I am a PhD in Urban planning. The vision of my work is facilitating the smart city. I am interested in understanding the mechanism of spatial effects that happen during time by applying ICTs in urban subsystems. By ICTs, I mean services and devices which function based on information and communication technologies. Spatial effects also refer to the changes in the activity-travel behavior, parking lots, land uses, urban sprawl, logistics sprawl, housing location choices, population density, building density, core-peripheral distribution pattern, traffic flows and land per capita.
I think now we are at the beginning of the fourth industrial revolution. Does it make
effects similar to effects which we observed after the third industrial revolution (urban sprawl, land use change, networks of highways and mass of pollution by private cars)? I believe that the synergy between robotics, nanotechnologies and the new generation of ICTs (e.g., Autonomous vehicles, navigation apps, digital
twins, internet of things and augmented reality) has the potential to make primary and secondary effects which change the current patterns and conceptions of urban planners and urban policymakers about cities.
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4. The automation of driving: two views (4/4)

At this time, every car manufacturer plus hundreds of startups are working on developing artificial intelligence for driving automation. This should enable communication with the car’s passengers, sensing and anticipating the behavior of other vehicles and road users, communicating with the cloud and planning a safe and fast journey. I will write later about the investments made to achieve this goal.
The development of car automation became visible when Google was the first to start a project in 2009. The activities that technology companies and the automotive industry carry out start from two different visions of the desired result.
Maintain the existing traffic system
The first view assumes that automation is a gradual process that will result in drivers ability to transfer control of the vehicle in a safe manner. It is provisionally assumed that a driver will always be present. That is why taking over control is no problem under specific conditions, such as bad weather and crowded streets. Tesla, an outspoken supporter of this vision, has therefore been talking about its autopilot for years. This came under heavy criticism because the number of functions that were automated was limited. Partly because of this, the so-called autopilot could only be used on a limited number of roads and under favorable conditions.
Most established automotive manufacturers primarily have in mind the higher segment of automobiles and announce they will only make relatively cheaper models suitable for this purpose at a later stage. Maintaining the current traffic system is paramount. The car industry wants to avoid at all costs that people will eventually stop buying cars and limit themselves to ride-hailing in autonomous vehicles.
Moving towards another traffic system
The latter is exactly the intention of the companies that adhere to the second vision. These primarily include non-traditional automotive companies, with Google (later Alphabet) in the lead. What they had in mind from the start was to achieve SAE level 4 and, in the long term, SAE 5 level, cars that can drive safely on the road without the presence of a driver. Companies belonging to this group advocate a completely new transport system. In their opinion, safe driving at SAE level 3 is impossible if the driver is not constantly paying attention. They believe that in the event of a 'disengagement signal', taking control of the car takes too much time and will result in dangerous situations. In addition to Google, Uber (in collaboration with Volvo) also belonged to this group, but now appears to have dropped out. This also applies to Ford and Volkswagen. General Motors is betting on two horses and aims to maintain accreditation at SAE level 4 with its subsidiary Cruise, although Alphabet's subsidiary Waymo has by far the best cards.
Important message for the readers
From next year on, the frequency of my articles about the quality of our living environment will decrease. I admit to an old love: Music. In my new website (in Dutch) I write about why we love music, richly provided with examples. Maybe you will like it. Follow the link below to have a look.
Why we should stop talking about self-driving cars (3/8)

The term 'self-driving car' is used for a wide variety of technical support systems for car drivers. The Society of Automotive Engineers (SAE) has distinguished six types, as mentioned in the tabel above. This classification is recognized worldwide.
At SAE level 0, a car has been equipped with various warning systems, such as unvoluntary deviation from lane, traffic in the blind spot, and emergency braking.
At SEA levels 1 and 2, cars can steer independently or/and adjust their speed in specific conditions on motorways. Whether drivers are allowed to take their hands from the steering wheel depends on national law. That is certainly not the case in Europe. As soon as environmental conditions make steering and acceleration more complex, for example after turning onto a busy street, the driver must immediately take over the steering.
A properly functioning SAE Level 3 system allows drivers to take their eyes off the road and focus on other activities. They must sit behind the wheel and be on standby and are always held responsible for driving the car. They must immediately take over control of the car as soon as 'the system' gives a ('disengagement') signal, which means that it can no longer handle the situation. There is currently no car worldwide that is accredited at SEA-3 level.
This level of control is not sufficient for driverless taxi services. Automotive and technology companies such as General Moters and Alphabet have been working hard to meet the requirements of the higher levels (SAE 4). Their expensive cars (up to $250,000) have automated backups, meaning they can handle any situation under specified conditions, such as well-designed roads, during the day and at a certain speed. Under these circumstances, no driver is required to be present.
SAE Level 5 automation can operate without a driver in all conditions. There is currently no vehicle that meets this requirement.
The variety of options in this classification explains why the term 'self-driving car' should not be used. Cars classified at SAE level 1 and 2 can best be called 'automated cars' and cars from SAE level 3 onwards can be called autonomous cars.
The state of California introduced new rules in 2019 that allow cars at SAE 4 level to participate in traffic. Very strict conditions apply to this. As a result, Alphabet (Waymo) and General Motors (Cruise) have been allowed to launch driverless taxi services. All rides are monitored with cameras to prevent reckless behavior or vandalism.
<strong>Last week, you might have read the last in a series of 25 posts about improving environmental quality. Right now, I have finalized an e-book containing all posts plus additional recommendations. If you follow the link below, you can download the book (90 pages) for free. A version in Dutch language can be downloaded HERE**</strong>
My personal highlights and learnings from the World Smart City Expo 2023

At the start of November, I was lucky enough to visit Barcelona for the World Smart City Expo 2023. Together with my Amsterdam Smart City colleagues and a group of our network partners, I organized -and took part in- keynotes, panel discussions, workshops and visits to international pavilions. As this was my second time visiting the Expo with our network, I was able to keep my focus on the content amidst the overwhelming congress hall and side activities. The following text describes some of my best insights and discoveries.
Informal Transport: Challenges and Opportunities
My mobility colleague Chris de Veer took part in a panel discussion on public transport and mobility options in urban environments. Following a plea on the implementation of micro subsidies (increasing equity and efficiency of subsidies), Chris explained the Dutch efforts to get people out of theirs cars and onto bikes and public transport, and making shared mobility solutions accessible for everyone. An important story but something I’ve been working on and getting really familiar with the past year. However, when Maria Nieto, a DU60th PhD Scholar, entered the conversation the discussion took an unexpected turn.
Maria introduced the topic of Popular, or Informal, Transport. For some years, she had been studying this topic of individuals and small scale entrepreneurs organizing ‘unregulated’ transport services. While many would say that this is ‘just chaos on the streets’ (think of the Rickshaws in New Delhi, or the moped taxi’s in Asian countries), she argued how it’s actually quite an efficient and demand responsive service. With the help of public authorities, this source of livelihood for many could be implemented in urban mobility systems. And if electric vehicle alterations would be relatively cheaper, these entrepreneurs would be happy to help make this large fleet more sustainable overnight. Furthermore, they could help please our obsession for data on travel behaviour. These drivers know exactly where people are traveling to- and from!
But where to start? Randolf Wilson, head of the Department of Transport at Kumasi Metropolitan Assembly (Ghana) and Ajoy Sharma, Principal Secretary at the Government of Punjab (India) shared stories from their own districts and how they’re trying to improve this sector. They explained how the main challenges revolve around unsafe working (& traffic) conditions and unregulated pricing mechanisms. In order to get a grip on these problems they are currently doing their best to map this sector. Unions play a key role in getting as many entrepreneurs registered as possible. Through these unions, governments are able to (micro)subsidize this growing sector, collaborate with the drivers, and ‘tidy up the chaos’.
This panel made me realize how every country and region is dealing with their own mobility challenges, and how extremely organized our own mobility system is.
Pikala Bikes in Marrakech
During the congress, I had the pleasure of meeting Cantal Bakker, founder of Pikala Bikes. With Pikala Bikes, she is introducing the city of Marrakech to cycling culture and the benefits it brings to people, their health and the city as a whole. Unknowingly, I had actually visited her repair café in March, when I travelled though Morocco.
With the help of financial income from bike tours, bike rentals, repairs and the café, Cantal is training and employing Moroccan youth in the cycling and tourism sector. At the same time, the growing presence of bikes in the urban environment inspires citizens to consider biking as a means of transport instead of the popular mopeds.
However, because the local government is still hesitant in giving cyclists more space in their infrastructure plans, she’s now putting extra effort in convincing local authorities of all the benefits a growing cycling culture could bring to the city. As this is one of the Netherlands’ great export products, we look forward to help her in connecting with Dutch ambassadors and high profile names within the Dutch cycling sector and add some persuasive power to the table!
Affordable and sustainable housing
During the final day of the Expo, I decided to join a talk on the challenges and opportunities regarding affordable and sustainable housing. While I’m not professionally involved in this sector, I do have great personal interest in this global challenge.
The panel consisted of a combination of architects, researchers and city officials. I was especially impressed by John Roberson, Chief Operating Officer for the City of Chicago. His way of talking and the Chicago projects he described were inspiring. I decided to hang on for a while afterwards to speak to him.
We had a conversation about one of the aspects of our current housing crisis that intrigues me; apart from the need for more physical buildings for housing, there also needs to be more ‘flow’ in our current housing market. There are too much house owners and tenants living in a house that’s not ‘suited’ for their current stage and situation in life. Think of; elderly who are living alone in a spacious multiple bedroom house, and a starting family cramped up in a studio. He explained to me how culture and pride make this a difficult matter; people consider their (family)homes their biggest pride and property in life. Furthermore, the longer people live and settle in a place, the harder it gets to move and build up a life and social network in a different place. To overcome this lack of flow in the housing market (e.g. elderly occupying big family homes), we shouldn’t focus on measures to get people out of their houses, but we should make housing options for elderly as attractive as possible and distributed throughout the country. Moving away from family and the social circle you’ve build up throughout life, is one of the biggest reasons not to move!
A big thank you to all people involved in making this International trip happen, and I’m excited to follow up with all the new people and organizations I’ve met! See you next year Barcelona!