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[{"key": "dc.contributor.advisor", "value": "Karvanen, Juha", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Into, Niko", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2023-08-29T06:01:36Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2023-08-29T06:01:36Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/88755", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tieliikenneonnettomuudet ovat yleinen uutisoinnin ja tutkimuksen kohde. Onnettomuuksiin liittyvi\u00e4 taustatekij\u00f6it\u00e4 on monia, kuten esimerkiksi liikenteen m\u00e4\u00e4r\u00e4, kuljettajan veren alkoholipitoisuus, v\u00e4symys, nopeus, s\u00e4\u00e4, valoisuus ja liikennej\u00e4rjestelyt. Liikennem\u00e4\u00e4r\u00e4 on selitt\u00e4j\u00e4, johon ei ole suuremmin kiinnitetty huomiota tieliikenneonnettomuustutkimuksissa, vaikka sill\u00e4 on suuri vaikutus liikenneolosuhteisiin.\n\nT\u00e4ss\u00e4 tutkielmassa pyrit\u00e4\u00e4n estimoimaan tieliikenneonnettomuuksien todenn\u00e4k\u00f6isyyksi\u00e4 eri tilanteissa liikenteen automaattisten mittaustietojen (LAM) avulla. Aineiston laajuuden vuoksi tutkielmassa keskityt\u00e4\u00e4n vain valtateill\u00e4 1\u201310 tapahtuneisiin onnettomuuksiin. Valtatiet jaetaan 29 tapaukseen, jotta saadaan aluekohtaista tietoa liikennem\u00e4\u00e4r\u00e4st\u00e4. Aineisto on vuosilta 2017\u20132021 ja valmiin aineiston laajuus on 1 268 544 rivi\u00e4.\n\nAluksi aineistot t\u00e4ytyy saada yhtenev\u00e4\u00e4n muotoon sek\u00e4 m\u00e4\u00e4ritt\u00e4\u00e4 tarkalleen, miten onnettomuuksien todenn\u00e4k\u00f6isyyksi\u00e4 estimoidaan. Mallinnetaan yhden tunnin aikaista onnettomuuden todenn\u00e4k\u00f6isyytt\u00e4 tieosuudella, jossa selitt\u00e4jin\u00e4 ovat liikennem\u00e4\u00e4r\u00e4, suhteellinen ruuhkaisuus, tieosuuden pituus, vuorokaudenaika sek\u00e4 vuodenaika. Mallinnus toteutetaan logistisella regressiomallilla.\n\nAineiston laajuuden ansiosta muuttujakohtaiset p-arvot ovat hyvin pieni\u00e4. Suurimman kokonaisvaikutuksen mallissa aiheuttaa liikennem\u00e4\u00e4r\u00e4. Tien suhteellisen ruuhkaisuuden vaikutus on my\u00f6s selv\u00e4. Tapauskohtaisesti aineistossa havaitut onnettomuusriskit poikkeavat mallin antamista estimaateista, joissain tapauksissa huomattavasti. Tapauksista osa on siis onnettomuusalttiimpia kuin toiset. Mik\u00e4li mallista haluaisi tapauskohtaisesti yh\u00e4 tarkemman, malliin tarvittaisiin lis\u00e4\u00e4 selitt\u00e4ji\u00e4, joita ei k\u00e4ytetyiss\u00e4 aineistossa ollut saatavilla.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2023-08-29T06:01:36Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2023-08-29T06:01:36Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "40", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": null, "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "liikennem\u00e4\u00e4r\u00e4", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "logistinen regressiomalli", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "tieliikenteen automaattiset mittaustiedot", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Liikenneonnettomuuksien m\u00e4\u00e4r\u00e4 suhteessa liikennevirtaan valtateill\u00e4", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202308294793", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Matematiikan ja tilastotieteen laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Mathematics and Statistics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tilastotiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Statistics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.copyright", "value": "\u00a9 The Author(s)", "language": null, "element": "rights", "qualifier": "copyright", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4043", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "valtatiet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liikenneonnettomuudet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liikenne", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liikenneturvallisuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tilastotiede", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tieliikenne", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tiet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "onnettomuudet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "regressioanalyysi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ajonopeus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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