{"id":"https://openalex.org/W7138937246","doi":"https://doi.org/10.1007/s13177-026-00634-9","title":"Queue Length Estimation at Motorcycle-dominated Signalised Intersection by Using Computer Vision and K-Means Clustering","display_name":"Queue Length Estimation at Motorcycle-dominated Signalised Intersection by Using Computer Vision and K-Means Clustering","publication_year":2026,"publication_date":"2026-03-19","ids":{"openalex":"https://openalex.org/W7138937246","doi":"https://doi.org/10.1007/s13177-026-00634-9"},"language":"en","primary_location":{"id":"doi:10.1007/s13177-026-00634-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s13177-026-00634-9","pdf_url":null,"source":{"id":"https://openalex.org/S118678737","display_name":"International Journal of Intelligent Transportation Systems Research","issn_l":"1348-8503","issn":["1348-8503","1868-8659"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Intelligent Transportation Systems Research","raw_type":"journal-article"},"type":"article","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/A5129789358","display_name":"Tam Vu","orcid":null},"institutions":[{"id":"https://openalex.org/I64519617","display_name":"Hanoi University","ror":"https://ror.org/01mxx0e62","country_code":"VN","type":"education","lineage":["https://openalex.org/I64519617"]}],"countries":["VN"],"is_corresponding":true,"raw_author_name":"Tam Vu","raw_affiliation_strings":["Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam"],"raw_orcid":"https://orcid.org/0000-0003-1708-1647","affiliations":[{"raw_affiliation_string":"Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","institution_ids":["https://openalex.org/I64519617"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5121572512","display_name":"Ngoc Viet Pham","orcid":null},"institutions":[{"id":"https://openalex.org/I4210093659","display_name":"University of Transport and Communications","ror":"https://ror.org/006qk6d61","country_code":"VN","type":"education","lineage":["https://openalex.org/I4210093659"]},{"id":"https://openalex.org/I4210138918","display_name":"University Of Transport Technology","ror":"https://ror.org/04dp8y877","country_code":"VN","type":"education","lineage":["https://openalex.org/I4210138918"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Ngoc Viet Pham","raw_affiliation_strings":["Ticipi Technology and Transport Consultancy Joint Stock Company, Hanoi, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ticipi Technology and Transport Consultancy Joint Stock Company, Hanoi, Vietnam","institution_ids":["https://openalex.org/I4210093659","https://openalex.org/I4210138918"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129906722","display_name":"Hong Nam Thai","orcid":null},"institutions":[{"id":"https://openalex.org/I64519617","display_name":"Hanoi University","ror":"https://ror.org/01mxx0e62","country_code":"VN","type":"education","lineage":["https://openalex.org/I64519617"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Hong Nam Thai","raw_affiliation_strings":["Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","institution_ids":["https://openalex.org/I64519617"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038937448","display_name":"Ngoc Son Nguyen","orcid":"https://orcid.org/0000-0001-5829-8178"},"institutions":[{"id":"https://openalex.org/I64519617","display_name":"Hanoi University","ror":"https://ror.org/01mxx0e62","country_code":"VN","type":"education","lineage":["https://openalex.org/I64519617"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Ngoc Son Nguyen","raw_affiliation_strings":["Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","institution_ids":["https://openalex.org/I64519617"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066668292","display_name":"Tuan Anh Luong","orcid":"https://orcid.org/0000-0001-9569-3564"},"institutions":[{"id":"https://openalex.org/I4210093659","display_name":"University of Transport and Communications","ror":"https://ror.org/006qk6d61","country_code":"VN","type":"education","lineage":["https://openalex.org/I4210093659"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Tuan Anh Luong","raw_affiliation_strings":["Faculty of Transport Economics, University of Transport and Communications, Hanoi, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Transport Economics, University of Transport and Communications, Hanoi, Vietnam","institution_ids":["https://openalex.org/I4210093659"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129856888","display_name":"Van Minh Nguyen","orcid":null},"institutions":[{"id":"https://openalex.org/I142904861","display_name":"Hanoi Architectural University","ror":"https://ror.org/03c8sfz84","country_code":"VN","type":"education","lineage":["https://openalex.org/I142904861"]},{"id":"https://openalex.org/I64519617","display_name":"Hanoi University","ror":"https://ror.org/01mxx0e62","country_code":"VN","type":"education","lineage":["https://openalex.org/I64519617"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Van Minh Nguyen","raw_affiliation_strings":["Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","Vietnam Architecture Investment And Commercial Joint Stock Company, Hanoi, Vietnam"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","institution_ids":["https://openalex.org/I64519617"]},{"raw_affiliation_string":"Vietnam Architecture Investment And Commercial Joint Stock Company, Hanoi, Vietnam","institution_ids":["https://openalex.org/I142904861"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5121560267","display_name":"Viet Phuong Nguyen","orcid":null},"institutions":[{"id":"https://openalex.org/I142904861","display_name":"Hanoi Architectural University","ror":"https://ror.org/03c8sfz84","country_code":"VN","type":"education","lineage":["https://openalex.org/I142904861"]},{"id":"https://openalex.org/I64519617","display_name":"Hanoi University","ror":"https://ror.org/01mxx0e62","country_code":"VN","type":"education","lineage":["https://openalex.org/I64519617"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Viet Phuong Nguyen","raw_affiliation_strings":["Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","Vietnam Architecture Investment And Commercial Joint Stock Company, Hanoi, Vietnam"],"raw_orcid":"https://orcid.org/0000-0002-6613-8577","affiliations":[{"raw_affiliation_string":"Faculty of Transportation Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam","institution_ids":["https://openalex.org/I64519617"]},{"raw_affiliation_string":"Vietnam Architecture Investment And Commercial Joint Stock Company, Hanoi, Vietnam","institution_ids":["https://openalex.org/I142904861"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5129789358"],"corresponding_institution_ids":["https://openalex.org/I64519617"],"apc_list":{"value":2990,"currency":"USD","value_usd":2990},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.27723448,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"24","issue":"2","first_page":"977","last_page":"992"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10524","display_name":"Traffic control and management","score":0.8011999726295471,"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":0.8011999726295471,"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":0.11800000071525574,"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/T11099","display_name":"Autonomous Vehicle Technology and Safety","score":0.02590000070631504,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive 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/queue","display_name":"Queue","score":0.7709000110626221},{"id":"https://openalex.org/keywords/intersection","display_name":"Intersection (aeronautics)","score":0.7231000065803528},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.6316999793052673},{"id":"https://openalex.org/keywords/leverage","display_name":"Leverage (statistics)","score":0.45329999923706055},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4426000118255615},{"id":"https://openalex.org/keywords/microsimulation","display_name":"Microsimulation","score":0.43560001254081726},{"id":"https://openalex.org/keywords/software-deployment","display_name":"Software deployment","score":0.43290001153945923},{"id":"https://openalex.org/keywords/intelligent-transportation-system","display_name":"Intelligent transportation system","score":0.37709999084472656},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.3440000116825104}],"concepts":[{"id":"https://openalex.org/C160403385","wikidata":"https://www.wikidata.org/wiki/Q220543","display_name":"Queue","level":2,"score":0.7709000110626221},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.7231000065803528},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.6316999793052673},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5533000230789185},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5246999859809875},{"id":"https://openalex.org/C153083717","wikidata":"https://www.wikidata.org/wiki/Q6535263","display_name":"Leverage (statistics)","level":2,"score":0.45329999923706055},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4426000118255615},{"id":"https://openalex.org/C2780015235","wikidata":"https://www.wikidata.org/wiki/Q1934035","display_name":"Microsimulation","level":2,"score":0.43560001254081726},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.43290001153945923},{"id":"https://openalex.org/C47796450","wikidata":"https://www.wikidata.org/wiki/Q508378","display_name":"Intelligent transportation system","level":2,"score":0.37709999084472656},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36169999837875366},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.359499990940094},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.3440000116825104},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.3402999937534332},{"id":"https://openalex.org/C2776006172","wikidata":"https://www.wikidata.org/wiki/Q7512741","display_name":"Signal timing","level":3,"score":0.3352000117301941},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.3346000015735626},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.32339999079704285},{"id":"https://openalex.org/C22684755","wikidata":"https://www.wikidata.org/wiki/Q847526","display_name":"Queueing theory","level":2,"score":0.32179999351501465},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.3084000051021576},{"id":"https://openalex.org/C12713177","wikidata":"https://www.wikidata.org/wiki/Q1900281","display_name":"Perspective (graphical)","level":2,"score":0.3052999973297119},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.30169999599456787},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.2784000039100647},{"id":"https://openalex.org/C58037377","wikidata":"https://www.wikidata.org/wiki/Q92785211","display_name":"Level of service","level":2,"score":0.2727000117301941},{"id":"https://openalex.org/C2987419075","wikidata":"https://www.wikidata.org/wiki/Q8004","display_name":"Traffic signal","level":2,"score":0.26829999685287476},{"id":"https://openalex.org/C95203288","wikidata":"https://www.wikidata.org/wiki/Q221682","display_name":"Semaphore","level":2,"score":0.2680000066757202},{"id":"https://openalex.org/C2779888511","wikidata":"https://www.wikidata.org/wiki/Q244156","display_name":"Traffic congestion","level":2,"score":0.2630000114440918},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.2619999945163727},{"id":"https://openalex.org/C2780864053","wikidata":"https://www.wikidata.org/wiki/Q5147495","display_name":"Collision avoidance","level":3,"score":0.2581000030040741},{"id":"https://openalex.org/C2781317605","wikidata":"https://www.wikidata.org/wiki/Q7832483","display_name":"Traffic analysis","level":2,"score":0.257099986076355},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2563999891281128},{"id":"https://openalex.org/C121704057","wikidata":"https://www.wikidata.org/wiki/Q352070","display_name":"Collision","level":2,"score":0.2554999887943268},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2531999945640564}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s13177-026-00634-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s13177-026-00634-9","pdf_url":null,"source":{"id":"https://openalex.org/S118678737","display_name":"International Journal of Intelligent Transportation Systems Research","issn_l":"1348-8503","issn":["1348-8503","1868-8659"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Intelligent Transportation Systems Research","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8961085298","display_name":null,"funder_award_id":"B2025-XDA-03","funder_id":"https://openalex.org/F4320323346","funder_display_name":"B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u00d0\u00e0o t\u1ea1o"}],"funders":[{"id":"https://openalex.org/F4320323346","display_name":"B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u00d0\u00e0o t\u1ea1o","ror":"https://ror.org/00drv3378"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W2077395649","https://openalex.org/W2102148524","https://openalex.org/W2105187784","https://openalex.org/W2121852672","https://openalex.org/W2134576786","https://openalex.org/W2142458924","https://openalex.org/W2156271471","https://openalex.org/W2193145675","https://openalex.org/W2341949230","https://openalex.org/W2508384486","https://openalex.org/W2554865529","https://openalex.org/W2963037989","https://openalex.org/W2982770724","https://openalex.org/W2997192890","https://openalex.org/W3136184032","https://openalex.org/W3156096482","https://openalex.org/W3175778639","https://openalex.org/W3191343975","https://openalex.org/W3205647173","https://openalex.org/W3206041734","https://openalex.org/W3209643259","https://openalex.org/W4221063543","https://openalex.org/W4238267633","https://openalex.org/W4291902336","https://openalex.org/W4386159182","https://openalex.org/W4400444691","https://openalex.org/W4406991883","https://openalex.org/W4407857162"],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2026-03-20T00:00:00"}