a privilege hardy is one of the main causes some young children work in mind, troughs. instead of going to class others can attend classes only after they finish working. really hands of children over the world can't go to school. we ask why? because education makes the world more just make up your own mind. d. w. made for mines. ah ah ah, if you live in the countryside, you are surely familiar with the smell of fresh air. the sight of

a clear blue sky and the feel of wide open space. it's simply gorgeous. and it may make you wonder why anyone would choose to move to a city. but the fact is, 3 quarters of the world's population now live in towns and cities. that is over 5000000000 people and as these areas grows, so do the problems from traffic congestion to storing energy demands. what we need are urban visions. our topic today are made. welcome. now did you know that one in 8 people not only live in a city, but in a mega city, sharing limited space with millions of other inhabitants? and now imagine those millions on their way to work. not sure if the term rush hour still applies. in order to ensure people can actually move from one part of a city to another, new mobility concepts and need it. and sooner rather than later mushrooming

mega cities are a global phenomenon. there are now 3 times as many urban areas with $10000000.00 plus residents as just a few decades ago. but as cities grow, so do bad problems, stretches inched cities or microcosms of society. and we can observe all the opportunities and challenges in a very small space, sort of like under a looking glass of you want and the brand glass. the income, the biggest conservation on the planet is greater tokyo population. 38000000 followed by jakarta with around 34000000 delhi mon by manila, and shanghai are each home to more than 20000000 people. as are the biggest metropolis is in latin america. so paulo and mexico city traffic is a major problem in mega cities. but they're a new ideas out there on how to tackle it. is loud. mm hm. we're also used to cars

that we can't imagine cities without them any more. but if we were to experience that, we wouldn't want to go back to cars method, an artists to look for him. this is how cities might look in future if different kinds of road uses were separated. one road is for fast moving electric vehicles. another for pedestrian, cyclist and scooters. with the 3rd a promenade reserved for pedestrians only. welcome to woven city a project under development by japanese comic a toyota, a prototype city, and living laboratory for cutting edge technologies. here all vehicles will be self driving and run on electric power or hydrogen. the mini city itself will be powered by solar and geothermal energy, with everything coordinated centrally. by a i, technology. it's been designed for a relation of 2000 people who close like when it smarter ideas about how people can

move around, then be enough in a city with 5000000 residents and 3000000 cars that are idle, 90 percent of the time. you just need to do the math of gobber and so we could probably reduce the number of cars by 80 percent and young wouldn't been good with a smart sharing system. people could still enjoy the same level of mobility and send a mention of i. meanwhile, at the other end of asia in saudi arabia, there are plans for a new megalopolis, ne um, a linear city comprising for urban hubs. the pet project of the saudi crown prince is set to cost an estimated 500000000000 euros road and high speed rail. transportation are all electric and underground. neon, nicknamed the line because it's meant to be 170 kilometers in length. is designed to be carbon neutral with a 5 g network driving all manner of applications. and it's yet

the right now, it's a thinly populated and undeveloped area. here we want to create sustainable infrastructures and stimulate economic activity on the right, which will in turn create new kinds of jobs and economic development in saudi arabia. ready the country is seeking alternatives to its oil based economy. neon should also boost tourism and attract start up st. media production companies . the entire cities energy requirements are to be supplied from renewable sources. here we have a huge amount of sunlight and ideal wind conditions. so our energy system will run exclusively on primary energy on this energy will then also be used for desalination is energy, but back us water is a big problem here. i says, yeah, i was been meal is an acronym for a new future. the plan is to create

a city for 1000000 people in just 10 years. but is that really feasible? is rather than just remind them if the 2 projects have something in common, one is that they're not what was originally hoped for. blueprints and reality of miles, a part of the project assume a managerial perspective, which ignores the fact that cities are more than just infrastructure. what draws people to living there is not something you can plan just like that on the plan because woven city and me on to visions of eco friendly, high tech cities where people can actually enjoy life. but will they actually get off the ground? well, all i know is that compared to cities like tokyo or mexico city, berlin is a village and it does have lots of parks and green spaces like tree light, boulevards. but the streets are getting busier. traffic is getting worse. it's not

just cars, delivery vans and buses, and of course more and more people are riding bicycles and as often not enough room for everyone thinks must change. and that's why city planners are joining forces with start up to come up with new and sustainable concepts. who owns the city? streets of berlin are increasingly busy with calls cyclists, but austrians. all the seekers gets around by bike newton. i not so bit on newton loudon graham and i don't want to live in a noisy, polluted concrete jungle with i. i want to live in a city where people, chad on the pavement in common, don't have to shout at one another over the roar of porches whizzing past to puerto . kn beautiful by it. ah, the platform fix,

my berlin was set up a year ago for the city cycling community. it allows uses to see, for example, where there's a new cycle past, or where a new one is planned. it already has over 1500 uses. the idea is to put pressure on up and planning authorities. if i don't climbed hard to mash gonna save, you authorities are planning a new bicycle boulevard when we're new bike racks on the public and say whether they approved the plans in northern michigan. okay, so you can see what's possible, what the public sees as a priority and what it sees as less urgent hyphen botany, where there's less demand that have been gathered off auto. felons population increases by about $20000.00 a year. according to forecasts, the city will be home to some 4000000 people by 2030. how can traffic be reduced? how can traffic flow be diabetic, to reduce congestion and pollution?

these, the questions that a group of scientists are seeking to answer with the help of data collected by traffic commerce going on with my own building as biospine. let's take a busy berlin street as an example at a street you'd think would be quite dangerous. a cyclists really detect tolkien, but besides, if you're ha, we'd look at their trajectories, invoices, see if they often need to overtake trucks and buses. say a and see if that could be quite high risk of symptoms competency i ah, the findings could be used by urban planners to redesign busy crossroads. for example, traffic patterns are constantly in flux. recent months have seen a 25 percent rise in cyclists on poland streets. when the pandemic hit, the city created a number of pop up cycle paths. but the fix, my berlin team says there's still a lot of work to be done. and i to announce,

didn't british merriman in non stackable compared to other cities of the mayor and the student government and aren't very invested in cycling policy medical em than at one in paris and london. it's a political priority, long, etc. water, that's our character chefs, healthcare cloud. perhaps not yet, but the vision reason, city lab, working hard to get berlin up to speed. yet green smart with pop up a bicycle pass. it's going in the right direction. but the future of mobility will still include cars, and while many consider e cars or electric cars, a sustainable alternative to gasoline and diesel power transportation. it's not that straightforward. is a look at some of the issues. electric cars, like me, are still quite a rare sight. there's only $17000000.00 of us worldwide. that's just

a tiny fraction of the estimated $1400000000.00 cars in total. but our numbers are growing. e cars use raw materials, mind in south america, the democratic republic of congo and china. these include lithium, cobalt and rare earths needed in our batteries. admittedly extracting and transporting these materials is an environmental nightmare, often carried out under in humane conditions. but their reserves are abundant. studies show that world wide deposits of these materials could meet demand for years to come. one good thing about us e cars is that we don't emit greenhouse gases, although manufacturing us certainly does. all my components still have to be produced, but my power train only has $200.00 parts, as opposed to a combustion engines. 1400, where my electricity comes from is another huge issue, renewable sources or fossil fuels. the good news is that the share of green energy

is growing, which definitely plays in my favor. as battery technology improves, the range of e cars is increasing. right now, it's rarely more than 500 kilometers and often weigh less. finding a tracking station can also be an issue as to our batteries. 95 percent of them could be recycled in an environmentally friendly way, but it's still not economically viable. but i recommend you sit back and relax it. surely only a matter of time to day electric cars cost more than conventional models. but that gap is closing the day of climate friendly, affordable electric cars, maybe about to dawn. so whether electric gas or diesel far too often cars and ob, stuck in traffic jams. but why?

because, well, there are simply too many cars on the roads, but we can look to mother nature to find a perfect example of how to keep traffic running smoothly. and i'm talking about aunts now when it comes to regulating traffic, they seem to have it figured out. there are no jumps on their motor ways. bad traffic, bad vibes, and highways are also super busy, but clearly run a lot more smoothly. in the human world, congestion on the roads is a normal part of life. we even keep track of record breaking jams. when hurricane rita hit the southern united states in september 2005, 2 and a half 1000000 people fled houston or tried to the resulting tailback on interstate

45. heading inland towards dallas, reached a length of 160 kilometers for 48 hours in the run up to the 2014 world cup and brazil, the roads in and around sal. paolo were gridlocked, 340 kilometers of stationary traffic, almost equivalent to the distance from sao paulo to rio. moscow, november 2012. the notorious russian winter paralyzed much of the biggest country on the planet. for 3 days and 3 nights, snowstorms blocked the highway between saint petersburg and the capital. but how do traffic jams actually come about it? the main reason is that you do not have enough capacity. um, of course there are other reasons i'm but these reasons, reasons are not that they do not happen that often. um, dumb people sometimes make driving mistakes. of course, for instance,

they do not pay enough attention. then they have to break heart great heavy weather conditions. but most of them think the percent reach you to look at the same time in the same news in the same direction. but the world runs differently when i met with the principal is one for all and all for one not hardly applies to motorists on the road. everyone's thinking, what's the quickest way of getting to my destination? individuals focus on themselves and don't care about the others. drivers have a lot to learn from, and i know on the, on the roads

and that is a thing which hinder, to be effective. so that we have different good maxima. that is, if you use the optimum and a system of dim and normally the user will look for the planes so and cooperate and have a common goal. humans on the road, do 2 in a way they each want to get from a to b. but the lack of cooperation results in countless people wasting vast amounts of time in traffic jams. how much time precisely, telemetry experts have the figures take. for example,

germany's biggest city think palm has made this kind of um, statistic. then they, they have a number to face. how much more time have you invest in on your daily commute and from pearl in this number, it's about 30 percent in other cities, it's much, much worse. 3rd spot goes to bogota. residents of the colombian capital spend an average of 230 hours a year going nowhere fast. that's almost 10 full days. the frustration can sometimes boil over ah, number 2, bengal in 2019 drivers in the indian mega city spent an average of 243 hours stuck in traffic. but when it comes to world beating congestion look no further than manila researchers worked out that in

2019 rude users in the capital of the philippines. last 257 hours of their lives to the daily commute to many self absorbed drivers with big egos crammed into narrow spaces. anti waste by contrast are always busy, but never congested. how did they manage that? ahmed coming answer communicate via since they have plans to produce them. various pheromones convey information such as danger, food, all this way. he has put dog figured slang for dec community. they want to have the system optimum that went through. i am working on a flow which is not stopped by individuals so we can run from the and i don't think that's going to teach the people to be like, oh, aunts depend on a communal effort and adapt as conditions change. humans communicate not so much

with each other as against each other, and while costing us precious time that comes at a financial cost as well. the individual, it's speedo didn't thank you. so we have the highway and you say you have a 4 kilometer jen to 9 for 3 hours. then you can drive only 10 instead of 80. then you can calculate what is the last time on the drive, and to end up being 510-0000 euro lunch. and i calculated germany, for example, you come up with, say 60 to 100000000 euro to year. average, 80000000000 euro. we lose chef by standing still and jeff, so you don't only lose time. ah,

so what can we learn from our individuals' medicaids, you can copy it behavior. and this is the hope that's then at the end, we will have a working traffic system which has a much larger capacity. as we have today, insights from mounts might soon be translated into better traffic routing and better attitudes. it's ultimately up to us. we need less ego and more consideration for others. it's better to cruise at a moderate speed, for example, than speed and slam on the breaks. perhaps then we'll be able to see our selves a lot more time and money and avoid seems like it. and how do we get more nature into a city parks help without

a doubt. but what about those places? we actually spend most of our time in buildings, from offices to homes, shouldn't they? to be more equal, friendly and healthy? now our ancestors lived in wouldn't hats. perhaps it's time for this material to experience a renee sense. oh hi, new does we put with doing it for reasons could use that i have nothing to do with the story. the story is about construction sites, concrete buildings, and the hopes and dreams of people living in concrete buildings. ah, maybe it's forest full of deer lay. dreema said there is a connection. after all that might explain why would is a fashionable construction material. it's those almost 20 percent of new builds in germany are made of wood either they're in the north. well,

we're just about anybody who enters a home made of wood is almost always overwhelmed by its quality and atmosphere level. when seen it going to a newly built wooden house, you'll feel wonderful from the very 1st moment. thanks to the structural design and the very special atmosphere or one atmosphere. thomas vaskins company is developing what is said to be the tallest wooden apartment building in germany. 29 stories 98 meters high. it's called, well whoa. and is to go up in berlin is going to lean out the cities decided that entire district should be built of wood with new school buildings made of timber. and there is some justification for that. we have to aims, we climate neutral in our cities, trees of bound c o 2 for centuries. and when the timber is used for building it remains bound. this is that's the key difference between wood and concrete slabs

off. baton concrete is getting a lot of bad press nowadays. a key ingredient is cement. amanda, according to the u. n's, intergovernmental panel on climate change. the cement industry accounted for 3 times more. c, o, 2 emissions than commercial aviation in 2019. another u. n. report says construction and building you said other source of 38 percent of global c o 2 emissions concrete is the default construction material, at least for large scale projects. an entire new concrete corta is going up in a district of berlin. only one building currently under construction will be mostly made of wood. only its foundations and staircases will be made of concrete architect far h or abby has been working with wood for well over a decade with indefinite if you would definitely pioneers. and as such,

we've also suffered, we had to overcome many obstacles, met with a lot of resistance from the authorities. we are to assemble a team of experts and of course, convince our client's property owners to begin with. it was anything but easy. i and thought by then 48 in berlin as a recent project of his, the 6 story cow up with about 40 apartments is almost entirely made of wood, and a fine list for the 2021 german sustainability. a board for architecture. labor ought to be honest, our practice didn't originally warm to would for ecological reasons. it was 2007 i started thinking about would perhaps 2 years earlier for its aesthetic aspects in front of i bought it. i just found it beautiful. oh, it was only later that i learned how eco friendly it is, and that it binds large amounts of c, o 2 is arc, has never yarrow that not all forgotten the well hello hi rise is not just meant to

be eco friendly, but also an exercise in inclusivity and social cohesion, it won't be condos for the rich, but rather housing for people of all income levels. as is, yeah, it's about living in a neighborhood in a community. if you live in a project like this, you have to have the right attitude to wood as well because it lives and moves and creeks. you have to be able to and want to deal with that when that to build with timber, you have to cut down trees. how eco friendly is that was ricky is what we certainly shouldn't just chopped down entire forest. so they're gone forever. well, we need to use the resources we have in germany and central europe and sell trees, selectively, importing timber from further afield would be less sustainable. with construction and get started at the warehouse site in downtown berlin. but if all goes to plan,

the wooden skyscrapers should be standing by 2020. ah, emma was the final urban mission from us city dwellers on this edition of made for me and the team here in berlin. thanks for watching, sir, said ah, ah ah, ah, ah, with

who ah, they were prisoners of turkish president her to 13 german citizens held in turkey. the charges for politically motivated, their arrests were completely arbitrary. and less than was deep mental newness.

back in germany, they talked about their warranty, political prisoners in her to one's turkey. in 15 minutes on d, w, a through the desert. for l. sasha, a dream comes to the 1st when he's rally in saudi arabia. a special day for the conservative kingdom. and to success for which the women have worked hard global 3090 minutes on d w. oh. hello guys. this is the 77 percent. the platform for

africa. you to be beat issues and share ideas you know, are the channels we are not afraid to capture and delicate because population is growing. and young people clearly have the solution. the future belongs to the 77 percent. every weekend on d w. b closely ah. listen carefully. i. yes, today ah, feel the magic discover the world around you.

subscribe to d w documentary on youtube. ah this is dw news line from berlin, the president of sri lanka, fleas the country, hours before he's due to stepped out. to buy a rush of boxes, sudden departure comes amid widespread protests over his handling of the economic crisis in the country. also coming up, that's a relief.