Within the framework of the DAnalytics project (Advanced Analytics for Science City Darmstadt – Darmstadt Analytics), Darmstadt is developing and installing a so-called ‘traffic light phase assistant’ over the next nine months. This assistant generates real-time traffic data and informs road users via an app about the optimum travel speed for a green wave. The system uses the Signal2X app to provide public transport, car drivers and cyclists with the recommended travel speed for a green wave as part of a real-world laboratory for cooperative traffic management.

‘If more cars, public transport and bicycles drive on the green wave, fewer drivers will have to brake and start again at traffic lights. As stop-and-go situations are responsible for a large proportion of traffic emissions, the traffic light phase assistant helps improve air quality in cities and thus protect the environment,’ explains Head of Transport Michael Kolmer. ‘In addition, the data from the traffic light phase assistant is permanently fed back to the DAnalytics analytical platform. They are available there as a database for the central traffic computer in real time and for traffic planning, enabling active, environmentally sensitive traffic management that also improves the quality of life in the city,’ says Kolmer.

The traffic light phase assistant uses intelligent algorithms to calculate the optimum speed for travelling on the green wave. According to the provider, the predictions are up to 99.8 per cent reliable. A quality factor that incorporates current conditions and sudden events into the calculations helps to assess reliability. In the future, drivers, cyclists, buses and trams will receive the green-time forecasts in real time via the Signal2X smartphone app. This is currently available free of charge for smartphones with iOS and Android operating systems in the App Store. In the future, for the first time in Germany, Signal2X will also be available for Apple CarPlay and Android Auto. In the long term, the speed recommendations will not only be available via the app, but also be integrated into common navigation systems via a cloud system.

Based on Darmstadt’s Green City Plan, digital traffic management has been gradually and modularly expanded since 2018 with an environmentally oriented, proactive overall concept for real-time traffic control. In addition to investments in tailor-made traffic technology, especially in sensors and cameras, citizens should be provided with traffic-relevant information – via apps, for example. A solution for planning personal mobility in real time is therefore being developed and tested in the first half of 2023.

Based on Darmstadt’s Green City Plan, digital traffic management has been gradually and modularly expanded since 2018 with an environmentally oriented, proactive overall concept for real-time traffic control. In addition to investments in tailor-made traffic technology, especially in sensors and cameras, citizens should be provided with traffic-relevant information – via apps, for example. A solution for planning personal mobility in real time is therefore being developed and tested in the first half of 2022. Since the beginning of 2018, the DAnalytics project has been one of the most innovative projects in the field of environmentally sensitive traffic management in Germany and forms the basis for sustainable and low-emission mobility in Science City Darmstadt. To this end, a specialised project team has also been set up in the Mobility department. The aim of the project, which is funded by the German Federal Ministry of Transport and Digital Infrastructure (BMDV), is to exploit the possibilities of big data analytics in the field of traffic management, so that both road users and the environment benefit equally. The focus is on reducing pollutant emissions from transport, in particular nitrogen oxides. One of the most important project goals is therefore the creation of a data-driven traffic management system in real time, which, on the basis of the latest figures, data and facts of the city of Darmstadt, creates the basis for event- and environment-oriented decisions regarding traffic management. It also considers the emission-oriented improvement of the modal split at the individual hubs as well as an active reduction of total emissions from fossil-fuelled means of transport. In addition, the aim is to obtain a holistic, network-oriented understanding of traffic in Darmstadt, as a basis for long-term traffic planning, mobility management, logistics management and parking management, among other things. In Nieder-Ramstädter Straße, a real-world laboratory for cooperative traffic control, also funded by the BMDV, has been set up in which, for example, the optimisation of public transport and traffic flow is simulated and tested. The project involves installing smart sensors and intelligent traffic technology that generate real-time traffic data and develop effective traffic control measures on the basis of this data. In Nieder-Ramstädter Straße, the components will be tested in a cooperative real-life laboratory (public transport/car/bike/pedestrian traffic) until autumn and then implemented throughout the entire city area. A key element of the overall measure is the new multimodal traffic light phase assistant.

Michael Kolmer, head of Transport of Science City Darmstadt: ‘With DAnalytics, we are complementing our overall concept for digital traffic control, which is geared towards the benefit of citizens. Our focus is not only on public transport and bicycle traffic, but also on pedestrians and people in their own vehicles. With this equal and multimodal approach, it will be possible to avoid pollutants, reduce driving times for all road users and, at the same time, advance climate protection. The traffic light phase assistant makes this approach tangible for people and enables them to make their own contribution to the mobility revolution.’

Katharina Metzker, head of the Mobility department and project manager for the two Green City innovation projects adds: ‘With smart technologies such as the traffic light phase assistant, we want to encourage drivers to behave in an environmentally sensitive manner and to make mobility in our city more sustainable and efficient, together with all stakeholders in the transport ecosystem. Our project team, together with the Mobility department as a whole and external partners, is investing a lot of time, personal commitment and passion in this.’

The implementation of the project objectives is based, on the one hand, on the measures already developed in the Darmstadt Green City Plan (Master plan – measures and package of measures to reduce NO22pollution of 31 July 2018) and, on the other, on the derived findings of data-driven, active and environmentally sensitive traffic management (AUVM), the development and building up of which are at the heart of this project.

It was four years ago that Science City Darmstadt set out to turn into a digital city. This goal was supported by the state of Hesse, both as an idea and financially. As 2021 draws to a close, the state’s financial support is coming to an end, and so Smart City Darmstadt took stock of the situation at a virtual press conference today together with Hessian Minister for Digital Strategy and Development Prof. Kristina Sinemus, Darmstadt’s Lord Mayor Jochen Partsch and Darmstadt’s Chief Digital Officer Prof. Michael Waidner.

‘Since winning the title “Digital City” in 2017, Darmstadt has made the best possible investments in the future. And that’s not all. With a broad strategic approach, the state funding of five million euros was used wisely, enabling almost all areas of municipal activity to achieve a measurable boost in development. It is particularly noteworthy that the city’s inhabitants were not presented with a finished outcome, but were involved in a comprehensive and transparent process. This approach is entirely in line with the digital strategy of the state of Hesse, according to which digitalisation must not be an end in itself and whose focus is on people. Congratulations on a job well done to all those involved! It wasn’t an easy project, but it was worth it,’ explained Hesse’s Digital Minister Prof. Kristina Sinemus.

The minister also stressed that Darmstadt had developed into a model municipality for Hesse and the federal government. Transferring the findings and solutions from Darmstadt to other Hessian municipalities had been considered right from the start of the funding period, with the aim of developing the whole of Hesse into a smart region.

Darmstadt’s Lord Mayor Jochen Partsch added: : ‘We set out in 2017 to become Smart City Darmstadt, for which there were no urban planning blueprints from other cities or communities at the time. Back then, as pioneers, we set ourselves the goal of digitalising the provision of our public services in the interests of the city’s residents and creating a European counter-model to the Asian smart city. As a result, we have succeeded in establishing digital sovereignty, and we have also been able to achieve tangible added value for our ecological, economic and social goals with digitalisation. Things like intelligent waste disposal and traffic management using AI, as well as digital media education, have appeared on the agenda of other municipalities. Looking back, what really pleases me is the fact that our idea of using digitalisation as an urban planning tool has become very successful. We are using digital applications to make Darmstadt even more liveable – and have thus become the first blueprint for other municipalities. An important element in achieving this was the financial and personal support of the state of Hesse, for which I would again like to express my thanks.’

One of the secrets of the successful strategy, Partsch continued, is Darmstadt’s rigorous approach, whereby digitalisation projects are not implemented in a city’s historically established structures, but instead have to operate in a networked way between the administration and city management. This happened in 14 urban action areas and the state funding supported 20 projects. ‘As a result, we achieved a great deal – for example, being the first city ever to be able to work with a fully productive data platform. It links city data from the various offices, partly in real time, and enables faster and, above all, more targeted action to address challenges in mobility chains or environmental issues, for example.’

In addition to all of the project work, an important step in Darmstadt’s development into a beacon of digital urban development was the establishment of the Ethics and Technology Advisory Board, as CDO Prof. Michael Waidner further explained: ‘The ethical guidelines are another recipe for success in our history of digitalisation. They enable a high level of acceptance of technology in society and the economy, thus paving the way for a future in which Darmstadt can react quickly to change and accommodate and deploy new technologies and applications. The projects and laboratories also complement Darmstadt’s profile as a city of science with its strong research institutions, such as the Technical University of Darmstadt and other universities, the Fraunhofer-Gesellschaft, GSI, ESA/ESOC institutes and, of course, the National Research Center for Applied Cybersecurity ATHENE, the largest research centre of its kind in Europe. The aim of Smart City activities is always to focus on the benefits for the city’s inhabitants. This approach has become widely established, and we now know that other cities and communities are embracing our principles when they start their own digitalisation work.’

Smart City Darmstadt’s success story is not coming to an end. The established structures, which now include Smart City Laboratory, are being continued as part of the nationwide ‘Smart Cities made in Germany’ funding scheme of the Federal Ministry of the Interior (BMI). Focal points of future Smart City development include climate resilience and water management in Science City Darmstadt. The strategy phase for the new funding has already begun in 2021 and will continue to work out what will be undertaken in the new funding period of seven years with a financial volume of €13.3 million.

‘Data and information are an essential resource of the information society. As a result, there is a growing desire among business, academia and civil society to have more and easier access to public administration data. Many specialist departments of Science City Darmstadt already make data and information available to the public. The provision of open data is an appropriate means to better respond to the growing demand for data and information, to promote transparency and to stimulate knowledge and innovation processes.’

The adopted open-data strategy creates a basis for the systematic provision of administrative data for Science City Darmstadt. The adopted open-data strategy creates a basis for the systematic provision of administrative data for Science City Darmstadt. It is guided by best practices in order to participate in the experiences of other municipalities. The guiding principle is to understand the handling and provision of open data as a learning system in which processes are continuously monitored and improved. The available resources must be sufficient for sustainable operations, which requires pragmatic thinking and actions. For this reason, the aim is not to provide as much data as possible, but rather to concentrate on important databases for users and to permanently keep them up to date.

The open data of the city of Darmstadt should be made available to its users in a machine-readable and easily accessible manner and be permanent and free of charge. Personal data or data subject to confidentiality cannot be made available as open data. The open data of the city of Darmstadt is all made available to its users centrally via the open-data platform of the City of Science. A centralised data offering promotes the traceability of data and helps to secure and comply with uniform standards for data provision. In future, the open-data platform will be linked to the recently launched data platform of Digitalstadt Darmstadt GmbH and will be an important data provider for applications placed there.

The open-data strategy was developed by the Statistics and Urban Research departments in cooperation with the IT department of Science City Darmstadt and with the support of Digitalstadt GmbH. Accordingly, the Statistics and Urban Research departments will in future be responsible for the open administrative data, while the IT department will be responsible for the technical aspects of the open-data platform.

Once a municipal ‘Open Data’ officer has been appointed, the strategy will be implemented step by step in cooperation with the individual departments of the city administration. An ‘Open Data’ working group from the central departments for the topic will also meet under their leadership in order to strategically and organisationally support the process around the provision of open data.

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