Stuttgart cycle highway: bicycle highway at height

Building design
Baden-Württemberg wants to drive forward the traffic turnaround with high-speed cycle paths. Image source: urb-x.ch

Baden-Württemberg wants to drive forward the traffic turnaround with high-speed cycle paths. Photo: urb-x.ch

Together with the Swiss start-up Urb-x, the city of Stuttgart wants to build a cycle highway at a height of five meters. The prototype is currently being built in Basel. Find out how the “plug-in system” made of prefabricated wooden modules works, what the associated solar modules are for and everything about the route in Stuttgart here.

Together with the Swiss start-up Urb-x, the city of Stuttgart wants to build a cycle highway at a height of five meters. The prototype is currently being built in Basel. Find out how the “plug-in system” made of prefabricated wooden modules works, what the associated solar modules are for and everything about the route in Stuttgart here.

According to Winfried Hermann, Transport Minister of Baden-Württemberg, a one-kilometre-long cycle highway is to be built in the Stuttgart region. A Swiss start-up is to improve the cycling infrastructure. The plan is to build a cycle highway five meters above the road. This dedicated lane would only be accessible for bicycles and not for cars or pedestrians. It would have two lanes and no crossings.

The “Bike Highways” project is inspired by other cycle highways such as the Xiamen Skyway in China. This bicycle bridge is almost eight kilometers long and spans busy roads. The project in southwest Germany will consist of prefabricated wooden modules provided by the Basel-based start-up Urb-x. These highways also have solar panels that can produce electricity for several hundred households per kilometer of road. The state government of Baden-Württemberg wants to work with the company to make everyday cycling more pleasant in large cities such as Stuttgart.

In 2022, Minister President Winfried Kretschmann and Transport Minister Winfried Hermann, both from the Green Party, visited Basel to take a closer look at the bike highways produced there. According to Kretschmann, these could solve congestion problems, particularly in the Stuttgart area. The cycle highway projects are currently still at the preliminary planning stage. The Ministry of Transport would like to have at least one pilot project completed by the IBA 2027.

Simple cycle lanes or cycle paths are not sufficient to create the necessary space for cyclists, especially in city centers. Converting existing roads quickly leads to conflicts. This is why the company Urb-x is hoping to remedy the situation with infrastructure in the air. The highways offer lanes in both directions, have a non-slip surface and can be heated so that they can also be used in winter.

According to Urb-x, this can save up to 3,000 tonsof CO2 per kilometer of road compared to concrete construction. In addition, the solar panels on the high-speed cycle route could produce enough electricity for 100 to 200 households per kilometer. The company’s simulations show that a cycle express infrastructure could switch up to 50 percent of all commuter routes to bicycles.

The test route for the high-speed cycle paths in Baden-Württemberg is to be built in the Stuttgart region. It is not yet clear when construction will start.

There is a great need to catch up on cycling infrastructure in view of the cycling boom. Existing roads are often not suitable for creating efficient cycle paths without too many junctions. There are also political problems. In Baden-Württemberg, for example, Minister Hermann sees lengthy coordination processes, planning approval procedures and objections as the reasons for the stalled expansion of cycle highways. The minister has now announced that he will monitor the processes more closely and regularly review the status of the projects.

The highway project, which would complement the cycle highways in Stuttgart and the surrounding area, is still in the starting blocks. Experts from the Baden-Württemberg Ministry of Transport have doubts about the durability of the wood used, among other things. Mold in particular is a concern, as rainfall could lead to mold and wood damage.

Another unanswered question is the cost of the cycle highways in Stuttgart in general and the presumably higher costs for the roadways in terms of height. The next steps are to take a closer look at the prototype being built in Basel and to carry out further studies.

The planned high-speed cycle path would complement the planned cycle paths. Highways would provide additional space, especially in cities. The state of Baden-Württemberg would like to build a total of 20 cycle highways, each 20 to 30 kilometers long. This is expected to cost around half a billion euros. According to Minister Kretschmann, the cycle highways are the only way to tackle the congestion problem in cities such as Stuttgart. In addition, the cycle paths, especially the wooden highways, help people to move in a more climate-friendly way and get through the city quickly.

Ideally, there should be no intersections in the way of really fast cycling through a city. The existing high-speed cycle path from Mannheim to Heidelberg shows that fast-moving cycle traffic is easily possible. However, it is currently still difficult to route the cycle highway through the city center of Heidelberg. Such problems can be solved by building at height.

According to Kretschmann, bridges are more expensive than building cycle paths on the ground. But where there is no space, wooden elevated roads are an interesting solution in certain places. Using wood from the region in a modular design guarantees quick construction and easy maintenance.

Incidentally , an elevated cycle path is also to be built in Sabbionetta, Italy. This is not only located between the trees, but is also supported by them. The project is called Tree Path.

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Affordable housing alliance launched

Building design
Goals of the Ampel coalition: 400,000 new apartments per year, 100,000 of which are publicly subsidized. (Photo: Di on Unsplash)

Goals of the Ampel coalition: 400,000 new apartments per year, 100,000 of which are publicly subsidized. (Photo: Di on Unsplash)

The Alliance for Affordable Housing, with around 50 participants, met for the 1st Alliance Summit on April 27, 2022.

“A new departure in building, housing and urban development policy” is the motto of the coalition agreement between the traffic light parties. The words are now to be followed by action. An affordable housing alliance with around 50 participants met for the first alliance summit on April 27, 2022.

In a fair society, everyone should be able to afford a home. However, this is far from being the case everywhere in Germany. One thing is certain: more affordable and climate-friendly housing is needed. The coalition government has set itself ambitious targets to achieve this: 400,000 new homes are to be built every year. Of these, 100,000 apartments are to be publicly subsidized.

This intention is set out in the coalition agreement. The “Alliance for Affordable Housing”, which is based at the new Federal Ministry of Housing, Urban Development and Building (BMWSB), was set up to implement the ambitious targets. Together with the alliance, the ministry states that it wants to “initiate a construction, investment and innovation offensive in Germany”.

The Alliance for Affordable Housing began its workon April 27, 2022. It consists of 35 permanent members, including representatives of the federal states, municipal umbrella organizations, housing and construction industry associations and civil society organizations. Specialist guests are also regularly invited to provide advice. Support from the Bundestag is provided by twelve permanent, advisory guests from the parliamentary groups of the governing coalition.

The kick-off meeting took place at the EUREF Campus in Berlin-Schöneberg. High-ranking representatives of all governing parties, the federal states of Baden-Württemberg, North Rhine-Westphalia, Hamburg and Hesse, municipal umbrella organizations, industry and business associations as well as civil society and churches took part.

Affordable Housing Alliance: kick-off event in April 2022

The first Alliance summit was convened by Federal Building Minister Klara Geywitz (SPD) and consisted of the minister and top representatives of the associations. Prior to this, there were Alliance working rounds with the various Alliance members. They worked out the goals and content, the working structures and the timetable for the alliance process.

There was also a lot of criticism. For example, the umbrella organization of the German housing industry described the government’s housing targets as “illusory”. According to GdW President Axel Gedaschko, material bottlenecks, exploding energy costs, supply chain problems, rising interest rates and the uncertainty surrounding new construction subsidies from 2023 are combining to prevent the construction of affordable housing.

Minister Geywitz told dpa ahead of the meeting: “It’s about getting through a big hole: we have a huge need for housing in Germany, especially affordable housing. […] We also need the support of the construction industry, which needs to significantly expand its capacities but is under pressure due to rising construction costs and material shortages.”

According to Geywitz, almost 800,000 apartments in Germany have currently been approved but not yet built. Obstacles to planning are one reason for the slow progress.

Densification as a strategy

A draft of the final declaration of the Alliance for Affordable Housing shows that new housing is to be created primarily in conurbations. In this context, densification of existing housing plays a much greater role than new buildings or new construction areas.Filling gaps between buildings, adding storeys to houses and converting commercial buildings into apartments offer opportunities to densify German cities in an efficient and climate-friendly way.

However, according to the German Construction Industry Association, the ambitious targets do not match reality. The war in Ukraine and the ongoing consequences of the coronavirus pandemic are causing material shortages, price increases and significantly higher energy prices. As a result, certain projects have to be prioritized.

There is also criticism from politicians: Jan-Marco Luczak, the CDU/CSU housing expert, criticized the lack of solutions proposed by the alliance and noted that valuable time could be lost through theoretical debates.

Caren Lay from the left-wing parliamentary group, on the other hand, criticized the fact that many expensive luxury and owner-occupied apartments would be built, which would not be able to solve the problem of affordable housing. Instead, she suggested that only social housing should be built in inner cities with a tight housing market from now on.

A new entrepreneurial spirit?

The leading association of the real estate industry, the German Property Federation (ZIA), called for a new entrepreneurial spirit at the kick-off meeting of the Alliance for Affordable Housing. According to President Dr. Andreas Mattner, this should serve as a response to the accumulation of the pandemic, Ukraine and climate crisis.

“Construction costs have exploded to an unprecedented extent, construction companies are barely able to keep to their contracts, interest rates are skyrocketing, subsidies are being cut and efficiency requirements are set to increase. And all of this with a need not just for 400,000 new apartments per year, but – due to the admission of hundreds of thousands of refugees – for 500,000 to 600,000 apartments. It is no longer possible without bold cuts: We need a regulatory freeze and the suspension of time-consuming approval procedures. The commendably swift extension for refugee buildings is a very good first step. Next, we need a banking summit to find measures to counter the rise in interest rates and a materials and supply chain summit. The real estate industry must be able to participate in these crucial decisions,” says Mattner.

“Furthermore, we need a degressive depreciation as well as serial and modular construction that is not only talked about, but also implemented across the board. The challenges seem almost impossible to solve – but crises also present an opportunity for change and we all have a duty to push for this,” he added.

A house for contemporary art

Building design

Almost 50 years ago, the then still very young publisher Gerhard Steidl had the idea of building an exhibition house for contemporary art in Göttingen, the city of his birth. Now the Kunsthaus Göttingen is being realized Gerhard Steidl creates book art at the highest level. His aim – whether fashion, art or literature – is to bring the ideas of artists […]