Tag Archives: benefits of smart cities

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

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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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Unlocking the potential of smart cities: All-Party Parliamentary Group calls for coherent UK Government strategy

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Hong Kong city

By Steven McGinty

“The role of smart cities is not to create a society of automation and alienation, but to bring communities together”. (Iain Stewart MP)

In June, the All Party Parliamentary Group on Smart Cities published a report outlining the findings of its recent inquiry into how the UK Government can support the expansion of smart cities and enable the UK to become a world leader in the field.

It explains that although some people have concerns that smart cities are expensive gimmicks, or even something more sinister, the potential in becoming smarter could have a tremendous impact on the lives of citizens.  And ‘smart’, the report makes clear is not just about clever technologies, but any innovative approach or solution that brings together industries or government departments to solve everyday problems.

Included in the report are the number of ways smart approaches can improve city life, such as:

  • Making cities accessible for all – improving the design process can ensure that people with physical disabilities are not prevented from enjoying the public spaces.
  • Empowering citizens in democracy – new technologies can give citizens a voice by connecting them with each other, as well as those running services or those making decisions.
  • Reducing the strain on our health service – providing citizens with access to their own health records can encourage greater responsibility for their own healthcare.
  • A more efficient, flexible transport system – improving transport information can help citizens plan journeys and smart ticketing options can allow citizens to travel easily between transport services.
  • Creating a cleaner environment and enhancing air quality – smart technologies can help address environmental challenges, such as improving traffic flow to help limit harmful emissions in congested areas.

If cities are looking for a blueprint to success, there have been numerous smart city initiatives introduced across the world. For example, the report highlights how the Scottish Cities Alliance, a joint initiative between Scotland’s seven cities (Aberdeen, Dundee, Edinburgh, Glasgow, Inverness, Perth and Stirling) and the Scottish Government, is encouraging collaboration and the take-up of technologies designed to improve air quality, traffic flow and cut pollution.

There’s also two examples from further afield. Estonia, which is widely recognised as a smart city leader, is viewed as an example of best practice in data sharing. The country provides citizens with control over their data by providing easy access to their education, medical and employment records through an online portal (with the option to request changes). And in Singapore, the “Smart Nation” initiative has become known for its use of a coordinating body to provide leadership to their smart cities agenda.

In concluding the report, The APPG make a series of recommendations to effectively drive forward the smart cities agenda. This includes:

  • encouraging the promotion of a smart culture;
  • convening smart standards and data; and
  • promoting the UK’s smart city expertise overseas.

In particular, a number of interesting points are raised about how to promote a smart culture, from ensuring smart city initiatives focus on the outcomes for citizens to putting collaboration with other cities (and the sharing of best practice) before any form of competition.

Iain Stewart MP, chairman of the APPG on Smart Cities, summarises the report’s main message, as well as calling for the UK Government to create a strategy. He argues:

“A coherent strategy from central government is needed to ensure a joined-up approach between businesses and those who work most closely with and on behalf of their citizens – local government. By fully embracing the smart cities approach, central government can empower local authorities to show ordinary people how smart can positively impact on their everyday lives.”

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 smart cities articles. 

Bristol is Open: case study of an innovative smart city

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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.