2c:null 2d:["$","title",null,{"children":"Quels sont les retombées environnementales d'un rallye automobile ? | Thomas Parisot | Observable"}] 32:[] 30:{"id":"c8e7decc7db94c19","slug":"emission-co2-rallye-automobile","title":"Quels sont les retombées environnementales d'un rallye automobile ?","thumbnail":"2cae81099ac87276d6e0f1293b75811fe40bf983217af7b1d4331bf43dc5cced","access_level":"public","create_time":"$D2021-07-18T16:49:51.499Z","update_time":"$D2021-07-18T18:26:39.939Z","view_time":null,"first_public_time":"$D2021-07-18T17:42:33.201Z","has_unpublished_edits":null,"fork":false,"stars":1,"starred":false,"owner":{"type":"team","id":"2e47ffb87e7621ba","login":"thom4","name":"Thomas Parisot","avatar_url":"https://avatars-next.observableusercontent.com/20af6aecdac86e856fff9682815248802780c6d963ad6a7e70fe16aa6b8be2c3","tier":"starter_2024","bio":"I design web software, facilitate team work and bake sourdough bread • I believe in autonomy and kindness • @bbcrd alumnus"},"version":325,"publish_version":325,"role":null,"authored":false,"authors":[{"type":"individual","id":"b5360110032f691c","login":"thom4","name":"Thomas Parisot","avatar_url":"https://avatars-next.observableusercontent.com/20af6aecdac86e856fff9682815248802780c6d963ad6a7e70fe16aa6b8be2c3","tier":null,"bio":"I design web software, facilitate team work and bake sourdough bread • I believe in autonomy and kindness • @bbcrd alumnus"}],"members":[{"type":"individual","id":"b5360110032f691c","login":"thom4","name":"Thomas Parisot","avatar_url":"https://avatars-next.observableusercontent.com/20af6aecdac86e856fff9682815248802780c6d963ad6a7e70fe16aa6b8be2c3","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Quels sont les retombées environnementales d'un rallye automobile ?","cells":[{"id":0,"value":"# Quels sont les retombées environnementales d'un rallye automobile ?\n\nJe suis tombé nez à nez avec le [rallye Paul Friedman](http://www.asadrome.com/A-propos-de-l-epreuve-7) lors d'un trajet en auto-stop entre Crest et Saint-Jean-en-Royans. J'ai voulu comprendre ce que ça représentait, en litres d'essence, de gaz à effet de serre rejetés dans l'atmosphère.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"## Le rallye Paul Friedman, en 2021\n\n[Quelles sont les différences entre VH, VHC, et VHRS ?](https://www.oreca-store.com/blog/reglementations-cat/rallye-vhcrallye-vhrs-les-specificites/)","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":34,"value":"viewof vehicules_vh = Range([0, 300], { label: \"Nombre de véhicules modernes\", value: 128, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":52,"value":"viewof vehicules_vhc = Range([0, 300], { label: \"Nombre de véhicules historiques (VHC)\", value: 32, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":53,"value":"viewof vehicules_vhrs = Range([0, 300], { label: \"Nombre de véhicules historiques de régularité sportive (VHRS)\", value: 37, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":69,"value":"viewof kilometrage_total = Range([0, 500], { label: \"Nombre de kilomètres, au total\", value: 286, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"viewof kilometrage_speciales = Range([0, 500], { label: \"Dont kilométrage d'épreuves spéciales\", value: 118, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":94,"value":"## Quantités — consommation, rejets de gaz, etc.\n\n> 1 litre d’essence pèse 750 grammes. L’essence est composée à 87% de carbone, ce qui correspond à 652 gr de carbone par litre d’essence. Pour brûler ce carbone en CO2, 1740 gr d’oxygène sont nécessaires. La somme nous donne donc 652 + 1740 = 2392 gr de CO2 par litre d’essence.\n\n[Source du ratio essence/CO^2^](https://teamrallye500.com/2019/08/12/limpact-ecologique-du-rallye-en-france/)","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":100,"value":"viewof consommation_vh_standard = Range([0, 90], { label: html`Consommation d'essence, en litres par kilomètre (VH, épreuve ordinaire)`, value: 20, step: 0.1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":124,"value":"viewof consommation_vh_speciales = Range([0, 90], { label: html`Consommation d'essence, en litres par kilomètre (VH, épreuves spéciales)`, value: 35, step: 0.1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":150,"value":"viewof pourcent_carbone_litre = Range([0, 100], { label: html`Pourcentage de carbone, par litre de carburant`, value: 87, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":183,"value":"viewof poids_litre = Range([0, 1000], { label: html`Poids d'1 litre de carburant (en grammes)`, value: 750, step: 1 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"## Estimation de l'impact environnemental","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":187,"value":"### Véhicules modernes","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":192,"value":"html`

Un total de ${en_tonnes(total_poids_carburant)} tonnes de carburant auraient été consommées sur le tracé de la course.

Cela représente ${en_tonnes(total_co2)} tonnes de CO² émis dans l'atmosphère.

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":300,"value":"html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":285,"value":"Ça ne comprend _ni_\nd'[autres gaz à effets de serre](https://jancovici.com/changement-climatique/gaz-a-effet-de-serre-et-cycle-du-carbone/quels-sont-les-gaz-a-effet-de-serre-quels-sont-leurs-contribution-a-leffet-de-serre/)\n(vapeur d'eau, méthane, protoxyde d’azote), \n_ni_ les émissions liées à\nl'organisation du rallye (déplacement des participant·es, publicité, tracts, goodies, alimentation), \n_ni_ à celles du public (déplacement principalement).\n","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":194,"value":"total_poids_carburant = ((total_carburant_vh_normal + total_carburant_vh_speciales) * poids_litre) / 1000","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":241,"value":"total_co2_par_km = (poids_litre + (poids_litre * 2.35)) / 1000","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":225,"value":"total_co2 = total_co2_par_km * (total_carburant_vh_normal + total_carburant_vh_speciales)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":22,"value":"## Annexes","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":24,"value":"import {Range, html} from \"@observablehq/inputs\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":207,"value":"en_tonnes = (value) => Math.round(value / 1000).toLocaleString('fr-FR')","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":166,"value":"kilometrage_hors_speciales = kilometrage_total - kilometrage_speciales","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":163,"value":"total_carburant_vh_normal = vehicules_vh * kilometrage_hors_speciales * consommation_vh_standard","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":173,"value":"total_carburant_vh_speciales = vehicules_vh * kilometrage_speciales * consommation_vh_speciales","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":277,"value":"","pinned":true,"hidden":false,"mode":"html","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W32","stdlib":"1"}} 31:"$30:body"