{"id":"https://openalex.org/W2746896366","doi":null,"title":"Recent Evolutions of Roundabouts: Methodological Issues and Practical Concerns.","display_name":"Recent Evolutions of Roundabouts: Methodological Issues and Practical Concerns.","publication_year":2013,"publication_date":"2013-01-01","ids":{"openalex":"https://openalex.org/W2746896366","mag":"2746896366"},"language":"en","primary_location":{"id":"pmh:oai:iris.unipa.it:10447/91643","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/10447/91643","pdf_url":null,"source":{"id":"https://openalex.org/S4306401065","display_name":"Nova Science Publishers (Nova Science Publishers, Inc.)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5025334803","display_name":"Orazio Giuffr\u00e8","orcid":"https://orcid.org/0000-0002-9992-6836","observed_orcids":["https://orcid.org/0000-0002-9992-6836"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Orazio Giuffr\u00e8","raw_affiliation_strings":["Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali"],"raw_orcid":"https://orcid.org/0000-0002-9992-6836","affiliations":[{"raw_affiliation_string":"Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112606430","display_name":"Roberta Marino","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Roberta Marino","raw_affiliation_strings":["Energia, Ingegneria dell'Informazione e Modelli Matematici"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Energia, Ingegneria dell'Informazione e Modelli Matematici","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023315446","display_name":"Anna Gran\u00e0","orcid":"https://orcid.org/0000-0001-6976-0807","observed_orcids":["https://orcid.org/0000-0001-6976-0807","https://orcid.org/0009-0008-2275-511X"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Anna Gran\u00e0","raw_affiliation_strings":["Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali"],"raw_orcid":"https://orcid.org/0000-0001-6976-0807","affiliations":[{"raw_affiliation_string":"Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067291522","display_name":"Sergio Marino","orcid":"https://orcid.org/0009-0000-0142-6992","observed_orcids":["https://orcid.org/0009-0000-0142-6992"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sergio Marino","raw_affiliation_strings":["Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"102","issue":null,"first_page":"175","last_page":"187"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10524","display_name":"Traffic control and management","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10524","display_name":"Traffic control and management","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10370","display_name":"Traffic and Road Safety","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/2213","display_name":"Safety, Risk, Reliability and Quality"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13527","display_name":"Road Transport and Highway Systems","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/roundabouts","display_name":"roundabouts","score":0.9340000152587891},{"id":"https://openalex.org/keywords/turbo-roundabouts","display_name":"turbo roundabouts","score":0.9779999852180481},{"id":"https://openalex.org/keywords/intersection-capacity","display_name":"intersection capacity","score":0.5040000081062317},{"id":"https://openalex.org/keywords/gap-acceptance-theory","display_name":"gap acceptance theory","score":0.921999990940094},{"id":"https://openalex.org/keywords/entry-capacity","display_name":"entry capacity","score":0.6819999814033508},{"id":"https://openalex.org/keywords/control-delay","display_name":"control delay","score":0.8830000162124634},{"id":"https://openalex.org/keywords/service-level","display_name":"level of service","score":0.9729999899864197},{"id":"https://openalex.org/keywords/traffic-demand","display_name":"traffic demand","score":0.5019999742507935}],"concepts":[{"id":"https://openalex.org/C539667460","wikidata":"https://www.wikidata.org/wiki/Q2414942","display_name":"Management science","level":1,"score":0.4786564111709595},{"id":"https://openalex.org/C183696295","wikidata":"https://www.wikidata.org/wiki/Q2487696","display_name":"Biochemical engineering","level":1,"score":0.3739432692527771},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.36475878953933716},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.27303725481033325}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:iris.unipa.it:10447/91643","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/10447/91643","pdf_url":null,"source":{"id":"https://openalex.org/S4306401065","display_name":"Nova Science Publishers (Nova Science Publishers, Inc.)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},{"id":"mag:2746896366","doi":null,"is_oa":false,"landing_page_url":"https://pure.unipa.it/it/publications/recent-evolutions-of-roundabouts-methodological-issues-and-practi-3","pdf_url":null,"source":{"id":"https://openalex.org/S2764652296","display_name":"European journal of scientific research","issn_l":"1450-202X","issn":["1450-202X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"European journal of scientific research","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.8155999779701233,"id":"https://metadata.un.org/sdg/11"},{"display_name":"Industry, innovation and infrastructure","score":0.5378999710083008,"id":"https://metadata.un.org/sdg/9"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W829716642","https://openalex.org/W2057534659","https://openalex.org/W87893674","https://openalex.org/W2883249616","https://openalex.org/W1997231020","https://openalex.org/W2035994632","https://openalex.org/W2038888793","https://openalex.org/W2054223561","https://openalex.org/W3132220293","https://openalex.org/W588071556"],"abstract_inverted_index":{"The":[0],"aim":[1],"of":[2,25,36,60,82,128,135,159],"the":[3,57,83,118,126],"research":[4],"is":[5,30,123],"to":[6,44,125],"provide":[7,132],"a":[8,74,141,144,149],"choice":[9],"criterion":[10,117],"between":[11],"innovative":[12,40],"roundabouts":[13,19,41,48,161],"(turbo-roundabouts":[14],"and":[15,17,63,156],"flower-roundabouts)":[16],"double-lane":[18,150],"by":[20],"evaluating":[21],"convenience":[22,136],"in":[23,72,139],"terms":[24],"performances,":[26],"when":[27],"traffic":[28,102],"demand":[29],"known.":[31],"For":[32],"this":[33],"purpose,":[34],"comparisons":[35],"operational":[37],"performances":[38],"at":[39,46,90],"with":[42,96],"regard":[43],"those":[45],"traditional":[47],"were":[49,112],"developed.":[50],"We":[51],"started":[52],"from":[53],"consistent":[54],"assumptions":[55],"regarding":[56],"arrival":[58],"process":[59],"major":[61],"streams":[62,103],"used":[64],"capacity":[65,89],"models":[66],"founded":[67],"on":[68],"gap-acceptance":[69],"theory.":[70],"Having":[71],"mind":[73],"bunched":[75],"exponential":[76],"headways":[77],"distribution,":[78],"we":[79],"proposed":[80],"adaptations":[81],"Hagring":[84],"model":[85],"for":[86,153,157],"estimating":[87],"entry":[88],"intersections":[91],"under":[92],"examination,":[93],"where":[94],"movements":[95],"only":[97],"one":[98],"or":[99,137,143],"two":[100],"conflicting":[101],"can":[104],"be":[105],"observed.":[106],"Suitability":[107],"domains":[108],"(or":[109],"indifference":[110],"areas)":[111],"obtained":[113],"using":[114],"as":[115],"comparison":[116],"control":[119],"delay":[120],"since":[121],"it":[122],"related":[124],"level":[127],"service":[129],"quality.":[130],"Results":[131],"some":[133],"evidence":[134],"not":[138],"choosing":[140],"turbo-roundabout":[142],"flower":[145],"roundabout":[146],"rather":[147],"than":[148],"roundabout,":[151],"both":[152],"new":[154],"installations":[155],"conversion":[158],"existing":[160]},"counts_by_year":[],"updated_date":"2026-10-13T10:08:12.033832","created_date":"2017-08-31T00:00:00"}
