Car sharing: a sustainable alternative to private car ownership

Building design

Car sharing can thus make a decisive contribution to the transport transition - towards sustainable, shared mobility that combines individual flexibility with ecological responsibility. Photo by LJ Parchaso on Unsplash

In recent years, car sharing has established itself as an important component of sustainable transportation concepts. It offers an environmentally friendly and economical alternative to private car ownership and contributes to reducing the number of vehicles and environmental pollution. This report sheds light on how car sharing works, analyzes its environmental benefits and economic aspects and uses current statistics and practical examples to illustrate how car sharing contributes to more sustainable mobility.

Car sharing allows users to rent vehicles temporarily without the commitment of owning a vehicle. There are two main car sharing models in Germany: station-based and free-floating car sharing.

Station-based car sharing: Vehicles are located at fixed stations. Users book a vehicle in advance, collect it from the relevant station and return it there after use. This model is particularly suitable for planned journeys and longer rental periods.

Free-floating car sharing: Vehicles are freely distributed within a defined area. Users can spontaneously locate an available vehicle via an app, book it and park it in any legal parking space within the business area after use. This model offers a high degree of flexibility and is suitable for spontaneous, shorter journeys.

Car sharing helps to reduce environmental pollution by cutting the need for private vehicles and thus reducing the overall number of vehicles. Studies by the Bundesverband CarSharing e.V. (bcs) show that one car sharing vehicle can replace up to 20 private cars. This not only leads to fewer vehicles on the roads, but also to more efficient use of existing vehicles.

Car sharing also encourages the use of other environmentally friendly means of transportation. Users of car sharing services often combine different forms of mobility such as public transport, cycling or walking. This leads to lower overall car mileage and thus to a reduction in CO₂ emissions.

For many users, car sharing is also attractive from an economic point of view. The costs of purchasing, insuring, servicing and maintaining their own vehicle are eliminated. Instead, car sharing users only pay for the actual use of the vehicle. According to the Federal Environment Agency, car sharing is particularly worthwhile for people who drive less than 14,000 kilometers per year. In many places, owning a second or third car can be replaced by participating in car sharing for environmental and cost reasons.

Companies also benefit from car sharing offers. By using car sharing vehicles, they can reduce the number of company-owned vehicles and thus save costs for acquisition, maintenance and administration. In addition, car sharing enables flexible adaptation of vehicle requirements to current needs.

The car sharing industry in Germany is growing steadily. At the beginning of 2022, 243 providers in 935 locations in Germany provided 30,200 car sharing vehicles. As of January 1, almost 3.4 million eligible drivers were registered with at least one car sharing service – 18% more than in the previous year.

The city of Karlsruhe is a remarkable practical example. There, the close cooperation between the city administration and the car sharing provider Stadtmobil has led to a nationwide service. With over 1,000 vehicles and a high user density, Karlsruhe is considered a pioneer in Germany. This successful model shows how a sustainable traffic turnaround can be achieved through the targeted promotion and integration of car sharing into the urban mobility concept.

Car sharing integrates seamlessly into sustainable transportation concepts and promotes so-called “shared mobility”. The combination of car sharing with other environmentally friendly means of transport such as local public transport, cycling and walking creates a diverse range of mobility options that can make individual car ownership superfluous. This integrated mobility concept not only reduces traffic, but also the associated emissions, thus contributing to the achievement of climate targets.

One example of the successful integration of car sharing into a sustainable transport concept is the city of Bremen. There, car sharing has been included as an integral part of the city’s mobility strategy. By providing car sharing vehicles at central public transport hubs and creating incentives for car sharing users, private car ownership has been significantly reduced. This model serves as an example for many other cities.

Despite the positive developments, car sharing faces challenges. Demand is often lower in rural areas, which makes it difficult for car sharing services to be economically viable. In addition, car sharing in urban areas competes with the continuing high status value of private car ownership.

Nevertheless, technological developments and political measures offer promising prospects for the future. Increasing digitalization and networking enable better integration of car sharing into multimodal mobility platforms. This allows users to book and combine different modes of transportation – from public transport to e-scooters and car sharing vehicles – in a single app.

In addition, many providers are increasingly focusing on electric vehicles in order to further improve their ecological footprint. Cities such as Hamburg and Munich are already specifically promoting electric car sharing fleets by providing charging infrastructure and special parking zones.

Another success factor is support from local authorities. Cities that integrate car sharing into their mobility strategies benefit from reduced traffic congestion, lower emissions and more efficient land use management. Municipal support programs and cooperation with private providers could further increase the spread.

Car sharing is a sustainable and economically attractive alternative to private car ownership. It reduces the number of vehicles, cuts emissions and supports the development of liveable cities with less traffic and more space for alternative forms of mobility.

However, further measures are required to exploit the full potential of car sharing. These include the expansion of infrastructure, the promotion of electromobility and greater integration into overarching mobility concepts. Cities, companies and politicians are called upon to create incentives for use and further increase acceptance among the population.

Car sharing can thus make a decisive contribution to the transport transition – towards sustainable, shared mobility that combines individual flexibility with ecological responsibility.

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Large Landscape Gardens: Fundamentals, History, and Significance

Building design
A landscaped garden and park complex designed around the theme of the Grand Landscape Garden
A street with flowers planted along a concrete wall—an example of urban greening. Photo: rumanamin/Unsplash

Anyone who enters a large landscape garden experiences nature as a work of art: vast lawns that gently give way to groups of trees, winding paths that continually draw the eye in new directions, bodies of water that reflect the sky, and sightlines that stretch across hills and valleys. The large landscape garden is one of the most influential inventions in European garden design—a design philosophy that, since the 18th century, has fundamentally redefined the relationship between people, nature, and space, and continues to shape open-space planning to this day.

  • What defines a grand landscape garden and how it differs from other types of gardens
  • How the landscape garden emerged historically and which intellectual movements shaped it
  • Which design principles and design elements underlie the landscape garden
  • What plant selection and vegetation techniques are characteristic of large-scale landscape gardens
  • How care, maintenance, and historic preservation are organized for historic landscapes
  • The significance of the landscape garden for contemporary urban development and open-space planning
  • What common misunderstandings and mistakes occur in planning and maintenance
  • How large-scale landscape gardens are being reevaluated in the context of climate adaptation and biodiversity

Definition and Classification: What Is a Large Landscape Garden?

The large landscape garden, known in English-speaking countries as a “landscape garden” or “English landscape garden,” is a type of open space that deliberately eschews the formal, geometric garden design of the Baroque and Renaissance periods and instead takes an idealized natural landscape as its design basis. It is characterized by meandering paths and shorelines, freely shaped bodies of water, irregularly arranged groups of trees and shrubs, expansive lawns, and a carefully staged sequence of spatial impressions. The word “large” refers not only to the area—which in fact often spans several hundred to over a thousand hectares—but also to the conceptual aspiration: the garden as a reflection of a complete, internally coherent landscape.

The large landscape garden differs fundamentally from the Baroque palace garden in its design logic. While the Baroque garden controls and organizes nature through symmetry, axes, parterres, and topiary (the pruning of trees and shrubs into geometric shapes), the landscape garden simulates the random, the organic, and the picturesque. This simulation, however, is by no means random: It is based on precise design decisions and the deliberate use of topography, vegetation, water, and architecture to create specific moods, visual relationships, and spatial experiences. In this sense, the landscape garden is a highly refined art form that conceals its methods.

Typologically, the large landscape garden can be distinguished from smaller landscape-style home gardens, 19th-century public parks, and modern city parks, even though all these types have emerged from it or been influenced by it. The decisive difference lies in scale and intention: the large landscape garden is a total work of art that reinvents an entire landscape, whereas the 19th-century city park primarily served social and hygienic purposes, and the landscape-style private garden merely borrows formal elements.

Historical Origins: England, the Enlightenment, and Criticism of the Baroque

The roots of the grand landscape garden lie in early 18th-century England, where a combination of philosophical, literary, and political currents gave rise to a new aesthetic of nature. The Enlightenment, with its trust in reason and the observation of nature, stood in productive tension with the contemporary longing for the sublime and the picturesque—that is, for landscapes that evoke awe, vastness, and irregularity. Poets such as Alexander Pope, philosophers such as Anthony Ashley Cooper, the third Earl of Shaftesbury, and painters such as Claude Lorrain and Nicolas Poussin—whose landscape paintings served as direct models—shaped the aesthetic program of the new garden style.

The gardens at Stowe (Buckinghamshire), Stourhead (Wiltshire), and Rousham (Oxfordshire) are considered key early examples. At Stowe, Charles Bridgeman, William Kent, and finally Lancelot “Capability” Brown—who would become the most influential landscape architect of the 18th century—worked in succession. Brown earned his nickname “Capability” from his habit of identifying the “capabilities” of a site for improvement. His style, characterized by meandering lakes, gently undulating lawns, clusters of trees, and belts of trees along the edges, became the epitome of the English landscape garden and influenced hundreds of gardens throughout Great Britain.

At the same time, a theoretical debate developed about the picturesque, led primarily by William Gilpin, Uvedale Price, and Richard Payne Knight. These authors criticized Brown’s style as too smooth and too orderly and called for a rougher, wilder garden aesthetic more closely aligned with painting. This debate is important for understanding the grand landscape garden because it shows that the style was not a uniform doctrine but a dynamic field of aesthetic debate.

The landscape garden style reached Germany in the second half of the 18th century, initially through travelogues and publications, then through direct commissions of English gardeners and the work of local designers such as Friedrich Ludwig von Sckell, who laid out the English Garden in Munich, and Peter Joseph Lenné, who had a decisive influence on the Potsdam park landscape surrounding the New Garden and Sanssouci Park. Prince Franz von Anhalt-Dessau created the Wörlitz Park, the first significant landscape garden project on German soil, which is now a UNESCO World Heritage Site. In these German gardens, the English landscape style is often combined with Enlightenment-era educational programs: temples, inscriptions, monuments, and symbolic structures transform the garden into a walk-through total work of art with a moral and political message.

Design Principles and Design Elements of the Grand Landscape Garden

The grand landscape garden employs a range of design elements that, when combined, create its characteristic spatial experience. The most important element is the staging of visual relationships: the path through the garden is a sequence of images that the designer has deliberately composed. Axial views open up onto temples, bridges, or bodies of water; groups of trees and shrubs frame vistas and block unwanted views; hills and depressions create moments of surprise when, after an ascent, a sweeping view suddenly opens up.

Water plays a central role. Natural or artificially created lakes and ponds with irregular, curved shores are a hallmark of the style. Capability Brown was famous for transforming rivers into expansive lakes through damming, which gave the impression of natural bodies of water. The reflection of the sky and the surrounding vegetation on the water’s surface significantly enhances the sense of depth in the space. Bridges, islands, and shoreline plantings complement the body of water as design elements.

Vegetation is conceived not as individual plants but as mass and volume. Solitary trees—that is, freestanding individual trees with distinctive shapes or sizes—provide focal points within the lawn. Groups of trees and shrubs of varying sizes and compositions structure the space and create a layering of foreground, middle ground, and background reminiscent of landscape painting. Belts of trees and shrubs along the garden’s edges enclose the grounds from the outside and create the impression of a self-contained world. The lawn itself, referred to in the original English as “lawn,” is not merely leftover space but a design element: it connects the groups of trees and shrubs, guides the eye, and gives the garden its sense of expansiveness.

Architectural features—such as temples, grottoes, ruins, bridges, obelisks, and similar structures—complete the picture. They are not functional buildings but rather convey meaning: they allude to ancient models, literary themes, or the client’s worldview. Ruins, whether genuine or artificially created, are a particularly characteristic element because they symbolize transience and the superiority of nature over human creation—a central theme of Enlightenment aesthetics.

Plant Selection and Vegetation Design in the Landscape Garden

The use of plants in large landscape gardens follows different principles than in formal gardens. The focus is not on the individual plant with its botanical characteristics, but on the effect of the mass of plants within the space. For woody plantings, native tree species were and continue to be used predominantly; in Central Europe, these include oak, beech, hornbeam, linden, ash, maple, and alder, supplemented by introduced species such as plane tree, horse chestnut, and various conifers, which have been widespread in European landscape gardens since the 18th century.

Creating woody plantings in the landscape garden style requires thinking in terms of long time frames. A tree planted today as a solitary specimen will not fully unfold its spatial impact until decades later. Capability Brown is said to have remarked that he worked for posterity, not for the present. This temporal dimension is a fundamental difference from architecture: the landscape garden is never finished; it changes continuously through the growth, aging, and loss of trees and shrubs. Professional care and maintenance must guide this process without destroying the original design concept.

The lawns of historic landscape gardens were originally maintained through grazing by sheep and cattle, which also served an ecologically valuable purpose. With the invention of the lawn mower in the 19th century and the increasing mechanization of maintenance, maintenance practices changed fundamentally. Today, those responsible for maintenance face the challenge of balancing the preservation of the historic character, the demands of visitor use, and the goals of promoting biodiversity. Extensive meadow management with infrequent mowing, the creation of wildflower strips, and the promotion of old-growth wood in groups of trees and shrubs are strategies that are increasingly being incorporated into modern maintenance concepts for historic landscape gardens.

The introduction of exotic woody plants, particularly rhododendron species and conifers from North America and East Asia, was a significant expansion of the plant repertoire in the 19th century. Many historic landscape gardens today contain significant collections of these species, which have since acquired historical value in their own right. At the same time, Rhododendron ponticum has become an invasive problem in Atlantic-influenced regions of Great Britain and Ireland, threatening the ecological integrity of historic sites. This tension between historical authenticity and ecological responsibility is a central theme in today’s preservation of landscape gardens.

Maintenance, Preservation, and Management Concepts for Historic Sites

Historic landscape gardens pose special challenges for heritage conservation because their heritage value lies not in solid materials but in a living, ever-changing composition of vegetation, topography, water, and architecture. The challenge lies in preserving the spirit of the original design without freezing the growth of the vegetation or reducing the site to an artificial state. Maintenance concepts for historic landscape gardens must therefore be based on a careful historical analysis that evaluates sources such as original plans, paintings, engravings, travelogues, and plant lists.

In Germany, historic garden conservation has established itself as a distinct discipline situated at the intersection of landscape architecture, historic preservation, and garden history. The Florence Charter, a document adopted in 1981 by the International Council on Monuments and Sites (ICOMOS), defines principles for the preservation of historic gardens and parks. It emphasizes that the historic garden is a living monument that requires continuous care, and that restoration measures must be based on documented sources.

Practical maintenance tasks in historic landscape gardens include the regular inspection and care of tree and shrub populations, the preservation and restoration of water features and ornamental structures, the maintenance of lawns and paths, and the management of visitor flows. The latter is a particularly complex task in heavily visited sites such as the English Garden in Munich or Sanssouci Park in Potsdam, where user needs, historic preservation, and ecological goals must be balanced. Foot traffic, soil compaction, and damage to the root systems of old trees caused by visitors are real threats that are mitigated through route guidance, signage, and, if necessary, temporary closures.

Significance for Contemporary Open-Space Planning, Climate Adaptation, and Biodiversity

The large landscape garden is not a museum relic, but rather a reference model that remains highly relevant for today’s open-space planning and urban development. Its fundamental principles—the linking of open spaces into contiguous green spaces, the use of topography and water as design elements, and the creation of spatial diversity through the alternation of open and enclosed areas—are reflected in modern concepts such as the Green Belt, Green Infrastructure, and the 21st-century city park.

In the context of climate adaptation, this type of landscape garden offers specific advantages. Extensive stands of trees and shrubs create cooling effects through evaporation and shading, which are increasingly in demand in overheated cities. Extensive lawns and water bodies help regulate the urban water cycle by absorbing, temporarily storing, and gradually releasing rainwater. The topography of many historic landscape gardens—with hollows, depressions, and ponds—corresponds in its basic structure to the principle of the “sponge city” (a concept of water-sensitive urban planning), which is currently being discussed as a response to increasing heavy rainfall events.

For biodiversity, large-scale landscape gardens—with their stands of mature trees, extensive lawns, bodies of water, and wooded edges—serve as valuable habitats. Old oaks, beeches, and linden trees, with their hollows, cracks, and dead branches, provide habitat structures for bats, woodpeckers, beetles, and numerous other species that can hardly find a place in intensively used urban landscapes. Promoting deadwood, adopting a more extensive approach to lawn care, and creating riparian buffer zones are measures that can enhance the ecological value of historic landscape gardens without compromising their character.

At the same time, open-space planning must critically reflect on what the grand landscape garden historically also was: an instrument of land acquisition and social segregation. Many of the most significant English landscape gardens were created through the enclosure and transformation of common land—a process that displaced villages and dispossessed farmers. This socio-historical dimension is essential to a complete understanding of the type, even if it does not negate its aesthetic and ecological value.

The Grand Landscape Garden as an Enduring Design Model

The large landscape garden established a design philosophy that extends far beyond its historical context of origin. The idea that open space is designed not through geometry but through reflection on spatial sequences, visual relationships, movement, and atmosphere remains a fundamental principle of landscape architecture to this day. Anyone planning a city park, a park complex, or a large-scale open space works—consciously or unconsciously—with techniques developed in 18th-century English landscape gardens.

The strength of this typology lies in its adaptability. The large landscape garden can serve simultaneously as a recreational space, a nature conservation area, a climate buffer, a cultural heritage site, and a source of urban identity. It requires its planners and caretakers to think in the long term, to understand ecological processes, and to exercise aesthetic judgment that transcends short-term trends. This combination makes it a challenging yet rewarding field of practice for landscape architecture.

The great historic gardens—from Stourhead to Wörlitz to the English Garden in Munich—are not only testaments to a bygone era of garden art, but also living laboratories where one can observe how vegetation, topography, water, and architecture have interacted over the centuries. Anyone who walks through these gardens with a knowledgeable eye learns more about open-space planning than from many textbooks. The grand landscape garden remains what it has been since its inception: a design model of extraordinary depth and durability.

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Building design

Photo: Screenshot Instagram/ecpodcast

Museums are not the only ones using podcasts to introduce themselves. Conservation science is also discovering this medium. Students at the University of Amsterdam have now launched a conservation podcast The new podcast format “ECPodcast – by and for Emerging Conservation Professionals”, which five Master’s students at the University of Amsterdam have developed in recent weeks, is just over two weeks old. The series […]

Museums are not the only ones using podcasts to introduce themselves. The restoration sciences are also discovering this medium. Students at the University of Amsterdam have now launched a restoration podcast


Studierende der Universität Amsterdam haben jetzt einen Restaurierungs-Podcast gelauncht Foto: Screenshot Instagram/ecpodcast
Students at the University of Amsterdam have now launched a restoration podcast
Photo: Screenshot Instagram/ecpodcast

The new podcast format “ECPodcast – by and for Emerging Conservation Professionals”, which five Master’s students at the University of Amsterdam have developed in recent weeks, is just over two weeks old. The series provides insights into the “Conservation & Restoration” course at the University of Amsterdam. In the first episode, Mané van Veldhuizen, Anthi Soulioti, Willemijn Bolderman, Terri Costello and Liz Hébert talk about their specializations and report on their recruitment test. They have now been at university for a year. The second episode is already online – here the students talk to Professor Ellen Hendriks, who is involved in the program’s application process: How did Covid-19 affect the selection week? Just listen in: www.ecpodcast.de