{"id":"https://openalex.org/W1991868807","doi":"https://doi.org/10.1016/0166-218x(94)90217-8","title":"On the optimal strongly connected orientations of city street graphs IV: Four east-west avenues or north-south streets","display_name":"On the optimal strongly connected orientations of city street graphs IV: Four east-west avenues or north-south streets","publication_year":1994,"publication_date":"1994-03-01","ids":{"openalex":"https://openalex.org/W1991868807","doi":"https://doi.org/10.1016/0166-218x(94)90217-8","mag":"1991868807"},"language":"en","primary_location":{"id":"doi:10.1016/0166-218x(94)90217-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0166-218x(94)90217-8","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Discrete Applied Mathematics","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/A5077527733","display_name":"Fred S. Roberts","orcid":"https://orcid.org/0000-0001-8421-4759"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Fred S. Roberts","raw_affiliation_strings":["Department of Mathematics and Center for Operations Research, Rutgers University, New Brunswick, NJ 08903, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics and Center for Operations Research, Rutgers University, New Brunswick, NJ 08903, USA","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006391754","display_name":"Yonghua Xu","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110794","display_name":"Taiyuan Heavy Industry (China)","ror":"https://ror.org/022vzex26","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210110794"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yonghua Xu","raw_affiliation_strings":["Taiyuan Heavy Machinery Institute, Taiyuan, Shanxi Province, People's Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Taiyuan Heavy Machinery Institute, Taiyuan, Shanxi Province, People's Republic of China","institution_ids":["https://openalex.org/I4210110794"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5077527733"],"corresponding_institution_ids":["https://openalex.org/I102322142"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":0.7789,"has_fulltext":false,"cited_by_count":28,"citation_normalized_percentile":{"value":0.68477484,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"49","issue":"1-3","first_page":"331","last_page":"356"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9947999715805054,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12546","display_name":"Smart Parking Systems Research","score":0.9914000034332275,"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/grid","display_name":"Grid","score":0.6127779483795166},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5091552138328552},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.5020143985748291},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.4927091896533966},{"id":"https://openalex.org/keywords/grid-cell","display_name":"Grid cell","score":0.45429128408432007},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.15109369158744812}],"concepts":[{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.6127779483795166},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5091552138328552},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.5020143985748291},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.4927091896533966},{"id":"https://openalex.org/C2983008078","wikidata":"https://www.wikidata.org/wiki/Q863495","display_name":"Grid cell","level":3,"score":0.45429128408432007},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.15109369158744812}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0166-218x(94)90217-8","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0166-218x(94)90217-8","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Discrete Applied Mathematics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8600000143051147,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320338279","display_name":"Air Force Office of Scientific Research","ror":"https://ror.org/011e9bt93"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1513353427","https://openalex.org/W2000631615","https://openalex.org/W2018407494","https://openalex.org/W2052186517","https://openalex.org/W2058557216","https://openalex.org/W2076461794","https://openalex.org/W2114509432","https://openalex.org/W2141903258","https://openalex.org/W2312865100","https://openalex.org/W2335132016","https://openalex.org/W4235394975","https://openalex.org/W4236077582","https://openalex.org/W6630628031"],"related_works":["https://openalex.org/W2771645251","https://openalex.org/W2752705196","https://openalex.org/W3104253173","https://openalex.org/W2374466665","https://openalex.org/W4221166686","https://openalex.org/W2968032748","https://openalex.org/W4237982339","https://openalex.org/W4243821204","https://openalex.org/W2003502288","https://openalex.org/W4384692478"],"abstract_inverted_index":null,"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}