{"title":"限速的反经济学","authors":"Hak Choi","doi":"10.2139/ssrn.2352230","DOIUrl":null,"url":null,"abstract":"Speed limit is imposed for some purposes: oil saving and safety, for example. This paper proves that none is justified. Speed limit reduces road capacity, or equivalently stated more roads are needed for the same traffic flow. This paper shows how traffic economists have misunderstood the traffic flow curve, and that some even have mistook it as a supply curve.","PeriodicalId":432405,"journal":{"name":"Transportation Science eJournal","volume":"38 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The Dis-Economics of Speed Limit\",\"authors\":\"Hak Choi\",\"doi\":\"10.2139/ssrn.2352230\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Speed limit is imposed for some purposes: oil saving and safety, for example. This paper proves that none is justified. Speed limit reduces road capacity, or equivalently stated more roads are needed for the same traffic flow. This paper shows how traffic economists have misunderstood the traffic flow curve, and that some even have mistook it as a supply curve.\",\"PeriodicalId\":432405,\"journal\":{\"name\":\"Transportation Science eJournal\",\"volume\":\"38 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-11-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transportation Science eJournal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.2352230\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transportation Science eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.2352230","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Speed limit is imposed for some purposes: oil saving and safety, for example. This paper proves that none is justified. Speed limit reduces road capacity, or equivalently stated more roads are needed for the same traffic flow. This paper shows how traffic economists have misunderstood the traffic flow curve, and that some even have mistook it as a supply curve.