AI-supported traffic control: How artificial intelligence minimizes traffic jams

Building design

Artificial intelligence optimizes traffic flow by adjusting traffic lights in real time and thus reducing congestion on busy roads. Shawn | Unsplash

Urban traffic is one of the biggest challenges facing modern cities. Traffic jams, environmental pollution and traffic accidents affect the quality of life of residents and cause considerable economic costs. Artificial intelligence (AI) offers an innovative solution to make traffic more efficient and minimize congestion. By analyzing large amounts of data and using machine learning algorithms, AI can optimize traffic flows in real time, dynamically adjust routes and make predictions that make cities smarter and more sustainable. […]

Urban traffic is one of the biggest challenges facing modern cities. Traffic jams, environmental pollution and traffic accidents affect the quality of life of residents and cause considerable economic costs. Artificial intelligence (AI) offers an innovative solution to make traffic more efficient and minimize congestion. By analyzing large amounts of data and using machine learning algorithms, AI can optimize traffic flows in real time, dynamically adjust routes and make predictions that make cities smarter and more sustainable.

Fun fact: According to a study by the INRIX traffic analysis service, drivers in major cities worldwide spend an average of 100 hours per year in traffic jams – time that could be significantly reduced by AI.

AI-supported traffic control is based on a combination of different technologies that work together to analyze and optimize traffic flows.

Data analysis and big data

AI systems use large amounts of data from various sources, including traffic cameras, IoT sensors, navigation apps and social media. This data is analyzed in real time to identify patterns and bottlenecks.

Machine Learning

Machine learning (ML) algorithms enable AI systems to learn from past traffic patterns and create predictive models for future traffic flows. With each new data set, the predictions become more precise.

Simulations and real-time optimization

Real-time simulations can be used to create traffic models that test different scenarios and provide optimized solutions in seconds. AI dynamically adapts traffic lights, route recommendations and public transport plans to the current situation.

Practical example: In Munich, an AI system uses traffic monitoring data to optimize traffic light changes in real time, which has reduced waiting times at intersections by 20%.

The potential applications of AI in traffic management are diverse and offer solutions for various urban mobility problems.

Dynamic traffic light control

AI-supported traffic light systems automatically adapt their timing to traffic flows. Sensors record the traffic density and the AI calculates the optimum duration of green and red phases to make traffic flow more smoothly.

Route optimization

Navigation systems that work with AI offer drivers not only the shortest, but also the most efficient route based on real-time data and forecasts. This reduces congestion and saves time and fuel.

Predicting traffic flows

AI analyzes historical and current traffic data to predict when and where bottlenecks might occur. Cities can use this information to plan preventative measures such as detour or additional lanes.

Integration with local public transport

AI helps to dynamically adapt public transport timetables and routes. If traffic increases, capacity can be increased by adding additional buses or trains.

Real-life example: In Singapore, an AI-supported traffic management system uses data from more than 5,000 sensors to minimize congestion and prioritize public transport.

The use of AI in transportation offers numerous advantages that are noticeable for both cities and road users.

Increased efficiency

AI improves the efficiency of traffic flows by reducing congestion and shortening journey times. This saves time and reduces operating costs.

Reduction of emissions

By reducing congestion and optimizing routes, AI helps to reduce fuel consumption and CO₂ emissions.

Increasing safety

AI-supported systems can detect and warn of dangers such as accidents or sudden obstacles at an early stage. This increases safety for all road users.

User-oriented mobility

AI offers personalized solutions that are tailored to the needs of individual road users, e.g. by recommending alternative routes or integrating different modes of transport.

Expert opinion: According to a study by McKinsey, AI-supported traffic management systems could reduce the average congestion time in cities by up to 30 %.

Despite the numerous advantages, there are challenges that need to be considered when implementing AI-based transportation systems.

Data protection and data security

The use of AI requires large amounts of traffic data, including personal information. Cities need to ensure that this data is protected and processed in compliance with GDPR.

Infrastructure requirements

The introduction of AI systems requires a modern infrastructure, including IoT sensors, high-performance computers and reliable communication networks such as 5G.

Acceptance and trust

The introduction of new technologies requires public acceptance. Many people are skeptical about AI, especially when it comes to the safety and reliability of the systems.

Ethical issues

AI systems make decisions based on algorithms, which raises ethical questions, e.g. how priorities should be set in emergencies.

Expert opinion: According to a survey by the Smart Cities Council, 40% of cities consider infrastructure costs and 35% data security to be the biggest challenges when introducing AI systems.

Singapore: Intelligent traffic management

Singapore is a pioneer in the use of AI in traffic management. The “Smart Mobility 2030” program uses AI to analyze traffic flows and dynamically adjust traffic light circuits.

Los Angeles: predictive traffic control

In Los Angeles, AI is used to predict traffic patterns and reroute traffic in busy areas. The technology has reduced average journey times by 12%.

Munich: Real-time traffic light systems

In Munich, an AI-based system optimizes the switching of over 200 traffic lights to improve traffic flow and minimize waiting times at intersections.

The development of AI-based transport systems is progressing and new innovations will continue to revolutionize urban mobility.

  1. Autonomous mobility: AI will be used in self-driving cars to autonomously control traffic flows and reduce congestion.
  2. V2X communication: Vehicles could communicate with infrastructure and other road users to make real-time traffic decisions.
  3. Predictive analytics: AI will be able to not only predict traffic bottlenecks, but also prevent them by taking preventive action.
  4. Integration with IoT and blockchain: IoT devices and blockchain could be used together with AI to make traffic management systems safer and more efficient.

Future outlook: In a pilot project in Dubai, AI is being used to manage all inner-city traffic. The aim is to reduce average journey times by 25 % by 2030.

Artificial intelligence is a powerful tool for overcoming the challenges of urban mobility. By optimizing traffic flows, reducing emissions and increasing safety, AI helps to make cities more sustainable and liveable. Despite the challenges, particularly in terms of data protection and infrastructure, AI offers enormous opportunities to manage the traffic of the future efficiently and intelligently.

Concluding thought: The integration of AI into traffic management is a decisive step towards connected, sustainable and user-oriented mobility. A future without traffic jams starts with AI.

By the way: the “Climate Active Municipality 2024” competition rewards exemplary climate protection projects in German cities and municipalities with a total of 240,000 euros.

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IBA Basel Specialist publication from the G+L editorial team

IBA Basel Specialist publication from the G+L editorial team

With the end of IBA Basel Expo at the beginning of June 2021, the International Building Exhibition Basel 2020 officially came to an end and with it the first effective International Building Exhibition in the border triangle between Germany, France and Switzerland. Everything you need to know about IBA Basel can be found here.

With the end of the IBA Basel Expo at the beginning of June 2021, the International Building Exhibition Basel 2020 officially came to an end and with it what was effectively the first International Building Exhibition in the border triangle between Germany, France and Switzerland. A closing film now summarizes the goals and developments of IBA Basel 2020.

The IBA Basel was the first International Building Exhibition to address the topic of spatial planning in border regions. International Building Exhibitions are a special format for urban and regional development. They are a hallmark of national building and planning culture. For more than a century, these experimental fields have brought current issues of planning and building to the forefront of national and international debate.

The origins of the IBA Basel date back to 2008, when everything began with the so-called first “draft memorandum”. This was drawn up by the Department of Construction and Transport of the Canton of Basel-Stadt together with the Trinational Eurodistict Basel TEB. In 2009, the TEB worked out the challenges and opportunities of trinational fragmentation and published these in the 2020 development strategy “A Future for Three”. In the strategy, it identified the main spatial planning objectives of “settlement development”, “transport development” and “landscape planning” as well as the “interactions with the areas of economic and population development” and “governance” and “financing of major metropolitan projects”. In 2010, the political players in the region jointly proclaimed the Basel International Building Exhibition.

2020: 20 projects with the IBA Basel label

In the ten years that followed, the IBA Basel put the shared responsibility for the agglomeration into concrete terms in projects, buildings, infrastructure and landscapes and provided impetus for a cross-border culture of cooperation, in line with the official IBA motto “Au-delà des frontières, ensemble – Growing together across borders”. Under the direction of Monica Linder-Guarnaccia, the IBA in the border triangle saw itself as an instrument of change. From 130 project proposals, the IBA team and a large number of stakeholders from the administration and interest groups launched 43 cross-border projects. A total of 20 of these were officially labeled as IBA projects in 2020.

To the memorandum of the IBA Basel

The memorandum of the IBA Expert Council describes the basis for implementing an IBA in ten recommendations. Precisely because the IBAs have no fixed regulations, their significance for building culture and urban development in a regional, national and international context must be constantly reviewed.

About the IBA Expert Council

The IBA Expert Council supports and advises the current IBAs and ensures that the developments, structures and content of the IBAs are in line with the quality criteria set out in the Memorandum. It also accompanies the preparatory phases of the IBA initiatives. The IBA Expert Council was appointed by the Federal Ministry of Building. Read more about the Expert Council here.

The initial situation of the International Building Exhibition Basel was that of a fragmented agglomeration. The central IBA task was to harmonize the different submission rights, legal bases, internal administrative processes, decision-making powers and financing models of the three participating countries and, last but not least, to build up intercultural competence. This was no easy task and without an understanding of the different mentalities and hierarchies, the implementation of real cross-border projects on an equal footing with the other party would not have been possible. In the course of the IBA in the border triangle, a paradigm shift took place in cross-border cooperation between German, French and Swiss stakeholders. The border region grew together on a political, economic and cultural level during the IBA years.

A budget of twelve million euros instead of one billion

Getting there was an adventure and many a stone had to be cleared away. The IBA in the three countries had to work with the different cultural influences of the three countries, the economic discrepancy between the flourishing economic metropolis of Basel and the agglomeration and the bilingualism – German and French. Above all, however, financing was a constant problem. Despite the support of 27 financing municipalities, the available budget remained far underfunded. The IBA Basel worked with twelve million, while the IBA Hamburg received one billion euros.
The planned three-year financing of the IBA Basel office and its project development fund placed additional demands on the ten-year project throughout its entire duration. This also became part of a recurring search for consensus, added value and return on investment.

The IBA in the border triangle is not an architectural showcase in the traditional sense and has therefore been criticized several times in the past. According to critics, the lighthouse projects traditionally built for an IBA are missing. And yes, the International Building Exhibition Basel is not characterized by building construction projects. Rather, it defines a new era for the format of the International Building Exhibition itself. The background: unlike its predecessors – such as the IBA Stadtumbau in Saxony-Anhalt, the IBA See in Lusatia or the IBA Emscher Park – the Basel International Building Exhibition is not taking place in a traditionally structurally weak area.

The IBA of processes

The Basel region has been flourishing for decades with financially strong companies such as Novartis and Roche. The IBA in the border triangle did not arise out of an emergency situation. The challenge of the International Building Exhibition Basel was to establish a tri-national planning culture between more than 64 regional authorities and numerous private stakeholders over ten IBA years and to launch outstanding cross-border projects in a rolling process. The International Building Exhibition Basel is therefore an IBA of processes. This difference has not made it easy for it. In contrast to building construction projects, process innovation is difficult to present.

Out of 130, 20 projects prevailed

An International Building Exhibition puts social, future living environments up for discussion. It must have a message and this must be significant for other regions, it must be transferable. The International Building Exhibition Basel has shown internationally how measures to strengthen and develop a border region can be implemented together. The Basel International Building Exhibition shows how beneficial it is to take the needs of the other party into account. It has shown how participation and an interdisciplinary approach can increase project quality, even if they take more time and are more complex. The 20 labeled IBA projects together with the IBA project groups and the nominated projects speak for themselves.

IBA Basel closing film

The finissage on June 4, 2021 marked the official end of the IBA Basel Expo and with it the International Building Exhibition Basel. Together with the IBA Presidium, IBA Basel Managing Director Monica Linder-Guarnaccia invited guests to reflect on the findings of ten years of the IBA process and look ahead to the future development of the region.

Spatial planning development across national borders was the focus of the International Building Exhibition Basel. No IBA before the IBA Basel had ever dealt with this topic in this way. The special focus, objectives and developments of the IBA Basel are now summarized in a closing film for the IBA Basel 2020.

Garten + Landschaft provided information online about the projects, their creators and the IBA’s goals. The findings of the first cross-border International Building Exhibition in the border triangle of Germany, France and Switzerland have resulted in the publication “IBA Basel 2020. Crossing borders together” in German and French, which is well worth reading. Find out more here.

Our colleagues at Baumeister also celebrated with a special Baumeister issue on IBA Basel 2020 in May.

Observation tower at Lake Seljord

Building design

At Lake Seljord in the Norwegian province of Telemark, home to a sea monster called Selma, landscape architects and architects planned a “sea snake tower” as part of the “Seljord and its legends” project.

Building in a picturesque landscape is a delightful task. The planners set the scene, the landscape accentuates small buildings. On October 18, a new observation tower, the “Sea Snake Tower”, was opened on Lake Seljord in Norway. It is part of the Skiensvassdraget river system and the culmination of a series of landscape-based interventions placed around the lake as part of the “Seljord and its Legends” project by Feste Landscape Architects, Rintala Eggertson Architects and Springer Kulturstudio, all from Norway. The 15-meter-high tower opens up to the surrounding landscape at different heights. Viewing platforms on the various levels offer views of the landscape. The municipality of Seljord has just under 3,000 inhabitants and is located in the Norwegian province of Telemark. A sea monster called Selma is said to have been sighted for the first time in Seljordsvatn, a lake that lies partly within the municipality, as early as 1750. This is why the coat of arms of Seljord, developed in 1989, shows a yellow sea serpent on a red background. The creature in Lake Seljord is said to be between four and 50 meters long, have a horse or crocodile-like head and appear pitch black. There is also talk of a pair of front fins and humps. The projects of “Seljord and its legends” are documented in Topos 74.Buildings in special places are also the theme of the November issue of Garten + Landschaft. The magazine presents a selection of successful buildings as well as viewing platforms, towers, footbridges and bridges.


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Photos: Dag Jenssen