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Designing for Time

  • Writer: Sreyamsa Bairiganjan
    Sreyamsa Bairiganjan
  • Jul 17
  • 14 min read

Updated: Aug 30

Issue 02 · Cities · 55.6761° N, 12.5683° E


The shape of growth is a hand.


A minimalist locator map marking Copenhagen at 55.6761 degrees north and 12.5683 degrees east

55.6761° N, 12.5683° E. The pin falls on Copenhagen.


A city can spread across land without taking possession of the day.


Copenhagen directed growth along the lines of a hand, Melbourne divided the day into three equal parts, and Dhaka reveals the cost of leaving the journey outside both plans. Together, they show why an urban economy must account for the accessible hour as carefully as it accounts for land.


Inside Copenhagen City Hall, a mechanical clock keeps track of the heavens. Its faces show ordinary time, solar time, the movement of planets and the dates of religious holidays. One of its gears turns so slowly that a human life is too brief to notice the motion. The clock is wound once a week. Its thousands of parts include brass melted from Danish kitchen utensils gathered during the 1940s, when metal was scarce and Europe was at war.


The man who designed it, Jens Olsen, began as a locksmith. He taught himself astronomy and spent decades calculating a machine that could translate the sky into gears. He died in 1945, ten years before the clock was completed. On 15 December 1955, King Frederik IX set it moving at exactly three in the afternoon.


The clock is a monument to precision. It also happens to be a useful introduction to Copenhagen's more consequential experiment with time.


While craftsmen assembled Olsen's clock inside City Hall, planners were building another clock outside it. This one had no dial or pendulum. Its working parts were railway lines, homes, offices and long pieces of land on which the city agreed not to build. When those parts were drawn together, they looked like an open hand.


The drawing became known as the Finger Plan. Most histories describe it as a clever way to manage urban expansion. Copenhagen formed the palm, development followed five railway corridors and green wedges filled the spaces between the fingers. That account is accurate, as far as it goes. The drawing also contained a less visible promise. The city could grow without making every new resident pay for that growth with more of the day.


The Finger Plan arranged land, but its real unit of account was the citizen's hour.

A hand drawn before liberation


The hand first appeared while Denmark was still occupied by Germany. In March 1945, two months before the occupation ended, the architect Steen Eiler Rasmussen and the planner Peter Bredsdorff brought officials, architects and civic leaders together at the Danish Urban Planning Laboratory. Copenhagen had escaped the physical destruction suffered by many European capitals. Their concern was how the city would absorb the growth expected after the war.


The city had already begun to spill beyond its old boundaries. New housing appeared wherever land was available, while homes, factories and public services grew apart from one another. After the war, couples who had postponed marriage would form households, soldiers would return, construction would resume and rising incomes would enlarge the city. The planners could be reasonably certain that Copenhagen would grow, although nobody yet knew what form that growth should take.


If every municipality approved its own piece of expansion, Copenhagen could end up with houses far from jobs, industry far from workers and open land cut into fragments. No single decision would look disastrous. The disaster would emerge from thousands of reasonable decisions that had never been required to meet one another.


The Regional Planning Office published its answer in 1947. The old city sat in the palm, while new neighbourhoods and workplaces would gather along suburban railway lines stretching westward like fingers and supported by roads running along the same corridors. Between them, green wedges would reach towards the centre, keeping recreation, farms and open landscapes close to the growing suburbs. The city could expand without spreading in every direction at once.


The original black-and-white Finger Plan map showing Copenhagen's rail corridors and green wedges
The Finger Plan drawn across Copenhagen, with development following the rail corridors and open land held between them. Image and further context. The Finger Plan at 70, Danish Architecture and Design Review.

The original proposal had surprisingly little legal force. It was a sketch, not a metropolitan commandment. Yet it travelled through ministries, councils and planning offices until its basic logic became the language in which Copenhagen discussed growth. Municipal plans translated it into streets. Rail investment strengthened the fingers. Builders learned where the city was likely to welcome development and where it would resist.


Its weakness as a technical document may have helped it become a strong institution. Plans are easily lost in a cabinet, while almost everyone could remember the hand.


The hand has been stretched, revised and argued over for nearly eighty years. That is one reason it survived. It did not pretend to know every future neighbourhood. Instead, it supplied a rule for meeting the future. Build urban life near transport, keep the land between the corridors open, and let the fingers lengthen without allowing the whole region to dissolve into sprawl. The current framework reaches across 34 municipalities and a metropolitan area of more than two million people.


Its durability is usually credited to good government, public trust and a memorable diagram. It also made the benefits of coordination legible through travel time and access. Development near stations kept jobs and services within reach, while the green wedges prevented open land from retreating towards the metropolitan edge.

The welfare state outside the front door


Calling this a form of welfare may sound like too much weight for a planning diagram, yet the connection is practical. A school, clinic or park may be public in law and still impose a private cost if reaching it consumes half a day. Two homes can stand ten kilometres from the centre and belong to different economic worlds when one sits beside a frequent train and the other requires a bus, a transfer and a long walk beside traffic.


This is why the Finger Plan belongs in the history of the welfare state, even though it rarely appears there. Welfare states pooled the financial risks of illness and unemployment, and provided income security in retirement. Labour laws placed limits on the employer's claim over the working day. Urban planning performed a quieter version of the same work. It decided whether the services promised by the state could actually be reached, and whether the hours protected from work would survive the journey home.


By tying growth to rail, Copenhagen reduced the chance that expansion would automatically produce isolation. People living along the fingers remained connected to the palm, while the spaces between them stayed open because they were treated as part of the system rather than empty land awaiting a higher bid. The plan did not abolish long commutes, but it made a short walk to a station, a train that ran when a shift ended and open ground close enough for a weekday visit part of the capital's social settlement. It was, in that sense, a kind of spatial labour law.


The interior of a Copenhagen S-train in 1987
Inside a Copenhagen S-train, the city's suburban rail network, in 1987, when the second generation trains still carried commuters along the region's rail fingers. Photograph by Hunter Desportes, Wikimedia Commons, CC BY 2.0.

Copenhagen's spatial labour law rested on an older political claim that the working day did not belong wholly to the employer. That claim had acquired its clearest arithmetic 91 years earlier, on a hot April morning in Melbourne.

The three eights


On 21 April 1856, stonemasons building the law buildings at the University of Melbourne put down their tools. Their leader, James Stephens, was a British immigrant and a veteran of the Chartist movement. He had arrived in a colony transformed by gold, rapid construction and a shortage of skilled labour. The building boom gave the masons unusual bargaining power. They used it to ask for eight hours for labour, eight for recreation and eight for rest.

Stephens remembered it as a burning hot day. He called on the men to follow him, and they walked from the university works towards Parliament House. Masons from other sites joined along the route. Their eventual agreement reduced the working day from ten hours to eight without reducing the daily wage.


The victory was real, but it was not universal. The masons were skilled men in a labour market that needed them. Women, children and less organised workers continued to endure much longer days. Still, the march gave a memorable shape to an idea that employers had dismissed as impossible. A day could be divided, and paid work was entitled to only one part of it.


The eight-hour day banner associated with Melbourne's 1856 labour movement
A banner supporting an eight hour day associated with Melbourne's 1856 movement. Unknown maker, Wikimedia Commons, public domain. Sepia treatment applied for this issue.

The movement compressed its philosophy into the numbers 888, with eight hours for work, eight for recreation as a condition of citizenship rather than idleness, and eight for sleep. The digits appeared on banners and badges and, later, on a monument opposite Melbourne Trades Hall. In 1919, the newly formed International Labour Organization made working time the subject of its first convention, establishing a working day of eight hours and a working week of 48 hours as an international standard.

The agreement governed the time spent at work, but its arithmetic left out the journey to the site, the wait for a bus, the walk from the last stop and the early departure demanded by an unpredictable road. The factory clock began at the gate, although the worker had already surrendered part of the day to reaching it.

Melbourne had divided the day politically, but it left the journey outside the arithmetic. More than a century later, a Swedish geographer would put that missing journey on an economic map, in Copenhagen.

In 1969, Torsten Hägerstrand stood before the European Congress of the Regional Science Association in Copenhagen and posed a question disarmingly simple enough to become the title of his paper. “What about people in regional science?”


The discipline had become adept at describing regions through aggregates. It could map population, employment, investment and traffic, then move them through models as if a worker were a unit of labour available everywhere that demand appeared. Hägerstrand returned the body to the diagram. A person could not be in two places at once, travel without consuming time or ignore the hour at which another person expected them to arrive.


His drawings placed geography on the floor and time on a vertical axis. A life became a path rising through the day, fixed at certain points by work, school, sleep and the need to meet other people. Some limits belonged to the body and the available technology. Others came from timetables, opening hours, gates and rules. Between one fixed obligation and the next, the places a person could possibly reach formed a shape that Hägerstrand called a prism of space and time.


Imagine two workers leaving the same office at five. One is free until late evening. The other must collect a child at six. They stand at the same coordinate and inhabit different cities. A faster train enlarges both of their possible maps, but it matters more to the person whose day is held between appointments. Reliability matters for the same reason. A journey that takes thirty minutes on average but sometimes takes an hour must be treated as an hour by anyone who cannot arrive late.


The prism changed the economic question by valuing transport through the jobs, services and relationships it placed within reach between the fixed points of a life, rather than through speed alone.


Hägerstrand had come to a city already testing that proposition in concrete and rail. The Finger Plan stretched the prism along its suburban lines. Shops and services clustered around stations, bringing daily errands closer to the journey home. Green wedges kept recreation from retreating to a distant edge. Copenhagen had given a spatial answer before the question acquired its name.


Copenhagen had stretched this prism along its railway lines. In Dhaka, rapid growth would reveal what happens when the urban clock advances faster than coordination.

The city that pays in minutes


Dhaka is often introduced through the language of excess, with too many people, buses, cars and rickshaws pressing into too little road, a vivid description that turns congestion into a personality trait and hides the economic history that produced it.


Dhaka absorbed one of the fastest urban transformations of the modern era. Its population rose from roughly three million in 1980 to more than eighteen million by 2018. Government employment, services and the global garment industry pulled migrants towards the capital. Millions of workers, many of them women arriving from rural districts, became part of supply chains capable of delivering a shirt from a factory floor in Bangladesh to a shop in Europe or North America on a tightly managed timetable.


Factories and exporters could coordinate a shipment across oceans more reliably than many workers could make the much shorter journey across their own city, which remained a daily improvisation.


In 2018, the World Bank estimated that average driving speed in Dhaka had fallen from 21 kilometres an hour to less than seven. Congestion consumed 3.2 million working hours every day. The number is so large that it becomes difficult to picture, so it helps to translate it into Melbourne's language. At eight hours per working day, Dhaka was losing the equivalent of 400,000 working days each day.


The road itself distributed that charge unevenly. A World Bank assessment using 2014 travel data found that private cars carried about five per cent of metropolitan trips while occupying roughly 80 per cent of road space. Buses carried 28 per cent of trips using about five per cent of the space. Walking, cycling and rickshaws together accounted for 58 per cent of journeys, yet fewer than a quarter of roads had separated paved footpaths, many of which were broken or obstructed. Road space was therefore distributed in minutes as much as metres, with the people using the least space often surrendering the most time.


Cars, rickshaws and motorcycles caught in a traffic jam on a Dhaka street
A traffic jam in Dhaka, with cars, motorcycles and cycle rickshaws competing for limited road space. Photograph by Tanha Tamanna Syed. Source. Busy Dhaka Street Scene with Traffic Jam, used under the Pexels licence.

Dhaka's density can support excellent public transport, and its expansion reflects an economic transformation of historic scale. Yet the reliability achieved by global production was not extended to the journeys that sustained it.

A railway gives back an hour


On 29 December 2022, Bangladesh opened its first urban railway. Mass Rapid Transit Line 6, usually called MRT Line 6, began operating above one of Dhaka's most congested corridors. Within a year, it was carrying more than 300,000 passenger trips a day. For people travelling between Uttara and Motijheel, a road journey that could consume close to two hours fell to roughly 30 or 40 minutes by rail.


The map had not changed. The clock had.


Agargaon station on Dhaka MRT Line 6
Agargaon station on MRT Line 6, 25 November 2023. Photograph by Frameofashik, Wikimedia Commons, CC BY-SA 4.0. Sepia treatment applied for this issue.

The saved time appeared across thousands of ordinary decisions. Commuters could replace an improvised road journey with a predictable trip. Women gained a public transport option less exposed to the crowding and harassment widely reported on buses. Around the stations, the city began to adjust to a new current of people.


A 2025 study of the line's phased opening caught one of those adjustments at street level. It found a shift from private vehicles to the metro, but it also noticed cycle rickshaw drivers changing how they worked. Instead of circulating in search of passengers, they began lining up near stations as demand gathered there. The finding is modest but revealing because a railway does not end the last mile. It gives rickshaws and other feeder services a place and a time around which to organise.


Researchers later detected another effect on the roads below. A 2025 study using journey data sampled frequently from Google Maps found that Line 6 initially increased vehicle speeds along its corridor by about 10 to 15 per cent as services expanded. Then some of the improvement faded. Faster roads attracted more vehicles until the spare capacity began to fill.


Transport economists call this induced demand. In plain language, a road that becomes easier to use invites more use. The finding explains why cities rarely escape congestion by adding road capacity alone.


The returning traffic does not reduce the value of the metro, but it exposes the limit of treating a railway as a cure on its own. A train can move people quickly between stations without deciding where homes and jobs will be built, whether a pavement reaches the entrance, whether a bus meets the train or whether rising land values push its most dependent riders farther away.


Seen only on maps, a metro line is transport infrastructure, while the Finger Plan joined transport to decisions about where homes, work and open land would be allowed to gather.


That distinction matters because successful infrastructure changes the value of the city around it. Land near a station with fast connections becomes more expensive because more of life can be reached from it. Without coordinated planning, offices can arrive without housing, rents can displace riders with lower pay and feeder streets can fill with vehicles until the time saved on the train is spent reaching the platform.


Copenhagen had the advantage of acting before expansion after the war hardened into property lines and habits. Dhaka must fit coordination into a metropolis already full of homes, claims and livelihoods, making the task much harder. The principle can still travel even when the shape cannot. Every growing city needs an agreement about what should be reachable, what should remain open and who should benefit when infrastructure creates valuable time.

The accessible hour


Hägerstrand's prism gives accessibility a geometry. Cities also need a unit they can count. Call it the accessible hour. It is the number and variety of jobs, schools, clinics, markets, parks and relationships a person can reliably reach within sixty minutes.


Economists use the word agglomeration for the advantages created when people and firms gather. Workers find jobs that better match their skills, businesses find suppliers and ideas move between people. Yet agglomeration is not a headcount. Twenty million people separated by uncertain journeys do not form the same labour market as twenty million people connected by dependable time.


The measure would have to begin where people actually stand and with the obligations that hold them there, not from an abstract city centre. It would differ by income, gender, age, disability and the hour of the day. Money can buy a home near employment, a private vehicle, childcare, delivery services or the freedom to work remotely. Households with lower incomes often buy affordable housing with distance, then pay the difference in travel and waiting.


Copenhagen’s green wedges acquire economic importance here because they allow recreation to begin near home, while building near stations enlarges the number of opportunities available to households without cars. Even the decision to preserve open land carries value by preventing it from retreating to the far edge of the region as the city advances.


Congestion acts like a regressive tax collected in minutes, without a treasury or public account to show who paid. The same hour is equal on every clock and unequal on every street.


Three hands now meet in this story. One measures time as if it were universal, another makes that time economically valuable, and Copenhagen’s drawn hand arranges growth so that some of the value remains with the person who produced it.


None is enough alone. A labour standard without accessible geography can be hollowed out by the commute. A rapid railway without coordinated land use can create islands of saved time surrounded by delay. A green city that pushes ordinary workers beyond its boundary may protect nature while exporting the journey.


Inside Copenhagen City Hall, Jens Olsen's clock will continue calculating the heavens long after everyone who saw its first movement is gone, provided someone remembers to wind it each week. Outside, keeping the other clock in order requires repeated political decisions about green wedges, transport and housing, because development that raises land values can also lengthen the journeys of those displaced by it.


The twentieth century taught employers that they could not own the whole working day. It did not teach cities the same restraint. Copenhagen's enduring contribution was to draw that restraint as a hand, open enough to accept growth and firm enough to hold back the clock.


Sources and further reading



Cover image. Jens Olsen's World Clock at Copenhagen City Hall. Photograph by Leif Jørgensen, 2022, [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Jens_Olsens_Verdensur_01.jpg), CC BY-SA 4.0. Sepia treatment applied for this issue.

 
 
 

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