The Mutual Broadcasting System in cooperation with Family Theatre Incorporated presents Song for a Long Road, starring William Holden, Brandon Marshall and Marvin Miller. Gene Lockhart is your host.  Did you ever stop to think how important a family is? Did you ever stop to think what would happen to our country if the family life of this nation should cease to exist? I'm sure most of us can look back to a good father and mother. We learned the meaning of sacrifice from them. We learned the meaning of courage and patience and fidelity. Our fathers and mothers were old-fashioned, so they say. Our mothers brought us up at their knees. Our fathers brought us up sometimes over their knees. They taught us decency, respect. They gave us ideals. They did all this because they were God-fearing people, our parents. They were prayerful. Well, we still need decency and respect. We still need patience and sacrifice. Above all, we need fidelity. Fidelity to each other, to our country and to God. Those are the ideals which made our country great. And those are the ideals which can keep our country great. That's why we say we need prayerful families. Pray as a family. You'll find that prayer will bring peace and happiness to your home. Yes, a world of prayerful homes would indeed be a peaceful and happy world. This is the way the story should begin. Aline, are you listening? Yes, I'm listening. Aline, will you marry me? I most certainly will not. Oh, but a poet is made of stern stuff. And so we shall try once more. This is the way the story should begin. Aline, look at me. I'm looking. Will you consent to be my wife? Your wife? Certainly not. But how does the poet say it? If at first you don't succeed, try, try again? Aline, listen please. I'm listening. Well, look at me. I'm looking. Will you, uh, would it be asking you too much to become Mrs. Joyce Kilmer? Well... This is the way the story should begin. And this is the way it did begin. One beautiful day in June 1908. For he said himself, Joyce Kilmer did, he said, you know, Aline, I can understand the interpretation which makes marriage the end instead of the beginning of a splendid adventure. There should ever be the perfect novel of love that it would begin rather than end. And they were happily married. And, and should I add, and they lived happily ever after? Well, now, that would depend on one's interpretation. Naturally. That would depend on one's interpretation of happiness. For example, Aline, are you happy? Oh, I was never happy, Joyce. A quiet home here in New Jersey. Yes, I know, but, but, hang it, I was never meant to spend the rest of my life teaching Latin to a bunch of high school students. Why, the very best of people are professors. Oh, nothing but declensions and conjugations and, well, it's positively demoralizing, I tell you. Now, now, if I had my way, I'd... Now, Aline, you don't have to look at me like that. Oh, go on.  Yes, for a dollar a pound, or perhaps two dollars a pound. Stop squeezing my hand. Slander your hands and soft and white as petals of moon-kissed roses. Why, the old ladies will swoon when they read my stuff. The critics will come clamoring across the ocean. Joyce Kilmer, Port Laureate of America. America. Aline, I shall develop a beastly mustache and long, dirty fingernails. Oh, Joyce. Now, look, I'll leave it up to you. You leave it up to me. I'll let you decide whether your husband is to stagnate henceforth and forever on the swamps of irregular Latin verbs or whether he is to take root on the immortal hill of poetry. The baby's crying. Your answer. The milk's in the icebox. Speak, whole vision, speak. Stop squeezing my hand. Nothing so exquisite as a slight hand. Could Raphael or Leonardo... The baby'll have hair cups. Oh, and answer, Princess. Shall we or shall we not go to New York? Well, I... I knew you'd say yes. Is that you, Joyce? Yes. Soon? Oh. And how is my poet Laureate of America? Oh. Tired? Come on. Sit down here. Here. There now. Aline, are you happy? Why do you keep asking me that question? Oh, it's the kind of a question a man has a right to ask his wife. Come on now and sit beside me. Look at me. I'm looking. You know, selling books in a store for $8 a week isn't exactly a thrilling occupation, is it? Joyce, I've told you it's going to take time getting started. You just can't come into New York and expect publishers to... Well, to eat up your work? No. It takes time and patience. You know yourself, poets never start off by being poets. Oh, is that so? Well, what do they start off by being? Oh, street cleaners, assistant clerks and soap factories. And, um, even book salesmen. Now, that's just my point, Aline. I'm not even a good book salesman. Too much arithmetic connected with the confounded thing. Now, what is arithmetic to do with selling books and stop squeezing my hand? Arithmetic, my little princess. Arithmetic has a lot to do with selling books, as Charles Scribner's sons will soon discover. Oh, what happened now? Oh, I sold a rare book today. Sold it for $1.50. Well? I made a slight mistake. The manager told me the book was not worth $1.50. No? No. It was worth $150. Oh. And so an aspiring young poet and his little princess and their babies managed to live in New York on the magnificent sum of $8 a week. And did they live happily ever after? Well, that depends upon one's interpretation of happiness. These are my sentiments, Aline. Joyce, you know, you've changed so much in three years. Yes, I suppose. But a man may be forgiven the sin of getting tired at times. I'm tired, Aline. I know. And there are thousands, tens of thousands like us who are tired. I've seen them in subways and street cars and seen them outside of offices waiting for interviews. Nervous, tired people who stare at the wall of your head when you look at them. You're in a mood, Joyce. And it's a fact, I tell you. The world is lopsided with selfishness. There are people walking the streets who don't know where they're going to get their next crust of bread. And do you think your socialist friends can solve the problem? Socialists. The socialist might have the right idea. Well, it's getting late, Joyce. You better get some sleep. Ah, there's too much time for sleeping. Writing for the socialist paper again? Oh, I know what you're thinking.  You might take up typing. I won't take up typing. Joyce, aren't you getting a little loud lately? Not half loud enough for a lopsided world. Oh, well. What are you doing? Saying my prayers. You're not going to say your prayers. Joyce, what in the name of Heaven? Heaven's God. There is no God. Do you hear? Joyce. There is no God. All the good things a man holds precious in this life. All the long cherished hopes and dreams. All the faith that a man has ever placed in his God and himself and his family. All these are candlelight for living. But there are times when the flame of faith wavers. When the flax begins to smoke and smolder. And then it takes only the slightest, the very slightest. It happened this afternoon, doctor. This is your second child, Mrs. Kilmer? Yes, doctor. How old? Nine months. Hmm. Well, I'm sorry. There's not very much we can do now. The germ has already struck. Yes, doctor. Infantile paralysis is a strange affliction. We don't know where it will stop or when. The only thing you can do now is wait and hope for the best. Yes, doctor. Elaine, Elaine, where is she? Where's Rose? She's in here, dear. So it's... Infantile paralysis. My baby, my little girl is going to be paralyzed. And there's nothing we can do, Joyce. There's nothing we can do? Nothing? Yes, the time comes when the candle flame of faith wavers. When human flax smokes and smolders. But comes the clean, healing breath of pain. And smoking flax leaps to flame. And man lives by blessed candlelight again. Joyce. Yes? I didn't know how you were going to take it. I was afraid that you... It's simple and clear now. You can't build a home on rhyming couplets. Poetry. You build it out of flesh and blood and spirit. And faith in God. You build it out of pain and love. And at night I know what love is. It's poignant and accustomed pain. Help my baby. Heal her. But even... Even if my child should never walk again... I know this. I know she's led me home. And a little child had led him. Aline, Aline, I've got it, I've got it. What on earth, Joyce? Behold your beloved spouse. Ouch, oh, your whiskers. Aline, look at me. I'm looking. Now good. Now you have the unusual privilege of being a book reviewer. They've accepted my poem for the Pathfinder. Moods Magazine, Aline. They're going to publish my verse. Aline, another one. Can I write the boss figures you deserve a spot in the Times Magazine section? You mean permanent? Right, doing interviews. Interviews? Wonderful. And would you mind giving the American public your views on Oh Henry, Mrs. Gerald? Oh Henry? Yes. Some people call Oh Henry the 20th century Balzac. Some call him the American mobasin. Now what would you call him? I'd call him a pernicious influence. Oh, this is the life. It's quiet here in the hills, Aline. Man couldn't want much more in his life. A home for children. A wife who's beautiful with black ribbons at her throat.  The world is good. Except I watch her lying there on the grass. My little paralyzed daughter. Sixteen years the doctors say, Joyce. Yes, sixteen years before she can walk. Oh, that's a long time. Yes, it is. Still, I... I was just thinking. I was just thinking how light a cross can be. When the cross you're carrying is for someone you love. When love is the burden. I was thinking how tightly the arms of a cross can bind a husband and wife. For more than sixteen years, Joyce? For always. Nothing could ever separate us, Aline. Nothing? Nothing. Come here and look at me. I'm looking. You're a very young wife. Am I? Mm-hmm. And lovely. What's troubling you? Nothing. Nothing at all? Oh, Joyce. My little princess is younger than her babies. And stop crying in my ear. It tickles. What's the matter with you? I just wanted to hear you say it again. Say what? Say nothing can ever separate us. All right. Nothing can ever separate us. All right. I know what you're going to say. Look at me like that, Aline. Go on and say it. You're going to war. I suppose I'm unreasonable, but... Being a woman, I suppose I'll never understand this man's world of war. It's not that I'm afraid of pain, Joyce. Three weeks ago, little Rose died. And last night, I bore you another son. Pain? I don't fear pain. It's only... I know. I know. If I could only be sure that we could have the years ahead together. Thousands are saying that tonight, Aline. But remember, I told you once, nothing can separate us. Say it again, Joyce. Neither pain nor sorrow nor distance can separate us. Say it again, Joyce. Neither suffering nor heights nor depth can separate us. War horizon. Seating to the sixth area. I think your name is Kilmer. Right. Well, I... I didn't join. I adopted the fighting 69th. I'm Irish. Irish? With a name like Kilmer? Half Irish. Half Irish? Well, my great, great, great, great grandfather was Irish. Proceeding to the sixth area. And this was no man's land. Yes, this is no man's land. Little Eddie couldn't believe it was no man's land. This afternoon, he said to me, Kilmer, it gets awful quiet around here. But then... Just like that it came. In the afternoon. A clumsy, wobbling torpedo shell. Something dangerously casual that catches a man tying his shoe or opening a pack of cigarettes. It caught Eddie. It caught Kennedy and Sage and Finn and Galvin and Sullivan. And 21 of them. Buried them alive in a dugout. Donovan called the engineers. Called everybody. But the soft earth kept slipping in on them. I saw the engineers crying this afternoon. So I wrote it for Little Eddie. And the rest of them. And the chaplain read it under the trees. And Stokes was trembling when he reached for the bugle. In a wood they called the Rouge Bouquet. There is a new-made grave today. Built by never a spade nor pick. Yet covered with earth ten meters thick. There lie many fighting men. Dead in their youthful prime. Never to laugh nor love again nor taste the summertime. For death came flying through the air and stopped his flight at the dugout's stair. Now over the grave abrupt and clear three volleys ring. And perhaps their brave young spirits hear the bugle sing. Go to sleep. Go to sleep. Slumber well where the shells screamed and fell. Let your rifles rest on the muddy floor. You will not need them anymore. Dangers past. Now at last. Go to sleep. Major Donovan, Major Donovan. Well, what is it Kilmer? I hope I'm not troubling you sir. Not at all. I heard we're moving up tomorrow. That's right. Well, your battalion is going to lead the way. You'll pick up a lot of information, don't you? Well, I'm in the intelligence section, Major. Well? I was wondering if you couldn't arrange for me to go along. I don't see how I can possibly do that. But Major, you do need a battalion adjutant. All right. All right. You win. Thank you, sir. I hope you can make out this writing, Aline. I have a picture before me tonight. I can almost hear you speaking again. With a voice coming across the white roads of France. Unlike the voices of all the women of the world, it keeps saying. Say it, Joyce. Say nothing can separate us. Aline, you won't mind my writing this. I've never quite recovered from the wonderment of being husband to a wife. You're always before me. And with me. In my heart and brain. But it's dangerous to write this. It draws so tight the cords that bind me to you. Well, we ought to be together sometime. Inevitably. And soon in the terms of eternity. For we are absolutely one. Incomplete apart. And in heaven is completeness. How unhappy must lovers be who have not the gracious gift of faith? And people and things at home? I'd like to be there again. I'd like to see Kenton and Deborah and Michael and Christopher. And some dry sherry. And a roast of lamb with mint sauce. And Blackwood's magazine. I'd like to see a straw hat and a circus. And most of all, I'd like to see you. Goodbye now. I have some work to do. And love me exceedingly. Keep low, Kilmer. Yes, sir. Sitting pretty up there on the ridge. Got us in the clear, you think? Wow! You better be careful, Major. Bring your head, Kilmer. Watch yourself. Just remember the manual, Kilmer. Keep flat. And if you got a move, move fast. Machine gun nest is up there. Over the ridge of the hill.  Well, what do you say, Kilmer? Do you, don't you? You don't have to move. You don't want to. You have no orders to move. But you're gonna move, Kilmer. Just crawl like this. Just like this, to the top of the hill. And all you have to do is take a look, Kilmer. And spot that nest. That's all. Suppose they'll be waiting for me. Just as soon as I lift my head over the ridge, they'll...  Here you are, Kilmer. Here's the ridge. I wonder if it's still barking. Well, that's all right. That's all right. Here you go. Big breath, Kilmer. You're gonna see something right now. Here goes. They found him lying still. And his eyes were looking out over, away over the ridge. They buried him where the scarlet poppies nod by the river Orc. And so, Sergeant Joyce Kilmer, patriot and poet, died. Wait a minute, mister. Oh, what is it you wish? You didn't answer the question for the people. What question? The question you've been asking all night. Did they live happily ever after? Excuse me, there's been a slight interruption at the... Exactly. Who are you, sir? Who am I? I am the interruption. I'm the question lingering on the tongues of millions. I'm the voice of the kids who fight the wars. The voice of the guys who screamed across the continents and across the world. I'm the voice of human pain. And they're trying to choke me again with speeches and promises. They're choking me with new headlines, new suspicions, new hates. Did they live happily ever after? Did they? Who will answer the question? Trees. There is a tree planted on a hill. It is a dead tree which has blossomed with the terrible contradiction of man's planting. For trees were never meant to blossom with blood. God, our Father, did they live happily ever after? Can we live happily ever after? Did one soldier die in vain on a hill with half his songs unsung? Have thousands died?  Or is it possible, Lord, that this is the pruning? Can it be possible that in our days we shall at least see love? Love of neighbor stripped the spikes of cruelty and suffering from the crossbeams of a world in contradiction? Grant that it be so. Be thou the patience in our planning and the humility in our heart. And grant, good Lord, that all men, the men of the north and south and east and west, may rest always in the soft shadow of peace where trees are not crosses, but living things that look at God all day and lift their leafy arms to pray. A soldier poet would have it so. Then shall all men live happily ever after. You don't have to think very long to see there's a lot for which each of us has to be thankful tonight. We're thankful to be alive, thankful for our homes, for our families, for the peace and happiness we have together. Yes, and if there should be unhappiness and misunderstanding in your home and doubt and mistrust in the world, it's because there are too many of us who think we're able to do the job alone, to do it by ourselves. We can't. We need God's help. We need the help of prayer. If enough of us are really interested and earnest about world peace, we'll take time out for prayer. So make family prayer a daily family practice in your home and you'll discover what so many already know. A family that prays together stays together. Before saying good night, I'd like to thank William Holden for his performances, Kilmer, Brenda Marshall for her portrayal of Eileen and Marvin Miller for his narration. Our thanks also to Timothy Mulvey for writing tonight's play and to Max Tehr for his music. Mel Williamson directed and John Ryder produced the program. Others who appeared in our play tonight were Doris Butler, Hal Sawyer, Gene Layton, Peter Rankin, and Don Morrison. Next week our family theater star will be Maureen O'Hara, Regis Toomey and Frank Phelan in brass buttons. This is Gene Lockhart saying good night and God bless you. The series of the Family Theater broadcast is made possible by the thousands of you who felt the need for this kind of program, by the mutual broadcasting system which has responded to this need by the actors and technicians of the motion picture and radio industries. This program is heard overseas through the facilities of the United States Armed Forces Radio Service. This is the Mutual Broadcasting System.


I would like just to give a context of his work. So this is a world that has been developed in a short scientific mission with a joint collaboration between Bresig Group and Tieno.  No, very friendly. So we did already a six weeks collaboration. I will just briefly show what we are able to do. So as I said, and I put here an awful proactive S&M tool, damage identification, finite analysis and probabilistic methods. So we have three main tasks. So basically we want to investigate the most damage scenarios and key performance indicators for bridge structures. And then apply this idea to a case study, tasks to industry bridge, okay? And the final task, which we will do later in this summer, it's exactly quantifying the value of these proactive tools that you want. So what I will present here mainly is the first two tasks and some introduction to the last one I've been already thinking about because it's the most challenging, at least personally for me, as an expert on storage engineering. So let's start. So how could we anticipate damage for the laser bridge by using the available data and the available data? What is the available data? So basically, oh, before that, just to show you my presentation, the decision scenario, I will just briefly present the structure, the military system, infinity element model, the damage scenarios and performance indicators that were selected, then the methods that were applied were mainly, okay, this is more technical, responsible for smuggling, and the basic updating, that is a key term explorer, exploratory power, but this is based on basic methods. Then I will present some results, try them, get into the idea of the value of all these information based on the ACN data. And finally, some open questions that I would like to address, not only to Greece, because they are the owner of this bridge, but in the audience in general. So this is the laser bridge. It's one of the longest bridges in Europe and even in World War. Okay, some indications about the military system are the most impressive. I think it's that we have a number here that every here is arriving to the database around one million records. And so this is a big problem for Greece, which what I do with one million records per year on a decision basis for this bridge. So we started also after having this monitoring system during my PhD in 2000, which I concluded in 2012. We did a lot of finite element models for this bridge, not only for the main bridge, but it is here presented, but also for the broad fire lines. There you are. Several models. And I just highlight here how accurate the model was to assess all the phases, the construction phase, the loading test, and the long term. Okay, these are very nice results. Of course, I selected the ones that most impressed, but of course, I think the most challenging to predict is the long term, which is about these trends is mainly affected by long term effects like grip shrinkage and thermal effects. But overall, if I present this, we gain confidence in both sides, either from the monitoring data or from the finite element model, because things match. And there is no calibration in the model. So we are confirming either via modeling or either via observation that things make sense, which brings confidence on the system. So in this context, is how to take advantage of such information for this case, where we have a very important bridge in terms of socio-economical aspect. The impact is huge because it's one of the critical links around this one. We have very comprehensive information in relation to the structure, not only the monitoring data, but also characterization of the materials, the loading, construction sequence, the monitoring data, the finite element model. So how we could extract benefits from this. So there was a discussion in one of the previous meetings in this cost action that I had with Wim and his colleague Agnieszka, which is not here, but perhaps we could look to this by looking to these impressive results, we use this finite element model as a kind of individual bridge, because in fact, it's more, it's so precise, I'm not saying that it's a perfect model, but it's quite precise in terms of the characterization of all important aspects of the structure, geometry, materials, loading and time history, which is proved by these results. So in one of these discussions, we said perhaps, okay, of course, one of the difficulties in civil engineering, when compared to mechanical engineering, is that we cannot build 100 bridges equal and then select five to demolish and do some tests, because we do not, whereas in mechanical, I can produce 1000 cars and then they select some of them to do a motor test. So we went to this idea, go around this by using this model as a virtual bridge. So we have the model in the computer, but look it as a bridge into a computer. This is the bridge. So we started thinking, let's try to explore some damaged scenarios, which we may think that might be the most critical or one of the critical ones for this bridge. So basically we come up with four. So we came up with some problems on the bearings, for example, with some strange movements. We have a second scenario about if you lose some stress on the external tangents, a third one, which also is quite important because this bridge is located in the seismic zone in Lisbon. So we also explored some settlements of two piers, the criteria was mainly because between these two piers, it's defined in the navigation channel. So it's critical also to follow this particular zone of the bridge. And also a third one, which is about let's suppose also that whatever reasons, we have some loss of stiffness in some critical sections. Perhaps above the piers and somewhere in the mid-spines, we may have some cracks which will decrease the stiffness of the sections. So we pick this, we get into the model. And so as I'm saying, we will have four different scenarios and from this big database that we have from the zero bridge, from the matrix system, we select graph sensors, which measure displacements, rotations, strains, and then we come up with a huge database that this is what was explained about response surface, which is able, for example, for one case, what it tells you, for example, for the damage scenario of loss of stress in terms of percentage, no presence loss, total failure. We may understand a little bit when we have, for example, a scenario of not only one time and the two tangents, we try to understand how the sensors on the bridge might react, okay? So basically, all this database tells you some information, how the sensors will move for this different for damage scenario, okay? So that is also included in this framework. It was, so this, just highlight this information, in fact, is from this virtual bridge, because we cannot produce damage on the bridge, yeah? But we can use the finite element model because it's so accurate to try to have some understanding how the sensor will change for this damage scenario. With these several measurements, then we had a little bit of uncertainty, which in fact is derived from the data that is in the system, because we are measuring, in fact, we are measuring all these quantities in the field. So we picked these, we had some uncertainty, and so then let's see how this can, let's say, be able to detect some damage. So then my colleagues at TNO, they are developing an automatic probabilistic damage identification in basic framework, so whatever it is. So let's, for example, look to the peer settlement, okay? So let's suppose in this case that my dimensions here is that I may have only a settlement on peer one in this direction, or I may have also a settlement on peer two in this direction, or I can have a combination of all the possibilities, okay? From zero to one, in terms of a percentage of severity when you assume a specific power, okay? We assume for this illustration a settlement of fact 50 millimeters. So this my colleague, I didn't tell him then what was the magnitude, I didn't tell them how much the settlement value was, neither this one, I just told them that the damage was a peer settlement. I gave them the database that I presented before and they did some guess, okay? So here what they tell you is that from our approach, I can tell you with 1% confidence that the peer settlement on peer one is around 35% of the maximum value and the peer two is around 25%. Then we had a meeting, this is real, what I'm saying. And then I tell them what was the damage that I put it and in fact it was not so far, it is within the area that they predict. Which is interesting, so this is what we say a proactive, but more than this what was also interesting to produce as an illustration, what shows here is pairs of sensors, okay? It's a double entry table, which tell you a little bit, for all these 12 measurements that we have in the bridge, which combination might give you the most informative, which pair is the most informative for this specific level scenario? And for example, here we can see that when you combine the vertical displacement in second span with the third span, or the first with the second, in fact is the most informative, which makes sense of course, because if the settlement is occurring in these two pairs, these vertical displacements here are quite sensitive to this change. But this was interesting to say is that they didn't know what was the magnitude of this settlement. So what is more interesting here is that based on this type of results, we can build some more useful information, my point of view, which is about, as I said, we measure different things, very displacements, vertical displacements, rotations, strengths on the concrete, yeah? So perhaps we can break down that previous table in something that can tell you that for this scenario, that much scenario for the peer settlement, it is not perhaps worthwhile to invest in installing concrete, strengths in concrete, neither in planometers, neither measuring the very displacements, perhaps the most effective way is to measure the deflections. It's the ones that gives you the most information about this specific depth. So if we enlarge this scenario, that is analysis, not considering the four-damage scenarios and keep these groups of measurements, we end up with a kind of a catalog which tells you, perhaps, that depending on the damage scenario that you are analyzing, these type of outputs can tell you which type of sensors you should use to identify more accurately the specific damage, okay? For example, if BRISA, but of other owner, has some bridges with scour problems and perhaps some peer settlements, this catalog might be interesting to consult and to understand, okay, if I have some problems in terms of peer settlements, if I look to this information, I can see that the best investment might be using vertical displacements rather than investing in, which is something normal, dozens of strategies embedded in the country, yeah? So, the idea is, by picking out in this catalog, is now what we want to do now in August, is quantify the volume of information. I've been thinking about it, and in fact, last March I was invited to do a presentation at Bars in Germany, well, BRISA was invited and I went there and I met some people and I crossed with this nice paper from Sebastian. And this decision tree, I found it very interesting because at least as a starting point, I thought perhaps we can look to this example and we can look, for example, in this case, so I'm extracting this picture from the paper, which is here seated, and we could look to this, no inspection or inspect with the support of the ASA jam on the bridge, these are the two options. Then, about the damages, we can say, okay, let's now test this for these four damages, okay? For these combinations, we need them to quantify the benefits of the costs along this decision tree that we have. Once we quantify these costs, we go back and then we can be able to quantify the volume of the information for each damage scenario that we're exploring. And the final idea, at least at this stage, I might be wrong, but this is my idea, we can end up with something that could be a catalog for decision. So basically, it's something like this. So I presented this table before. We have different damage scenarios in this catalog. In this case, we have only four, this can be extended. We are only also using four different type of measurements, which can be also enlarged, if you want. Then we can have this type of catalog. And then, based on the volume of information, we can add a column here, which can tell you what is the value that you get as a decision maker if you use this information and the sensors to have, at least we hope, a benefit for a better maintenance of the structure. So in terms of identifying the damage in an advanced approach and not leaving the structure, they are dating until the next inspection that you will do. So, finally, I have some questions. My question is, and maybe for Prisa perhaps, is this relevant to complement the visual maintenance operations for this specific bridge? Something that is quite important to discuss and also for the quantification of the volume of information of this approach is what is the type and magnitude of the cost that are here involved, which I think is not only about maintenance and repair, but you are talking about this type of damages for this type of bridge can be also a reputation of the company, which is something that how we can maintain this cost. Also, what is important is that we should have the correct order of magnitude of this cost because they work as gradients in this problem. So if you are working 1,000 or millions or billions, things will change. And also, this is very clear as an objective for this short scientific mission is, our relevant is for the decision maker, for example, Prisa, in having a catalog of ways and solutions for tackling support in the most likely damaged scenarios and mainly from the point of view of an infrastructure park, not only for one bridge, but perhaps you have a catalog when you have an infrastructure park with 1,000, 2,000 bridges, could this catalog, as I presented, be useful to get more knowledge, more effective approach and proactive for a better management of the structures? Helder, thank you very much. And we address directly the questions, maybe the catalog question first. What do you think? Is such a catalog possible? Can it be valid for a class of structures? Is it useful? What is your idea? Hello, can you do them from your way? We actually made a catalog like this for a class of bridges in our country or in our county, and it was very useful because it ended up with us changing the maintenance strategy, from maintaining them to letting them expire and replacing them with new ones. And that was a class of bridges that we have several hundreds of. So it was a very useful exercise to do. It was something like this. The visualization was similar, but the design patterns were similar. So I think I'm getting the correct answer. Thank you. Any other reflections? My name is Antoni Berri. The camera was the designer of the Ziri Bridge. And first of all, I would not worry more about the Ziri Bridge behavior once we have such a good position on it. Now, let's think a little about the monitoring systems. I think, first of all, as it was in this case, the monitoring systems must be conceived on the design phase. It's very important. Second, we must define clearly the alarms levels. It's very important for each owner to have the alarms levels perfectly defined. A specialized firm or laboratory or university can conceive and supply the monitoring system. But after the construction, it's important. There must be some entity responsible for the collection and treatment of data, because one million data per year is the big data. And it's also important to separate the effects that we can analyze with that data. For example, to separate the effects of the temperature from the creep and shrinkage, so we can clearly understand the bridge behavior. After that, I think it's a very important designer to be consulted to compare the real behavior of the bridge with his model. Because now, perhaps, the elder knows the bridge better than I, but I think me and my team we know very much about it. And the bridge was opened ten years ago, and since then I consulted database two times. So I don't know if it is okay or it's not okay. And I think it's important to know. So for you, which work on the, let's say, the investigation phase, it's important to know that you have to transform the million of data in several alarm levels that must be clearly defined for the region to act. Because after those alarm reach, it's very important to have clarified, to have perfectly identified what action should be taken. One other thing that I want in this presentation, another presentation I have seen, I think it's very important to work to increase the sense of life cycle. Because, for example, if we have corrosion sensors with a life cycle, a useful life of five years, it's nothing like that. We must have sensors that remain favorable for 20 years or one more. So thank you very much for your presentation. Just one more thing. After all this, it's very important that the collected data after treatment should be analyzed by code authorities. Because to help to calibrate the prescription of the codes. So just a brief answer because I think it deserves a lot of attention. I realize that Professor Antonio prepared very well this discussion for his presentation. I can tell you that in fact I'm working with Grisa to put this data again available to whom Grisa besides that this should be consulting. All the data is properly analyzed because I think you are the father of the bridge in a certain way and you are right about the thresholds that we should have this very clearly defined. I think the design of the bridge should take an active part of this discussion of these thresholds. It makes sense to have this discussion with you. And also something that is important is another discussion but I don't believe as an expert that only putting thresholds to all the sensors is the best approach for the utilization of this system because you have around 400 sensors if it is only basically putting thresholds and then if something triggers that something goes up some thresholds there must be as a representative to understand from the data what is happening and then you can verify with the model. I think there is two levels here. I think there is a level of operation level which Grisa can do by themselves. There are some algorithms that help them to have some understanding of the patterns that is happening then if something goes really wrong depending on this severity they can go to a second level and consult them. If it is really very severe then it is a third level whatever it is but this should be gradual and I think there is a lot of work here to be done at the first level which is the processing of this information from the data which is not all good restricted to put thresholds on in the sensors but I can continue the discussion with you if you are happy. I would like to know if you are happy. Thank you very much. I would like to put the threshold, the designer. You recommend the designer. I am saying that this should be discussed with the designer. With the designer. I think so. Because the knowledge that the designer has from the truth is quite relevant. Of course, of course. In my opinion we should not confuse thresholds with automatic thresholds. We are not talking about automatic actions. There is nothing, of course. All the data should be analyzed. In my opinion, as I told you before in fact the best the team in best conditions to analyze the information in fact they have the model they can interpret all the information. We are not talking about automatic thresholds or automatic actions. This kind of complexity is nothing. We are talking about analyzing the information and get a lot of levels of alert. I like to do anything. At least study. And assume the value. We are talking about, in fact my opinion this could work very properly if we are able to put together all the teams from the investigator all this kind of technology on censoring this crucial as Antonio said and I agree what to analyze where to put the sensors should be discussed with the designer for sure. And after that thresholds should be defined at least to provide us levels to trigger alert. And we are not talking about automatic actions. We are talking about a framework of decisions. The question is that should trigger a process of decision in order to analyze if we should act earlier or you can postpone in order and the target in the end this is the third part the target in the end is to capture all the benefits of this information of the sensory to take the best decisions along the life cycle of the region. The target is in the end of life cycle we can save the most also decreasing the risk and maximizing all the information in fact we are gathering. Thank you very much. So summarizing I think we all agree.