{"id":"https://openalex.org/W3159928485","doi":"https://doi.org/10.1088/1755-1315/708/1/012038","title":"Evaluating the quality of services for bus performance in Alor Setars","display_name":"Evaluating the quality of services for bus performance in Alor Setars","publication_year":2021,"publication_date":"2021-04-01","ids":{"openalex":"https://openalex.org/W3159928485","doi":"https://doi.org/10.1088/1755-1315/708/1/012038","mag":"3159928485"},"language":"en","primary_location":{"id":"doi:10.1088/1755-1315/708/1/012038","doi":"https://doi.org/10.1088/1755-1315/708/1/012038","is_oa":true,"landing_page_url":"https://doi.org/10.1088/1755-1315/708/1/012038","pdf_url":"https://iopscience.iop.org/article/10.1088/1755-1315/708/1/012038/pdf","source":{"id":"https://openalex.org/S4210195883","display_name":"IOP Conference Series Earth and Environmental Science","issn_l":"1755-1315","issn":["1755-1315","1755-1307"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IOP Conference Series: Earth and Environmental Science","raw_type":"journal-article"},"volume":null,"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://iopscience.iop.org/article/10.1088/1755-1315/708/1/012038/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082184424","display_name":"Shuhairy Norhisham","orcid":"https://orcid.org/0000-0003-0318-9964","observed_orcids":["https://orcid.org/0000-0003-0318-9964"]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"S Norhisham","raw_affiliation_strings":["College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","Institute of Energy Infrastructures (IEI), Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]},{"raw_affiliation_string":"Institute of Energy Infrastructures (IEI), Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062896208","display_name":"Muhammad Fadhlullah Abu Bakar","orcid":"https://orcid.org/0000-0002-6923-9082","observed_orcids":["https://orcid.org/0000-0002-6923-9082"]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"M F A Bakar","raw_affiliation_strings":["College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053867775","display_name":"Agusril Syamsir","orcid":"https://orcid.org/0000-0002-5919-0588","observed_orcids":["https://orcid.org/0000-0002-5919-0588"]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"A Syamsir","raw_affiliation_strings":["College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037718934","display_name":"Nur\u2019atiah Zaini","orcid":"https://orcid.org/0000-0002-1335-8373","observed_orcids":["https://orcid.org/0000-0002-1335-8373"]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"N Zaini","raw_affiliation_strings":["College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058560938","display_name":"Nur Lyana Baharin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"N L Baharin","raw_affiliation_strings":["College of Business Management & Accounting, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Business Management & Accounting, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091576289","display_name":"Nur Syafiqah Mohd Shkuri","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"N S M Shkuri","raw_affiliation_strings":["College of Energy Economics & Social Sciences, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Energy Economics & Social Sciences, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035544418","display_name":"Noorazizun Mohd Saad","orcid":"https://orcid.org/0000-0001-7506-236X","observed_orcids":["https://orcid.org/0000-0001-7506-236X"]},"institutions":[{"id":"https://openalex.org/I79156528","display_name":"Universiti Tenaga Nasional","ror":"https://ror.org/03kxdn807","country_code":"MY","type":"education","lineage":["https://openalex.org/I79156528","https://openalex.org/I874769580"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"N M Saad","raw_affiliation_strings":["College of Computing & Informatics, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computing & Informatics, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia","institution_ids":["https://openalex.org/I79156528"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I79156528"],"apc_list":null,"apc_paid":null,"fwci":4.8157,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.95806611,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"708","issue":"1","first_page":"012038","last_page":"012038"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10698","display_name":"Transportation Planning and Optimization","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T10698","display_name":"Transportation Planning and Optimization","score":0.9990000128746033,"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/T13601","display_name":"Urban Transport Systems Analysis","score":0.00039999998989515007,"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"}},{"id":"https://openalex.org/T11942","display_name":"Transportation and Mobility Innovations","score":9.999999747378752e-05,"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/bus-service-quality","display_name":"bus service quality","score":0.9890000224113464},{"id":"https://openalex.org/keywords/bus-transit","display_name":"bus transit","score":0.6000000238418579},{"id":"https://openalex.org/keywords/alor-setar","display_name":"Alor Setar","score":0.925000011920929},{"id":"https://openalex.org/keywords/service-frequency","display_name":"service frequency","score":0.6420000195503235},{"id":"https://openalex.org/keywords/hours-of-service","display_name":"hours of service","score":0.871999979019165},{"id":"https://openalex.org/keywords/passenger-load-factor","display_name":"passenger load factor","score":0.9879999756813049},{"id":"https://openalex.org/keywords/on-time-performance","display_name":"on-time performance","score":0.9950000047683716},{"id":"https://openalex.org/keywords/traffic-congestion","display_name":"traffic congestion","score":0.8180000185966492}],"concepts":[{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.6309114694595337},{"id":"https://openalex.org/C140781008","wikidata":"https://www.wikidata.org/wiki/Q1221081","display_name":"Service quality","level":3,"score":0.6019955277442932},{"id":"https://openalex.org/C539828613","wikidata":"https://www.wikidata.org/wiki/Q178512","display_name":"Public transport","level":2,"score":0.5590577721595764},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.5189066529273987},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.5165085196495056},{"id":"https://openalex.org/C22212356","wikidata":"https://www.wikidata.org/wiki/Q775325","display_name":"Transport engineering","level":1,"score":0.4797748029232025},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.46169599890708923},{"id":"https://openalex.org/C135510737","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Performance indicator","level":2,"score":0.44207850098609924},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.30551135540008545},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.27691179513931274},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2046242356300354},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20002368092536926},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1088/1755-1315/708/1/012038","doi":"https://doi.org/10.1088/1755-1315/708/1/012038","is_oa":true,"landing_page_url":"https://doi.org/10.1088/1755-1315/708/1/012038","pdf_url":"https://iopscience.iop.org/article/10.1088/1755-1315/708/1/012038/pdf","source":{"id":"https://openalex.org/S4210195883","display_name":"IOP Conference Series Earth and Environmental Science","issn_l":"1755-1315","issn":["1755-1315","1755-1307"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IOP Conference Series: Earth and Environmental Science","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1088/1755-1315/708/1/012038","doi":"https://doi.org/10.1088/1755-1315/708/1/012038","is_oa":true,"landing_page_url":"https://doi.org/10.1088/1755-1315/708/1/012038","pdf_url":"https://iopscience.iop.org/article/10.1088/1755-1315/708/1/012038/pdf","source":{"id":"https://openalex.org/S4210195883","display_name":"IOP Conference Series Earth and Environmental Science","issn_l":"1755-1315","issn":["1755-1315","1755-1307"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IOP Conference Series: Earth and Environmental Science","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11","score":1.0},{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.8970999717712402}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320319061","display_name":"Tenaga Nasional Berhad","ror":"https://ror.org/04jjxmt88"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3159928485.pdf","grobid_xml":"https://content.openalex.org/works/W3159928485.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W169244755","https://openalex.org/W1534356289","https://openalex.org/W1895624277","https://openalex.org/W1963972441","https://openalex.org/W1979752264","https://openalex.org/W1980482122","https://openalex.org/W2015602195","https://openalex.org/W2025155910","https://openalex.org/W2073345837","https://openalex.org/W2110125770","https://openalex.org/W2187916824","https://openalex.org/W2230907677","https://openalex.org/W2743162223","https://openalex.org/W2752911221","https://openalex.org/W2794381348","https://openalex.org/W2903998127","https://openalex.org/W2992307896","https://openalex.org/W4285719527","https://openalex.org/W6687052153"],"related_works":["https://openalex.org/W4212814937","https://openalex.org/W2886797904","https://openalex.org/W3158146848","https://openalex.org/W4313340728","https://openalex.org/W4409482535","https://openalex.org/W4214613648","https://openalex.org/W7202038760","https://openalex.org/W4214554336","https://openalex.org/W3134444212","https://openalex.org/W4367299906"],"abstract_inverted_index":{"Abstract":[0],"Traffic":[1],"congestion":[2],"is":[3,75,106,244,255],"one":[4,28],"of":[5,73,112,142,161,183,186,208,215,238,258,276,284],"the":[6,10,65,71,109,158,194,227,274,282,291],"issues":[7,259],"raised":[8],"as":[9,20,51,53,80,99,149,179,205,223,232,246,251,253],"development":[11],"and":[12,49,62,101,140,153,217,289],"urbanization":[13],"moving":[14],"forward.":[15],"Bus":[16],"services":[17,35,97,216],"still":[18],"considered":[19],"an":[21],"public":[22,83],"transport":[23,84],"option":[24],"to":[25,30,77,107,156,272,287],"move":[26],"from":[27],"location":[29],"another.":[31],"Since":[32],"1957,":[33],"bus":[34,113,162,295],"have":[36,129],"been":[37,130,147],"a":[38,43,92,150,256],"primary":[39],"selection":[40],"not":[41],"just":[42],"big":[44],"cities":[45,87],"like":[46,57],"Kuala":[47],"Lumpur":[48],"Georgetown":[50],"well":[52],"small":[54,86],"town":[55],"in":[56,85,88,115,123,164,175,210,240],"Alor":[58,116,136,241],"Setar,":[59,117,242],"Kota":[60],"Bahru":[61],"others.":[63],"As":[64],"demand":[66],"increase":[67,273],"year":[68],"by":[69],"year,":[70],"quality":[72,111,127,159,207,237,275],"service":[74,110,160,180,209,228,239,296],"expected":[76],"be":[78,173,261,270],"improved":[79],"well.":[81],"Recently,":[82],"Malaysia":[89],"also":[90,279],"faced":[91],"huge":[93],"competition":[94],"with":[95],"E-hailing":[96],"such":[98,178],"Grab":[100],"MyCar.":[102],"Therefore,":[103],"these":[104,176,211,266,285,298],"paper":[105],"determine":[108,157,288],"performance":[114,163,220],"Kedah.":[118],"These":[119],"studies":[120,177,286],"were":[121,168,221],"conducted":[122],"April":[124],"2019.":[125],"Service":[126,143],"data":[128],"taken":[131],"at":[132],"Terminal":[133],"Shahab":[134],"Perdana,":[135],"Setar.":[137],"Transit":[138],"Capacity":[139],"Quality":[141],"Manual":[144],"(TCRPM)":[145],"has":[146,203],"stated":[148],"specific":[151,170],"guidelines":[152],"key":[154],"indicators":[155],"designated":[165],"area.":[166],"There":[167],"four":[169],"areas":[171],"would":[172],"focused":[174],"frequency,":[181],"hours":[182,214],"service,":[184],"factors":[185],"passenger":[187,200],"load,":[188],"on":[189,193,218,265,297],"time":[190,219],"performance.":[191],"Based":[192],"results,":[195],"it":[196],"shows":[197],"that":[198],"only":[199],"load":[201],"factor":[202],"classified":[204,222,231,245],"A":[206],"studies.":[212],"The":[213,235],"Class":[224,233,247],"D":[225,248],"while":[226],"frequency":[229],"was":[230],"F.":[234],"overall":[236],"Kedah":[243],"which":[249],"consider":[250],"moderate":[252],"there":[254],"lot":[257],"should":[260,269],"addressed.":[262],"Some":[263],"improvement":[264],"three":[267],"attributes":[268],"made":[271],"service.":[277],"Authorities":[278],"could":[280],"use":[281],"outcome":[283],"identifies":[290],"significant":[292],"improvements":[293],"for":[294],"areas.":[299]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2021-05-10T00:00:00"}
