Pratique du Shadowing: Traffic Has a Perfect Solution. Humans Are the Problem. - Apprendre l'anglais à l'oral avec la vidéo
Création de la leçon...
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Stuck at an intersection, you always watch unfold the fundamental problem of traffic.
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On green, the first car accelerates, and then the next, and then the next, and then the next, and then you, only to catch the red.
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Had the cars accelerated simultaneously, you would have made it through.
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Coordination, not cars, is the problem, because we are monkey drivers with slow reaction times and short attention spans.
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Even if we tried, getting everyone to press the pedal on three, two, one, now would be challenging.
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This discoordination limits how many cars can get through an intersection, and when one backs up to the next, that's when city -sized gridlock cascades happen, taking forever to clear.
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In general, more intersections equals more discoordination, which equals more traffic.
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This is the motive behind big highways.
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No intersections.
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Splits and merges, yes.
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Intersections, no. No stopping, no coordination problems, no traffic.
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Well, that's the theory anyway.
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Intersections outside of a highway will back up onto it, again because human reaction times limit how many cars can escape the off -ramp when the light changes.
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But even without intersections, there would still be traffic on the highway.
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Traffic can just appear.
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Take a one -lane highway with happy cars flowing until a chicken crosses the road.
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The driver who sees it brakes a little, the driver behind him doesn't notice immediately and brakes a little harder than necessary, the driver behind him does the same until someone comes to a complete stop.
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And oh look, cars approaching at highway speeds must now stop as well.
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Though the chicken is long gone, it left a phantom intersection on the highway.
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This is what's happened
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when you're stuck in traffic for hours thinking there must be a deadly pile up ahead
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and then suddenly the traffic's over with no wreckage in sight.
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To your relief if you're a good person and mild annoyance if you aren't.
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You just pass through a phantom intersection, the cause of which is long gone.
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And this phantom intersection moves.
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It's really a traffic snake slithering down the road, eating oncoming cars at one end and pooping them out the other.
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On a ring road, a single car slowing down will start an aerobarous of traffic that will last forever, even though there's no problem with the road.
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If the drivers could coordinate to accelerate and separate simultaneously, easy driving would return, but they can't, so traffic eternal.
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On highways, traffic snakes grow if cars are eated faster than excreted, and they shrink if excreted faster than eated,
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dying when the last car accelerates away before the next car must stop.
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Now, in multi -lane highways, there needs be no chicken to start gridlock.
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A driver crossing lanes quickly with cars too close behind is enough to birth a traffic snake
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that lives for hours and leagues.
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It's this quick crossing that causes drivers behind to overbrake and begin a chain reaction.
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But we can make traffic snakes less likely by changing the way we drive.
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Your goal as a driver is to stay the same distance
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from the car ahead as from the car behind at all times.
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Tailgating is trouble, not just because it makes accidents more likely, but because you as the tailgater can start a traffic snake if the driver ahead breaks.
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Always in the middle.
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This gives you the most time to prevent overbraking, but also gives the driver behind you the most time as well.
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And when stuck in traffic, this rule would get all cars to pull apart the snake faster.
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That's the simple solution to traffic, getting humans to change their behavior, perhaps by sharing this video to show how and why traffic happens,
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why tailgaters are trouble, and how we can work together to make the roads better for all.
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The end.
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Except, yeah, wishing upon a star that people are better than they are is a terrible solution every time.
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Instead, what works is a structurally systematized solution, which is exactly what self -driving cars are.
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Self -driving cars can just be programmed to stay in the middle and accelerate simultaneously.
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They'll just do it.
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The more self -driving cars at an intersection, the more efficient the intersection gets a solid lane of self -driving cars vastly increases throughput.
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Hmm, actually, if you ban humans from the road, which we should totally do anyway, you can get rid of the intersection entirely.
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After all, a traffic light is just a tool for drivers on one road to communicate with drivers on another, poorly and coarsely.
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Red equals don't go now, we are coming through the intersection.
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Green equals good to go.
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But self -driving cars can talk to each other at the speed of light.
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With that kind of coordination, no traffic light necessary.
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Just as with a highway, the best intersection is no intersection.
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Humans will never drive this precisely.
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At the intersection, the fundamental problem with traffic that you watch unfold, as with everything, is people.
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So the real simple solution to traffic is no more monkeys driving cars.
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Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale s’appuie sur la vidéo « Traffic Has a Perfect Solution. Humans Are the Problem ». Les mots qui reviennent le plus souvent : traffic, intersection, driver, highway, driving. Cette vidéo contient 57 phrases et 968 mots à répéter en shadowing. La partie parlée dure 5:09. Le locuteur parle vite, environ 188 mots par minute : attendez-vous à des liaisons et à des sons réduits. 82 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.
Vocabulaire clé de cette vidéo
15 mots de la vidéo à retenir, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| intersection nom | /ˈɪntəɹˌsɛkʃən/ | carrefour, intersection |
| snake nom | /sneɪk/ | serpent |
| coordination nom | /kəʊˌɔːdɪˈneɪʃən/ | coordination |
| accelerate verbe | /ɪkˈsɛl.əˌɹeɪt/ | accélérer |
| brake nom | /bɹeɪk/ | frein |
| simultaneously adverbe | /ˌsaɪmlˈteɪnɪəsli/ | simultanément, en même temps |
| phantom nom | /ˈfæntəm/ | fantôme |
| audio adjectif | /ˈɔ.di.oʊ/ | audio |
| fundamental adjectif | /ˌfʌn.dəˈmɛn.təl/ | fondamental |
| monkey nom | /ˈmʌŋki/ | singe, guenon |
| efficient adjectif | /ɪˈfɪʃənt/ | efficace |
| communicate verbe | /kəˈmjuːnɪkeɪt/ | communiquer |
| precisely adverbe | /pɹɪˈsaɪs.li/ | précisément |
| endless adjectif | /ˈɛndlɪs/ | infini, interminable |
| deadly adjectif | /ˈdɛdli/ | mortel, fatal |
Les verbes à particule que vous entendrez
| Mot | Prononciation | Sens |
|---|---|---|
| get through verbe | /ɡɛt ˈθɹu/ | franchir |
| pass through verbe | traverser | |
| pile up verbe | amonceler, empiler | |
| slow down verbe | ralentir, décélérer |
Prononciation à surveiller
Le locuteur utilise 7 contractions et formes réduites, comme you're, aren't, can't. Prononcez-les sous leur forme courte, telles que vous les entendez.
- Les sons « th »: slither /ˈslɪðɚ/, throughput /ˈθɹuː.pʊt/
- Les sons « sh » et « zh »: intersection /ˈɪntəɹˌsɛkʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, efficient /ɪˈfɪʃənt/
- Mots longs — placez bien l’accent: intersection /ˈɪntəɹˌsɛkʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, accelerate /ɪkˈsɛl.əˌɹeɪt/, simultaneously /ˌsaɪmlˈteɪnɪəsli/, fundamental /ˌfʌn.dəˈmɛn.təl/
Les sons difficiles pour les francophones :
- /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: merge /mɝd͡ʒ/, wreckage /ˈɹɛkɪdʒ/
- /r/ anglais — langue recourbée, sans frotter la gorge: intersection /ˈɪntəɹˌsɛkʃən/, accelerate /ɪkˈsɛl.əˌɹeɪt/, brake /bɹeɪk/, grey /ɡɹeɪ/, precisely /pɹɪˈsaɪs.li/
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme intersection, snake, coordination.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.