{"id":"https://openalex.org/W3033103407","doi":"https://doi.org/10.1109/tits.2020.2994468","title":"Network-Level Coordinated Speed Optimization and Traffic Light Control for Connected and Automated Vehicles","display_name":"Network-Level Coordinated Speed Optimization and Traffic Light Control for Connected and Automated Vehicles","publication_year":2020,"publication_date":"2020-06-05","ids":{"openalex":"https://openalex.org/W3033103407","doi":"https://doi.org/10.1109/tits.2020.2994468","mag":"3033103407"},"language":"en","primary_location":{"id":"doi:10.1109/tits.2020.2994468","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tits.2020.2994468","pdf_url":"https://ieeexplore.ieee.org/ielx7/6979/9599518/09109692.pdf","source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Intelligent Transportation Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://ieeexplore.ieee.org/ielx7/6979/9599518/09109692.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5014453545","display_name":"Mehrdad Tajalli","orcid":"https://orcid.org/0000-0002-4161-7344"},"institutions":[{"id":"https://openalex.org/I137902535","display_name":"North Carolina State University","ror":"https://ror.org/04tj63d06","country_code":"US","type":"education","lineage":["https://openalex.org/I137902535"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mehrdad Tajalli","raw_affiliation_strings":["Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA"],"raw_orcid":"https://orcid.org/0000-0002-4161-7344","affiliations":[{"raw_affiliation_string":"Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA","institution_ids":["https://openalex.org/I137902535"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064176682","display_name":"Mehrzad Mehrabipour","orcid":null},"institutions":[{"id":"https://openalex.org/I137902535","display_name":"North Carolina State University","ror":"https://ror.org/04tj63d06","country_code":"US","type":"education","lineage":["https://openalex.org/I137902535"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mehrzad Mehrabipour","raw_affiliation_strings":["Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA","institution_ids":["https://openalex.org/I137902535"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086598856","display_name":"Ali Hajbabaie","orcid":"https://orcid.org/0000-0001-6757-1981"},"institutions":[{"id":"https://openalex.org/I137902535","display_name":"North Carolina State University","ror":"https://ror.org/04tj63d06","country_code":"US","type":"education","lineage":["https://openalex.org/I137902535"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ali Hajbabaie","raw_affiliation_strings":["Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA"],"raw_orcid":"https://orcid.org/0000-0001-6757-1981","affiliations":[{"raw_affiliation_string":"Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA","institution_ids":["https://openalex.org/I137902535"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I137902535"],"apc_list":null,"apc_paid":null,"fwci":8.1924,"has_fulltext":true,"cited_by_count":86,"citation_normalized_percentile":{"value":0.98115208,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"22","issue":"11","first_page":"6748","last_page":"6759"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10524","display_name":"Traffic control and management","score":1.0,"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":1.0,"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":0.9995999932289124,"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":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"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/vissim","display_name":"VisSim","score":0.7618207931518555},{"id":"https://openalex.org/keywords/signal-timing","display_name":"Signal timing","score":0.6545178294181824},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.6174265742301941},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5638097524642944},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.5491226315498352},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5226404666900635},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.431482195854187},{"id":"https://openalex.org/keywords/traffic-flow","display_name":"Traffic flow (computer networking)","score":0.42831000685691833},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4119834303855896},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.33037689328193665},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.30013883113861084},{"id":"https://openalex.org/keywords/traffic-signal","display_name":"Traffic signal","score":0.23015445470809937},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.18688735365867615},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.18688693642616272},{"id":"https://openalex.org/keywords/intersection","display_name":"Intersection (aeronautics)","score":0.12196305394172668}],"concepts":[{"id":"https://openalex.org/C2775988433","wikidata":"https://www.wikidata.org/wiki/Q369244","display_name":"VisSim","level":3,"score":0.7618207931518555},{"id":"https://openalex.org/C2776006172","wikidata":"https://www.wikidata.org/wiki/Q7512741","display_name":"Signal timing","level":3,"score":0.6545178294181824},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.6174265742301941},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5638097524642944},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5491226315498352},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5226404666900635},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.431482195854187},{"id":"https://openalex.org/C207512268","wikidata":"https://www.wikidata.org/wiki/Q3074551","display_name":"Traffic flow (computer networking)","level":2,"score":0.42831000685691833},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4119834303855896},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.33037689328193665},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.30013883113861084},{"id":"https://openalex.org/C2987419075","wikidata":"https://www.wikidata.org/wiki/Q8004","display_name":"Traffic signal","level":2,"score":0.23015445470809937},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.18688735365867615},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.18688693642616272},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.12196305394172668},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tits.2020.2994468","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tits.2020.2994468","pdf_url":"https://ieeexplore.ieee.org/ielx7/6979/9599518/09109692.pdf","source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Intelligent Transportation Systems","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1109/tits.2020.2994468","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tits.2020.2994468","pdf_url":"https://ieeexplore.ieee.org/ielx7/6979/9599518/09109692.pdf","source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Intelligent Transportation Systems","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.5299999713897705,"display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3033103407.pdf","grobid_xml":"https://content.openalex.org/works/W3033103407.grobid-xml"},"referenced_works_count":50,"referenced_works":["https://openalex.org/W597872396","https://openalex.org/W833054232","https://openalex.org/W1543403517","https://openalex.org/W1601275632","https://openalex.org/W1931326631","https://openalex.org/W1964554804","https://openalex.org/W1967258332","https://openalex.org/W2008098263","https://openalex.org/W2026662237","https://openalex.org/W2032549372","https://openalex.org/W2037141248","https://openalex.org/W2061962896","https://openalex.org/W2088171372","https://openalex.org/W2093333897","https://openalex.org/W2111979285","https://openalex.org/W2136441099","https://openalex.org/W2145143778","https://openalex.org/W2153425320","https://openalex.org/W2155358670","https://openalex.org/W2160391532","https://openalex.org/W2178213869","https://openalex.org/W2182173516","https://openalex.org/W2249003726","https://openalex.org/W2278557052","https://openalex.org/W2527545631","https://openalex.org/W2566128861","https://openalex.org/W2606206351","https://openalex.org/W2616273432","https://openalex.org/W2713016753","https://openalex.org/W2790005177","https://openalex.org/W2792523831","https://openalex.org/W2800510943","https://openalex.org/W2801572599","https://openalex.org/W2803363818","https://openalex.org/W2807129134","https://openalex.org/W2809453916","https://openalex.org/W2810683824","https://openalex.org/W2862204210","https://openalex.org/W2887421613","https://openalex.org/W2913512536","https://openalex.org/W2913682358","https://openalex.org/W2942618255","https://openalex.org/W2946934061","https://openalex.org/W2947112518","https://openalex.org/W3029232882","https://openalex.org/W6617992031","https://openalex.org/W6623268007","https://openalex.org/W6686049324","https://openalex.org/W6694750158","https://openalex.org/W6778378056"],"related_works":["https://openalex.org/W2352086592","https://openalex.org/W4296099009","https://openalex.org/W2359949788","https://openalex.org/W2001431839","https://openalex.org/W2364075289","https://openalex.org/W2358880583","https://openalex.org/W2378022163","https://openalex.org/W2384670710","https://openalex.org/W1984927645","https://openalex.org/W2386201664"],"abstract_inverted_index":{"This":[0],"study":[1,146],"develops":[2],"a":[3,72,161],"methodology":[4],"for":[5,78],"coordinated":[6,178,204],"speed":[7,88,111,182,198],"optimization":[8,123,183],"and":[9,24,37,43,54,64,76,86,99,112,136,156,181,216,225],"traffic":[10,106],"light":[11],"control":[12],"in":[13,90,154,172,187],"urban":[14],"street":[15],"networks.":[16],"We":[17],"assume":[18],"that":[19,149,177,191,232],"all":[20],"vehicles":[21,56,200],"are":[22,201,237],"connected":[23],"automated.":[25],"The":[26,67,144,167,174,203],"signal":[27,40,179,193,234],"controllers":[28],"collect":[29],"vehicle":[30,33,44],"data":[31],"through":[32],"to":[34,46,93,127,229],"infrastructure":[35],"communications":[36],"find":[38],"optimal":[39],"timing":[41,180,194,235],"parameters":[42,195,236],"speeds":[45],"maximize":[47],"network":[48,84,92,96,185],"throughput":[49,85],"while":[50],"harmonizing":[51,109],"speeds.":[52],"Connected":[53],"automated":[55],"receive":[57],"these":[58],"dynamically":[59],"assigned":[60],"speeds,":[61],"accept":[62],"them,":[63],"implement":[65],"them.":[66],"problem":[68],"is":[69,125,170],"formulated":[70],"as":[71],"mixed-integer":[73],"non-linear":[74],"program":[75],"accounts":[77],"the":[79,83,91,95,101,105,110,114,129,133,142,150,207,230],"trade-offs":[80],"between":[81],"maximizing":[82],"minimizing":[87],"variations":[89],"improve":[94],"operational":[97],"performance":[98,186],"at":[100,118,219],"same":[102],"time":[103],"smoothen":[104],"flow":[107],"by":[108,221],"reducing":[113],"number":[115,213],"of":[116,132,141,165,199,214],"stops":[117,220],"signalized":[119],"intersections.":[120],"A":[121],"distributed":[122],"scheme":[124],"developed":[126],"reduce":[128],"computational":[130],"complexity":[131],"proposed":[134,151,168],"program,":[135],"effective":[137],"coordination":[138],"ensures":[139],"near-optimality":[140],"solutions.":[143],"case":[145,231],"results":[147,175],"show":[148,176],"algorithm":[152,169],"works":[153],"real-time":[155],"provides":[157],"near-optimal":[158],"solutions":[159],"with":[160,189],"maximum":[162],"optimality":[163],"gap":[164],"5.4%.":[166],"implemented":[171],"Vissim.":[173],"improved":[184],"comparison":[188],"cases":[190],"either":[192],"or":[196],"average":[197,210,212,217],"optimized.":[202,238],"approach":[205],"reduced":[206],"travel":[208],"time,":[209],"delay,":[211],"stops,":[215],"delay":[218],"1.9%,":[222],"5.3%,":[223],"28.5%,":[224],"5.4%,":[226],"respectively":[227],"compared":[228],"only":[233]},"counts_by_year":[{"year":2026,"cited_by_count":6},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":15},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":14},{"year":2021,"cited_by_count":18},{"year":2020,"cited_by_count":6}],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-10-10T00:00:00"}