Cities on the edge: edge computing and the development of smart cities

From Barcelona to Glasgow, across the world, a trend towards making our cities “smart” has been accelerating in line with demands for cities to become more responsive to the needs of residents. In the wake of the Covid-19 pandemic, there is a newfound urgency to ensure that the places where we live are more resilient and are able to respond to changes in behaviour. For example, the need to keep a two-metre distance from people outside of your household required cities to take action to widen pavements and deploy pop-up active transport infrastructure to prevent overcrowding on public transport.

Over the past twelve months, cities across the world have taken a variety of different actions in order to support the almost overnight transition to what has been described as the “new-normal”. In the year ahead, it’s likely we will see further changes in resident behaviour, as the vaccine roll-out enables a transition out of the public health emergency and allows for the gradual reopening of society. Cities once again will have to be ready to react to changes in how people interact with their environment. However, the extent to which people will go back to pre-pandemic behaviours is not yet clear.

Not so smart cities

The ability to monitor and analyse the ways in which people interact with cities has been heralded as a key benefit of the development of smart cities, and as highlighted above, in some ways it has never been more important. However, the way in which smart city infrastructure currently collects and analyses data tends to be relatively “dumb”, in the sense that data is sent to a separate location to be analysed, rather than occurring on the device that’s collecting it.

Due to the sheer amount of data being transferred for analysis, this process can be relatively slow and is entirely dependent on the reliability and speed of a city’s overall network infrastructure. As a result, the ability to take real-time action, for example, to change traffic management systems in order to reduce congestion, is potentially limited.  

A good example of a device that acts in this way is a smart speaker, which is capable of listening out for a predetermined wake-word but is relatively incapable of doing anything else without a network connection. All other speech after a user has said the wake-word tends to be processed at a central server, Therefore, any disruption to the smart speaker’s ability to communicate with a server in the cloud will prevent it from completing the simplest of tasks.

This is why Barclays have argued that the future of smart city development will heavily rely upon a technology known as “edge computing”, which enables data analysis to be conducted closer to smart city infrastructure, rather than being sent to a distant central server.

What is edge computing?

Put simply, the concept of edge computing refers to computation that is conducted on or near a device that’s collecting data, for example, a smart traffic light. Data collected by the device is processed locally, rather than transmitted to a central server in the cloud, and decisions can be made in real-time locally on the device. Removing the need to transmit data before any action is taken facilitates real-time autonomous decision-making, which some experts argue could potentially make our cities operate more efficiently.

Additionally, as edge computing is not reliant upon a connection to a central server, there are enhanced security and data privacy protections, which will reassure citizens that collected data is safe and makes smart city infrastructure less vulnerable to attack. However, if an attacker were to breach one part of the edge computing network, it would be easy isolate affected parts of the network without comprising the entire network.

In the near future, smart city infrastructure will be vital to enabling autonomous vehicles to navigate our cities, making security of these technologies all the more important.

Cities on the edge

An example of the application of edge computing in smart city infrastructure can be seen in the development of smart CCTV cameras. According to the British Security Industry Association, there are an estimated 4 to 5.9 million CCTV cameras across the UK, one of the largest totals in the world. Each of these cameras is recording and storing a huge amount of data each day, and for the most part, this footage is largely unused and creates the need for an extensive amount of expensive storage.

Edge-enabled smart CCTV cameras could provide a solution to this issue through on-device image analytics, which are able to monitor an area in real-time and only begin recording when a pre-determined event occurs, for example, a vehicle collision. This significantly reduces the amount of footage that needs to be stored, and acts as an additional layer of privacy protection, as residents can be reassured that CCTV footage will only be stored when an incident occurs.

Additionally, edge-enabled smart CCTV cameras can also be used to identify empty parking spaces, highlight pedestrian/vehicle congestion, and help emergency services to identify the fastest route to an ongoing incident. Through the ability to identify problems in real-time, cities can become more resilient, and provide residents with information that can allow them to make better decisions.

For example, if an increased level of congestion is detected at a train station, nearby residents could be advised to select an alternative means of transport, or asked to change their journey time. This could help prevent the build-up of unnecessary congestion, and may be helpful to those who may wish to continue to avoid crowded spaces beyond the pandemic.

Final thoughts

Over the past year, the need for resilience has never been more apparent, and the way we interact with the world around us may never be the same again. The ability for cities to monitor and respond to situations in real-time will be increasingly important, as it’s not necessarily clear the extent to which residents will return to pre-pandemic behaviours.

As a result, smart city infrastructure may be more important than ever before in helping to develop resilient cities which can easily respond to resident needs. Edge computing will act as the backbone of the smart city infrastructure of the future, and enable new and exciting ways for cities to become more responsive.


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Bristol is Open: case study of an innovative smart city

By Steven McGinty

In May, ‘Bristol is Open’ was named as a leading smart city, just behind London, in Huawei UK’s Smart Cities Index. In the same month, Bristol is Open was also announced as Smart City Innovator of the Year by TM Forum’s Digital World Awards.

Bristol is Open

The project is a joint venture between the University of Bristol and Bristol City Council. Several other partners are involved, including national and European governments and commercial organisations, such as Japanese technology firm NEC. This collaborative project will act as a ‘laboratory’ for research and development initiatives and will help shape the development of smart cities and the ‘internet of things’.

Paul Wilson, Managing Director of Bristol Is Open, explains what’s so innovative about the project:

We use a software-defined network (SDN) to run the city in Bristol and then we apply network functions virtualization (NFV) into that network, which is allowing us to have an elastic and scalable network that we can slice to thousands of different users.”

In simple terms, the city is in the process of creating a world leading digital infrastructure. This includes: 144 core fibres in the ground; a mile-long stretch of wireless connectivity along the harbourside, which will include experimental wireless technology such as 5G mobile broadband; and a selection of internet of things sensors and technologies, including 1,500 lampposts. All of which, will be interconnected and controlled by software.

A key advantage of this new model is the ability to splice up the network for different users. This provides the opportunity for new partners to become involved, including community organisations and small start-up companies. Professor Dimitra Simeonidou, Project Lead and Chief Technology Officer at Bristol is Open, also explains that the network is “open, agnostic and programmable”, ready to be adopted for the technologies of the future.

Interestingly, the core fibres were installed in a network of redundant ducts purchased by the council over ten years ago. Previously, they had provided cable television to homes in Bristol in the 1970s.

The Data Dome

Last November, the project launched ‘The Data Dome’ at Bristol’s Planetarium.

The 98-seat Bristol Data Dome is connected to a high-performance computer at the University of Bristol (via a 30Gb/s fibre link). The Data Dome, supported by the network and high-speed computer, provides an opportunity to visualise complex experiments, create virtual reality environments and give audience members their own unique perspective.

The dome has been used to show content from earth sciences, as well as real time sociological mapping in cities. Engineers, at corporate sponsor Rolls Royce, have also used the Dome to visualise engines and to inspire young people about engineering.

‘No grand visions’

In a recent TED talk, Stephen Hilton, Leader of Bristol City Council’s Futures Group, states that ‘he doesn’t like to spout grand visions’.  Instead, he explains that the Bristol is Open team prefers to focus on tangible targets and introduce measures that lay the groundwork for smart cities.

He highlights that the project aims to:

  • reduce carbon emissions by 40% by 2020;
  • create 95,000 new jobs, particularly in high growth sectors such as the creative industries and green technology;
  • have Bristol recognised among the top 20 European cities by 2020.

 Smart Cities Index

Huawei’s Smart Cities Index highlights five important themes for creating successful smart city programmes. These include:

  • the importance of leadership and vision
  • a need to focus on local priorities and strengths
  • the importance of engagement with local communities
  • building local partnerships
  • understanding the way in which the data revolution can improve services and boost innovation

Privacy

George Ferguson, former Mayor of Bristol, recognised the challenges surrounding data privacy. He acknowledged that privacy can lead to heated debate and advised that cities should help shape the debate, rather than leave it to technology companies. For him, understanding how citizens want their data to be used is an important part of the Bristol is Open project.

However, this may not satisfy those concerned about lampposts with “acoustic detection sensors” capable of recording noise levels, possibly speech.

Final thoughts

Bristol’s commitment to becoming a truly smart city has led to its award winning status. In the future, it will be interesting to see if it’s ambitious, yet pragmatic, approach will help to address some of the city’s key challenges, such as reducing carbon emissions. More importantly, it will be interesting to see whether the lessons learnt in Bristol, will be introduced in other cities, and whether we move away from the idea of smart cities to a ‘smart nation.’


Follow us on Twitter to see what developments in public and social policy are interesting our research team. If you found this article interesting, you may also like to read our other digital articles. 

Secure care in Scotland: measuring outcomes and sharing practice

By Rebecca Jackson

There are five centres which offer secure care in Scotland, with around 100 of Scotland’s most vulnerable children and young people placed within these units. Placements happen if they are deemed to be a risk to themselves, or others, within their communities, and it is felt that they can only be managed effectively within a secure care setting. These placements are arranged via the courts or the children’s hearing system.

 

National Secure Care Project

In 2014 the Scottish Government granted funding to the Centre for Youth and Criminal Justice (CYCJ) for a fixed term project to build on the work of the Securing our future initiative (SOFI) report in 2009. The SOFI report was a comprehensive analysis of the secure care estate in Scotland. It made recommendations for future practice in secure care and also suggested ways that the system could be made more efficient and young person centred. These included implementing and embedding the Getting It Right for Every Child approach and making full use of the Children’s Hearing and Early Years frameworks, including the SHANARRI indicators on well-being.

A scoping study was completed by CYCJ in 2015 which considered the current legislative and academic frameworks, as well as current practices of the 5 centres of secure care in Scotland. This followed the streamlining and takeover by Scotland Excel in 4 of the centres and Edinburgh City Council in the other.

The scoping study report, along with the project plan, highlights the aims and objectives of this new national programme:

  • identifying and promoting current best practice
  • identifying and exploring alternatives to secure care
  • building capacity within the secure care sector to draw comparisons and learn from the rest of the UK (and from each other)

Other key issues that the studies identified as needing to be addressed included:

Outcomes in secure care

One of the key issues raised by academics, policy makers and practitioners within secure care is the concept of outcomes. It’s been suggested that there is a need for both individual outcome targets for each child within secure care but also for a wider framework of general agreed outcomes to allow for better comparison between centres, which it is hoped will help raise standards of practice.

It is also recognised that long term, as well as the immediate, outcomes need to be assessed and researched. This ties in with the need for more emphasis on transitionary care and support. Although there is an expectation that local social workers will follow up on behalf of the secure care units, this isn’t always the case.

Key questions also have to be addressed from within the sector itself with regards to:

  • what are the aims of the centres
  • what exactly is meant by positive outcomes
  • what counts as an outcome
  • how can we look at a child or young person and say that a certain objective has been met, and can this be attributed to any one particular event, intervention or placement

These questions are not unique to the secure care sector but they do need addressed. Similarly there needs to be a wider acceptance that there are multiple outcomes and that these can be in terms of quality of life, process or change outcomes.

Sharing best practice and using staff as “knowledge brokers”

There is concern among practitioners and academics that, as a result of the changes to secure care provision implemented in 2014, secure care units are now reluctant to collaborate and share best practice.

The nature of the new secure care framework agreement means that, despite being referred to as a “secure care network”, the five centres are now in effect “in competition with one another” for individuals to be placed with them.

There is a risk that this constrains the sharing of best practice, ultimately reducing the collective standard of all five centres and therefore reducing the standard of care afforded to some young people. This was particularly highlighted in the 2015 CYCJ scoping report.

One of the key ways to share information and best practice is to allow the people who work within the centres, working with residents on a day to day basis, a platform to discuss and contribute to a wider discussion of best practice outside of their own individual centre.

Another potentially useful strategy would be to integrate approaches from traditional social work with regards to sharing ideas and information. This may also make it easier for social workers within and outside the secure care context to liaise with one another. Using staff members as “knowledge brokers” could be an efficient and effective way to allow staff to communicate best practice. Tools such as a digital platform, interactive app or online forum could help staff to share their experiences.

With the project scheduled to run until 2017, some of the issues highlighted here were discussed at an event hosted by CYCJ and WithScotland at the University of Strathclyde in April 2016. The hope is to increase collaboration and move the provision of care and creation of successful and useful outcomes frameworks forward as part of the wider National Secure Care Project.


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Co-production in the criminal justice system

Community concept word cloud background

By Rebecca Jackson

Co-production in criminal justice was the core theme of a conference held last Wednesday by the Scottish Co-Production Network.

The speakers were invited to showcase their organisations as three examples of best practice. All the organisations have integrating partnerships and co-production at the heart of their values, and they spoke of the benefits and challenges they had faced, as three very different organisations, all looking to use co-production in the context of criminal justice.

Startup Stock Photos

Startup Stock Photos

Supporting vulnerable women

Tomorrow’s Women Glasgow, is part of a national pilot which aims to develop community- based justice options for people who are offenders. This specific pilot focuses on vulnerable women with complex needs who are in, or have recently been involved in, the criminal justice system.

The women-only centre offers a safe space for women to come and spend time and to work with mentors to address the barriers and issues which prevent them from leading positive, healthy lives. In addition to this, the women are invited to contribute ideas towards the running of the centre, planning activities, contributing to a newsletter and hosting open days.

“The scheme gives vulnerable women a choice, a voice, a direction and opportunities”

The project is run in association with the social enterprise Outside the Box. There are some examples of Outside the Box’s other projects here.

woman hands isolated on sky background

Improving transitions from prison

Pete from Positive Prison? Positive Futures… delivered an inspiring and thought-provoking presentation about his experiences as a person with a conviction who had served time in prison and how that drove him to help others upon their release from prison. He helped to set up the organisation Positive Prison? Positive Futures… (PP?PF) which seeks to “improve the effectiveness of Scotland’s criminal justice system so as to reduce the harms caused by crime and to support the reintegration of those who are or have been subject to punishment”.

He was keen to stress that the charity is not a service provider; rather it is an initial point of contact to help direct people with convictions to the available and relevant services which already exist.

“We’re kind of like in space when you use the gravitational pull of an object to slingshot you in the right direction (Apollo 13 reference anyone?!). People are coming to us going one way, we come into contact with them, build their speed and send them in another, safer, hopefully better direction!”

In addition to this, the charity engages regularly with the Scottish Government as part of committees looking into reform of the prison service, the redesign of community justice and have, among other things, influenced policy decisions around the release of individuals from prison including transitional care.

The charity works with recently released, or soon to be released people with convictions, looking at building relationships during the vulnerable first few weeks ‘on the outside’ where re-offending and suicide rates are high. They also offer mentoring to help prepare people for the transition from prison life.

Two adult education students studying together in class.

Co-production and young people

Space Unlimited is a social enterprise based in Glasgow, which offers a creative space for young people to become involved in the planning and review of the criminal youth justice system. It encourages young people from vulnerable backgrounds, as well as young people who have served time in prison, to use their experiences to change how offending and criminal justice is viewed by young people.

The scheme aims to provide a space to show how young people can use their views to influence how the system can work best for them, to avoid re-offending and help integrate them back into society. The young people interact with adult stakeholders from across the local authority and criminal justice sector, as well as charities and third sector organisations.

“We promote and encourage children and young people to view themselves as experts in their own right, using their own experiences to promote positive change in the youth criminal justice system”

Category Picture Community Development

Creating new spaces for dialogue

What all of the case studies sought to highlight were the key elements of co-production:

      • Assets
      • Capacity
      • Mutuality
      • Networks
      • Shared roles
      • Catalysts

The speakers discussed their learning and experiences, as well as the challenges they face, but all highlighted the fundamental belief underpinning co-production – that service users and service providers can learn from one another. We create better services by engaging service users – creating services with people, not for them.

Co-production is an approach which is widely spoken about in health and social care, but as the conference and its speakers highlighted, the application and remit of co-production could be rolled out over other areas of policy too. It is all about finding groups of people willing to engage and to listen – creating a space for an exchange of dialogue, knowledge and learning. And the results could potentially be hugely beneficial for both service users and service providers. This video from the New Economics Foundation (NEF) highlights some of the benefits of co-production in practice.


Co-producing Positive Futures learning event: how co-production, learning and partnership building can improve community experiences and engage people in the criminal justice system. Scottish Co-production Network, Glasgow, 28 October 2015.