies and society are most profound - this is where our bid is focussed. Balancing growth across regions and scales is crucial to the success of the national economy. Moreover, the localism agenda is encouraging local agents to develop new infrastructure related business but these are limited by the lack of robust new business models with which to do so at the local and urban scale. These new business models can only arise from a step change in the cost-benefit ratio for infrastructure delivery which we will achieve by: (i) reducing the costs of infrastructure delivery by understanding interdependencies and alternative finance models, (ii) improving valuation of infrastructure benefits by identifying and exploiting the social, environmental and economic opportunities, and, (iii) reconciling national and local priorities. The i-BUILD centre will deliver these advances through development of a new generation of value analysis tools, interdependency models and multi-scale implementation plans. These methods will be tested on integrative case studies that are co-created with an extensive stakeholder group, to provide demonstrations of new methods that will enable a revolution in the business of infrastructure delivery in the UK. Funding for a Centre provides the opportunity to work flexibly with partners in industry, local and national government to address a research challenge of national and international importance, whilst becoming an international landmark programme recognised for novelty, research excellence and impact.

National infrastructure provides essential services to a modern economy: energy, transport, digital communications, water supply, flood protection, and waste water / solid waste collection, treatment and disposal. The OECD estimates that globally US$53 trillion of infrastructure investment will be needed by 2030. The UK's National Infrastructure Plan set out over £460 billion of investment in the next decade, but is not yet known what effect that investment will have on the quality and reliability of national infrastructure services, the size of the economy, the resilience of society or its impacts upon the environment. Such a gap in knowledge exists because of the sheer complexity of infrastructure networks and their interactions with people and the environment. That means that there is too much guesswork, and too many untested assumptions in the planning, appraisal and design of infrastructure, from European energy networks to local drainage systems. Our vision is for infrastructure decisions to be guided by systems analysis. When this vision is realised, decision makers will have access to, and visualisation of, information that tells them how all infrastructure systems are performing. They will have models that help to pinpoint vulnerabilities and quantify the risks of failure. They will be able to perform 'what-if' analysis of proposed investments and explore the effects of future uncertainties, such as population growth, new technologies and climate change. The UK Infrastructure Transitions Research Consortium (ITRC) is a consortium of seven UK universities, led by the University of Oxford, which has developed unique capability in infrastructure systems analysis, modelling and decision making. Thanks to an EPSRC Programme Grant (2011-2015) the ITRC has developed and demonstrated the world's first family of national infrastructure system models (NISMOD) for analysis and long-term planning of interdependent infrastructure systems. The research is already being used by utility companies, engineering consultants, the Institution of Civil Engineers and many parts of the UK government, to analyse risks and inform billions of pounds worth of better infrastructure decisions. Infrastructure UK is now using NISMOD to analyse the National Infrastructure Plan. The aim of MISTRAL is to develop and demonstrate a highly integrated analytics capability to inform strategic infrastructure decision making across scales, from local to global. MISTRAL will thereby radically extend infrastructure systems analysis capability: - Downscale: from ITRC's pioneering representation of national networks to the UK's 25.7 million households and 5.2 million businesses, representing the infrastructure services they demand and the multi-scale networks through which these services are delivered. - Upscale: from the national perspective to incorporate global interconnections via telecommunications, transport and energy networks. - Across-scale: to other national settings outside the UK, where infrastructure needs are greatest and where systems analysis represents a huge business opportunity for UK engineering firms. These research challenges urgently need to be tackled because infrastructure systems are interconnected across scales and prolific technological innovation is now occurring that will exploit, or may threaten, that interconnectedness. MISTRAL will push the frontiers of system research in order to quantify these opportunities and risks, providing the evidence needed to plan, invest in and design modern, sustainable and resilient infrastructure services. Five years ago, proposing theory, methodology and network models that stretched from the household to the globe, and from the UK to different national contexts would not have been credible. Now the opportunity for multi-scale modelling is coming into sight, and ITRC, perhaps uniquely, has the capacity and ambition to take on that challenge in the MISTRAL programme.

The surface urban transport infrastructures - our roads, cycle ways, pedestrian areas, tramways and railways - are supported by the ground, and hence the properties of the ground must control to a significant degree their structural performance. The utility services infrastructure - the pipes and cables that deliver utility services to our homes and which supports urban living - is usually buried beneath our urban streets, that is it lies below the surface transport infrastructure (usually roads and paved pedestrian areas). It follows that streetworks to install, replace, repair or maintain these utility service pipes or cables using traditional trench excavations will disrupt traffic and people movement, and will often significantly damage the surface transport infrastructure and the ground on which it bears. It is clear, therefore, that the ground and physical (i.e. utility service and surface transport) infrastructures exist according to a symbiotic relationship: intervene physically in one, and the others are almost inevitably affected in some way, either immediately or in the future. Moreover the physical condition of the pipes and cables, of the ground and of the overlying road structure, is consequently of crucial importance in determining the nature and severity of the impacts that streetworks cause. Assessing the Underworld (ATU) aims to use geophysical sensors deployed both on the surface and inside water pipes to determine remotely (that is, without excavation) the condition of these urban assets. ATU builds on the highly successful Mapping the Underworld (MTU) project funded by EPSRC's first IDEAS Factory (or sandpit) and supported by many industry partners. The MTU sandpit brought together a team that has grown to be acknowledged as international leaders in this field. ATU introduces leaders in climate change, infrastructure policy, engineering sustainability and pipeline systems to the MTU team to take the research into a new sphere of influence as part of a 25-year vision to make streetworks more sustainable. ATU proposes to develop the geophysical sensors created in MTU to look for different targets: indications that the buried pipes and cables are showing signs of degradation or failure, indications that the road structure is showing signs of degradation (e.g. cracking, delamination or wetting) and indications that the ground has properties different to unaltered ground (e.g. wetted or eroded by leaking pipes, loosened by local trench excavations, wetted by water ingress through cracked road structures). For example, a deteriorated (fractured, laterally displaced, corroded or holed) pipe will give a different response to the geophysical sensors than a pristine pipe, while wetting of the adjacent soil or voids created by local erosion due to leakage from a water-bearing pipe will result in a different ground response to unaltered natural soil or fill. Similarly a deteriorated road (with vertical cracks, or with a wetted foundation) will give a different response to intact, coherent bound layers sitting on a properly drained foundation. Taking the information provided by the geophysical sensors and combining it with records for the pipes, cables and roads, and introducing deterioration models for these physical infrastructures knowing their age and recorded condition (where this information is available), will allow a means of predicting how they will react if a trench is dug in a particular road. In some cases alternative construction techniques could avert serious damage (e.g. water pipe bursts, road structural failure requiring complete reconstruction) or injury (gas pipe busts). Making this information available will be achieved by creating a Decision Support System for streetworks engineers. Finally, the full impacts to the economy, society and environment of streetworks will be modelled in a sustainability assessment framework so that the wider impacts of the works are made clear.

The Hub will create a seamless link between science and applications by building on our established knowledge exchange activities in quantum technologies. We will transform science into technology by developing new products, demonstrating their applications and advantages, and establishing a strong user base in diverse sectors. Our overarching ambition is to deliver a wide range of quantum sensors to underpin many new commercial applications. Our key objective is to ensure that the Hub's outputs will have been picked up by companies, or industry-led TSB projects, by the end of the funding period. The Hub will comprise: a strong fabrication component; quantum scientists with a demonstrated ability to combine scientific excellence with technological delivery; leading engineers with the broad collective expertise and connections required to develop and use new quantum sensors. We have identified, and actively involved, industry enablers to build a supply chain for quantum sensor technology. As well as direct physics connections to industry, the engineers provide strong links to relevant industrial users, thus providing information on industrial needs and enabling rapid prototype deployment in the field. To establish a coherent national collaborative effort, the Hub will include a UK network on quantum sensors and metrology, which will also exploit the connections that Prof Bongs and all Hub members have forged in Europe, the US and Asia. This inter-linkage ensures capture of the most advanced developments in quantum technology around the world for exploitation by the UK. Quantum sensors and metrology, plus some devices in quantum communication, are the only areas where laboratory prototypes have already proven superior to their best classical counterparts. This sets the stage, credibly, for rapid and disruptive applications emerging from the Hub. The selection of prototypes will be driven by commercial pull, i.e. each prototype project within the Hub must demonstrate, from the outset, industry or practitioner engagement from our engineering and/or industrial collaborators. We have strong industry support across several disciplines with the structures in place actively to manage technology and knowledge transfer to the industry sector. Particular roles are played by NPL and e2V. We will closely collaborate with NPL as metrology end-user on clock, magnetometer and potentially Watt balance developments with a lecturer-level Birmingham-NPL fellow contributed by Birmingham University and our PRDAs spending ~17 man-years in addition to 3-5 PhD students on these joint projects in the Advanced Metrology Laboratory/incubator space. E2v have a unique industrial manufacturing/R&D facility co-located within the School of Physics and Astronomy at Nottingham that has already catalysed the expansion of their activities into the Quantum Technology domain. Public Engagement conveying the Hub's breakthroughs will be a high priority - for example annually at the Royal Society Summer Exhibitions. In addition to cohort-training of 80 PhD students working within the Hub, the Hub will contribute to the training of ~500 PhD students via electronically-shared lectures (many already running within the e-learning graduate schools MPAGS, MEGS, SEPNET and SUPA) across the institutions within the Hub. The Hub will create an internationally-leading centre of excellence with major impact in the area of quantum sensors and metrology. To widen the impact of the Hub and ensure long-term sustainability, we will actively pursue European and other international collaborative funding for both underlying fundamental research and the technology development.