ClairCity: Citizen-led air pollution reduction in cities

Urbanisation in the US is undergoing major changes. The image of a central city surrounded by sprawling suburbs therefore needs to be updated. The question is what place does the 15-minute city have in it? That is what this somewhat longer post is about
 
From the 1950s, residents of US cities began moving en masse to the suburbs. A detached house in the green came within reach for the middle and upper classes, and the car made it possible to commute daily to factories and offices. These were initially still located in and around the cities. The government stimulated this development by investing billions in the road network.
From the 1980s, offices also started to move away from the big cities. They moved to attractive locations, often near motorway junctions. Sometimes large shopping and entertainment centres also settled there, and flats were built on a small scale for supporting staff. Garreau called such cities 'edge cities'.
Investors built new suburbs called 'urban villages' in the vicinity of the new office locations, significantly reducing the distance to the offices. This did not reduce congestion on congested highways.
 
However, more and more younger workers had no desire to live in suburbs. The progressive board of Arlington, near Washington DC, took the decision in the 1980s to develop a total of seven walkable, inclusive, attractive and densely built-up cores in circles of up to 800 metres around metro stations. In each was a wide range of employment, flats, shops and other amenities . In the process, the Rosslyn-Balston Corridor emerged and experienced rapid growth. The population of the seven cores now stands at 71,000 out of a total of 136,000 jobs. 36% of all residents use the metro or bus for commuting, which is unprecedentedly high for the US. The Rosslyn-Balston Corridor is a model for many other medium-sized cities in the US, such as New Rochelle near new York.
 
Moreover, to meet the desire to live within walking distance of all daily amenities, there is a strong movement to also regenerate the suburbs themselves. This is done by building new centres in the suburbs and densifying part of the suburbs.
The new centres have a wide range of flats, shopping facilities, restaurants and entertainment centres.  Dublin Bridge Park, 30 minutes from Columbus (Ohio) is one of many examples.
It is a walkable residential and commercial area and an easily accessible centre for residents from the surrounding suburbs. It is located on the site of a former mall.
 
Densification of the suburbs is necessary because of the high demand for (affordable) housing, but also to create sufficient support for the new centres.
Space is plentiful. In the suburbs, there are thousands of (semi-)detached houses that are too large for the mostly older couples who occupy them. An obvious solution is to split the houses, make them energy-positive and turn them into two or three starter homes. There are many examples how this can be done in a way that does not affect the identity of the suburbs (image).
New construction in suburbs
 
This kind of solution is difficult to realise because the municipal authorities concerned are bound by decades-old zoning plans, which prescribe in detail what can be built somewhere. Some of the residents fiercely oppose changing the laws. Especially in California, the NIMBYs (not in my backyard) and the YIMBYs (yes in my backyard) have a stranglehold on each other and housing construction is completely stalled.
 
But even without changing zoning laws, there are incremental changes.  Here and there, for instance, garages, usually intended for two or three cars, are being converted into 'assessor flats' for grandma and grandpa or for children who cannot buy a house of their own.  But garden houses are also being added and souterrains constructed. Along the path of gradualness, this adds thousands of housing units, without causing much fuss.
 
It is also worth noting that small, sometimes sleepy towns seem to be at the beginning of a period of boom.  They are particularly popular with millennials. These towns are eminently 'walkable' , the houses are not expensive and there is a wide range of amenities. The distance to the city is long, but you can work well from home and that is increasingly the pattern. The pandemic and the homeworking it has initiated has greatly increased the popularity of this kind of residential location.
 
All in all, urbanisation in the US can be typified by the creation of giant metropolitan areas, across old municipal boundaries. These areas are a conglomeration of new cities, rivalling the old mostly shrinking and poverty-stricken cities in terms of amenities, and where much of employment is in offices and laboratories. In between are the suburbs, with a growing variety of housing. The aim is to create higher densities around railway stations. Besides the older suburbs, 'urban villages' have emerged in attractive locations. More and more suburbs are getting their own walkable centres, with a wide range of flats and facilities. Green space has been severely restricted by these developments.
 
According to Christopher Leinberger, professor of real estate and urban analysis at George Washington University, there is no doubt that in the US, walkable, attractive cores with a mixed population and a varied housing supply following the example of the Rosslyn-Ballston corridor are the future. In addition, walkable car-free neighbourhoods, with attractive housing and ample amenities are in high demand in the US. Some of the 'urban villages' are developing as such.  The objection is that these are 'walkable islands', rising in an environment that is anything but walkable. So residents always have one or two cars in the car park for when they leave the neighbourhood, as good metro or train connections are scarce. Nor are these kinds of neighbourhoods paragons of a mixed population; rents tend to be well above the already unaffordable average.
 
The answer of the question in the header therefore is: locally and slowly

Due to a long stay in the hospital, I was unable to post my columns. I also cannot guarantee their continuity in the near future, but I will do my best... 

In my previous post, I emphasised that urban densification should be coordinated with other claims on space. These are: expanding blue-green infrastructure and the desire to combine living and working. I am also thinking of urban horticulture. It is therefore unlikely that all the necessary housing in the Netherlands - mentioned is a number of one million housing units - can be realised in the existing built-up area. Expansion into rural areas is then inevitable and makes it possible to improve the quality of these rural areas. Densification of the many villages and small towns in our country enable to approach them from the '15-minute principle' as well. Villages should thereby become large enough to support at least a small supermarket, primary school and health centre, but also to accommodate small businesses. A fast and frequent public transport-connection to a city, to other villages and to a railway station in the vicinity is important.
 
A thorny issue is the quality of nature in the rural area. Unfortunately, it is in bad shape. A considerable part of the rural area consists of grass plots with large-scale agro-industrial use and arable land on which cattle feed is grown. Half of the Netherlands is for cows, which, incidentally, are mostly in stalls. Restoring nature in the area that is predominantly characterised by large-scale livestock farming, is an essential task for the coming decades.
 
The development of sufficiently dense built-up areas both in cities and villages and the development of new nature around and within those cities and villages is a beckoning prospect. This can be done by applying the idea of 'scheggen' in and around medium-sized and large cities. These are green zones that penetrate deep into the urban area. New residential and work locations can then join the already built-up area, preferably along existing railway lines and (fast) bus connections. These neighbourhoods can be built in their entirety with movement on foot and by bicycle as a starting point. The centre is a small densely built-up central part, where the desired amenities can be found.
 
In terms of nature development, depending on the possibilities of the soil, I am thinking of the development of forest and heath areas and lush grasslands, combined with extensive livestock farming, small-scale cultivation of agricultural and horticultural products for the benefit of nearby city, water features with a sponge function with partly recreational use, and a network of footpaths and cycle paths. Picture above: nature development and stream restoration (Photo: Bob Luijks) 

Below you can link to my free downloadable e-book: 25 Building blocks to create better streets, neighborhoods and cities

On Thursday December 14th, Amsterdam Smart City partners concluded 2023 with an afternoon full of inspiration, exchange and connections at our 22nd Demoday! Our partner Deloitte welcomed our network in The Garage, where their ‘Deloitte Studios’ department is located. In this article, we’ll give you a quick overview of the Knowledge Session, Work Sessions and Pitches. Interesting in learning more? Read the full reports by our Programme Managers Noor, Pelle and Sophie (linked below).

About our Demodays

The Demodays are one of the tools we use to stimulate innovation and encourage connection between our partners and community. The purpose of the Demodays is to present the progress of various innovation projects, ask for help, share dilemmas and involve more partners to take these projects to the next level. More information about the Demodays can be found here.

Knowledge Session: Change in the here and now, with Theory U

To kick-off our final Demoday of 2023, our brand-new partner Hieroo led an inspiring knowledge session about the change method they use for social innovation in the city: Theory U. Dorien Schneider and Maartje Krijnen taught us more about this methodology and how it can help us solve complex problems by shifting from ego to eco-thinking. Read the full report here.

Work sessions

After the plenary Knowledge Session we split up in different worksessions, each exploring regional innovation challenges. As always, we had set up the sessions’ topics and moderation in collaboration with our partners.

Mobility | Decision-making along the principles of Inclusive Prosperity – Jurhan Kwee (Municipality of Amsterdam)
In The Netherlands, the concept of ‘Inclusive Prosperity’ is on the rise. Policy makers are busy defining this concept, figuring out how to put this concept into practice and what it means for their decision-making process. Together with his colleagues at the Municipality of Amsterdam, Yurhan Kwee hosts sessions on decision-making along the principles of Inclusive Prosperity. With the input he gathers, he hopes to make the decisions needed for our Inclusive Prosperity ambitions more understandable and transparent, both for Amsterdam’s administrators and councillors as well as its citizens. Read Pelle’s recap article here.

Digital | Data Commons Collective: Using data for a liveable city – Lia Hsu (Amsterdam Economic Board) and Simone van der Burg (Waag)
In the big tech-dominated era, data has been commercially exploited for so long that it is now hard to imagine that data sharing might also benefit the community. Yet that is what a collective of businesses, governments, social institutions and residents in Amsterdam aim to do. Sharing more data to better care for the city. On behalf of the Data Commons Collective, Lia Hsu (Strategic Advisor at Amsterdam Economic Board) asked the Amsterdam Smart City network for input and feedback on their Data Commons initiative. Read Sophie's recap article here.

Energy | How can we continue to facilitate the homeowner in driving the energy transition? | Wouter van Rooijen (Alliander)
Wouter van Rooijen (Alliander) discussed the challenges related to grid congestion. From 2030 onwards, it is expected that a significant portion of the low-voltage network will experience both over- and under-voltage. While the network will be reinforced as quickly as possible, the lack of labour capacity is also prompting the consideration of alternative solutions.

The solution that emerged from Wouter's co-creation process was WijkWise. In this work session, Wouter aimed to validate the WijkWise concept and find parties that could contribute to its development and market implementation. Dave van Loon from Kennisland moderated the session. Read Noor’s recap article here.

Circular | Navigating eco-emotions: The impact of working in sustainability on your mental wellbeing| Marian Zandbergen (Hogeschool van Amsterdam)
This work session, led by Marian Zandbergen (CIRCOLLAB, HvA) and moderated by Mareille de Bloois (Royal HaskoningDHV), explored the challenges and opportunities associated with eco-emotions, both personally and within organizations. The key question addressed was: How can individuals and organisations constructively manage eco-emotions, and what implications does this have for organisations? Read Noor’s recap article here.

Pitches

To end this festive afternoon and the year 2023 as a whole, we invited project owners and -members to present their progress and next steps on topics brought in during our events and deep-dives throughout 2023. The following projects were presented. You can read more about these topics on their dedicated articles and project pages, linked below.

Local Energy Systems: Where we started, what we have achieved, and what are the next steps – Omar Shafqat (University of Applied Sciences Amsterdam)

Connecting the resource- and energy transition – Edwin Oskam (MRA)

ChatGPT and the government: Possibilities and impact on our work – Jeroen Silvis (Province of North Holland)

Floating urban districts: Future-proof living in the Metropolitan Region – Joke Dufourmont (AMS Institute)

Mobility Justice: Raising the topic of Mobility Poverty and the working group’s progress – Bas Gerbrandy (Province of North Holland)

Our next Demoday will take place in April. Do you have an inspiring story or project you want to pitch to the Amsterdam Smart City network? Let us know via sophie@amsterdamsmartcity.com