{"id":"https://openalex.org/W757926711","doi":"https://doi.org/10.1061/jhcea2.0000100","title":"Characteristics of Traffic Flow on Freeways","display_name":"Characteristics of Traffic Flow on Freeways","publication_year":1959,"publication_date":"1959-12-01","ids":{"openalex":"https://openalex.org/W757926711","doi":"https://doi.org/10.1061/jhcea2.0000100","mag":"757926711"},"language":"en","primary_location":{"id":"doi:10.1061/jhcea2.0000100","doi":"https://doi.org/10.1061/jhcea2.0000100","is_oa":false,"landing_page_url":"https://doi.org/10.1061/jhcea2.0000100","pdf_url":null,"source":{"id":"https://openalex.org/S2764742610","display_name":"Journal of the Highway Division","issn_l":"0569-7972","issn":["0569-7972","2690-2486"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310315747","host_organization_name":"American Society of Civil Engineers","host_organization_lineage":["https://openalex.org/P4310315747"],"host_organization_lineage_names":["American Society of Civil Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Highway Division","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"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/A5109007951","display_name":"A D May","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I87216513","display_name":"Michigan State University","ror":"https://ror.org/05hs6h993","country_code":"US","type":"education","lineage":["https://openalex.org/I87216513"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Adolph D. May","raw_affiliation_strings":["Associate Prof. of Civ. Eng. and Highway Traffic Safety Center, Mich. State Univ., East Lansing, Mich"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Associate Prof. of Civ. Eng. and Highway Traffic Safety Center, Mich. State Univ., East Lansing, Mich","institution_ids":["https://openalex.org/I87216513"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5109007951"],"corresponding_institution_ids":["https://openalex.org/I87216513"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.06585366,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"85","issue":"4","first_page":"1","last_page":"21"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10524","display_name":"Traffic control and management","score":0.9961000084877014,"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":0.9961000084877014,"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/T10698","display_name":"Transportation Planning and Optimization","score":0.0012000000569969416,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.000699999975040555,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/traffic-flow-characteristics","display_name":"traffic flow characteristics","score":0.8880000114440918},{"id":"https://openalex.org/keywords/motorways","display_name":"motorways","score":0.9399999976158142},{"id":"https://openalex.org/keywords/controlled-access-highways","display_name":"controlled-access highways","score":0.8949999809265137},{"id":"https://openalex.org/keywords/average-speed","display_name":"average speed","score":0.7149999737739563},{"id":"https://openalex.org/keywords/traffic-flow","display_name":"traffic flow","score":0.9819999933242798},{"id":"https://openalex.org/keywords/vehicle-headway","display_name":"vehicle headway","score":0.9670000076293945},{"id":"https://openalex.org/keywords/detroit","display_name":"Detroit","score":0.5569999814033508}],"concepts":[{"id":"https://openalex.org/C2779240695","wikidata":"https://www.wikidata.org/wiki/Q4383682","display_name":"Headway","level":2,"score":0.8624294996261597},{"id":"https://openalex.org/C168443057","wikidata":"https://www.wikidata.org/wiki/Q7001223","display_name":"Traffic volume","level":2,"score":0.8431569337844849},{"id":"https://openalex.org/C207512268","wikidata":"https://www.wikidata.org/wiki/Q3074551","display_name":"Traffic flow (computer networking)","level":2,"score":0.7899447679519653},{"id":"https://openalex.org/C20556612","wikidata":"https://www.wikidata.org/wiki/Q4469374","display_name":"Volume (thermodynamics)","level":2,"score":0.63221275806427},{"id":"https://openalex.org/C22212356","wikidata":"https://www.wikidata.org/wiki/Q775325","display_name":"Transport engineering","level":1,"score":0.59327632188797},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.5287178158760071},{"id":"https://openalex.org/C168069670","wikidata":"https://www.wikidata.org/wiki/Q2596069","display_name":"Traffic wave","level":4,"score":0.5004012584686279},{"id":"https://openalex.org/C2993660032","wikidata":"https://www.wikidata.org/wiki/Q746984","display_name":"Traffic speed","level":2,"score":0.47044557332992554},{"id":"https://openalex.org/C25492975","wikidata":"https://www.wikidata.org/wiki/Q960570","display_name":"Traffic congestion reconstruction with Kerner's three-phase theory","level":3,"score":0.4556889235973358},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4229058623313904},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.37622982263565063},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.33982548117637634},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.29173344373703003},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20182183384895325},{"id":"https://openalex.org/C2779888511","wikidata":"https://www.wikidata.org/wiki/Q244156","display_name":"Traffic congestion","level":2,"score":0.1209944486618042},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.094139963388443},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.07808783650398254},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.06332430243492126},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1061/jhcea2.0000100","doi":"https://doi.org/10.1061/jhcea2.0000100","is_oa":false,"landing_page_url":"https://doi.org/10.1061/jhcea2.0000100","pdf_url":null,"source":{"id":"https://openalex.org/S2764742610","display_name":"Journal of the Highway Division","issn_l":"0569-7972","issn":["0569-7972","2690-2486"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310315747","host_organization_name":"American Society of Civil Engineers","host_organization_lineage":["https://openalex.org/P4310315747"],"host_organization_lineage_names":["American Society of Civil Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Highway Division","raw_type":"journal-article"},{"id":"mag:3141771572","doi":null,"is_oa":false,"landing_page_url":"https://cedb.asce.org/CEDBsearch/record.jsp?dockey=0011653","pdf_url":null,"source":{"id":"https://openalex.org/S2764742610","display_name":"Journal of the Highway Division","issn_l":"0569-7972","issn":["0569-7972","2690-2486"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310315747","host_organization_name":"American Society of Civil Engineers","host_organization_lineage":["https://openalex.org/P4310315747"],"host_organization_lineage_names":["American Society of Civil Engineers"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Journal of the Highway Division","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5142999887466431,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W632657193","https://openalex.org/W657878456"],"related_works":["https://openalex.org/W651218521","https://openalex.org/W2248995677","https://openalex.org/W1593204776","https://openalex.org/W1996330631","https://openalex.org/W2242954666","https://openalex.org/W1992042924","https://openalex.org/W7096134924","https://openalex.org/W4294250216","https://openalex.org/W613770107","https://openalex.org/W2770987901"],"abstract_inverted_index":{"Traffic":[0],"flow":[1],"characteristics":[2],"were":[3,19],"studied":[4],"on":[5,21],"two":[6],"high":[7],"density":[8],"controlled":[9],"access":[10],"facilities":[11],"in":[12],"Detroit,":[13],"Mich;":[14],"average":[15],"speeds":[16],"and":[17,37,51],"volumes":[18],"recorded":[20],"per":[22,24],"minute,":[23],"lane":[25,49],"basis;":[26],"paper":[27],"presents":[28],"traffic":[29,46,55],"volume":[30,47,56],"characteristics,":[31,33,36],"speed":[32],"vehicle":[34],"headway":[35],"relationships":[38],"of":[39,54],"fundamental":[40],"characteristics;":[41],"it":[42],"is":[43],"concluded":[44],"that":[45,52],"affects":[48],"usage":[50],"distribution":[53],"between":[57],"lanes":[58],"follows":[59],"definite":[60],"pattern.":[61]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}