{"title":"芝加哥乘客选择优步和Lyft而不是公交意味着出行时间的盈亏平衡值中值等于该地区每小时30美元的时薪","authors":"Miki Tsuchiya, Anna Cobb, Parth Vaishnav","doi":"10.1021/acs.est.4c08808","DOIUrl":null,"url":null,"abstract":"The use of transportation network companies (TNCs), such as Uber and Lyft, is widespread in many US cities, including those with good transit. However, transit use produces smaller externalities relative to private vehicles and is cheaper but can increase travel time. Here we compare the benefits and costs of real TNC trips in Chicago to a counterfactual in which they are performed by transit. We assess total fare and monetized value of travel time, as well as externalities. We find that the median breakeven value of time at which a rider would be indifferent between transit and a TNC, $34/hour (interquartile range: $21–60), is almost exactly equal to the regional median wage, which in turn is a metric that is commonly used to value travel time for business purposes. Internalizing externalities would require riders to value their time at $37/hour ($22–64). Transit use and electrification of TNC gasoline vehicles could reduce air emissions externalities to a similar extent assuming current transit load factors. Half of transit trips’ duration consists of walking and waiting; policies that reduce walking and waiting would make transit more attractive.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"122 1","pages":""},"PeriodicalIF":11.3000,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Chicago Riders’ Choice of Uber and Lyft over Transit Implies a Median Breakeven Value of Travel Time Equal to the Regional Hourly Wage of $30 per Hour\",\"authors\":\"Miki Tsuchiya, Anna Cobb, Parth Vaishnav\",\"doi\":\"10.1021/acs.est.4c08808\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The use of transportation network companies (TNCs), such as Uber and Lyft, is widespread in many US cities, including those with good transit. However, transit use produces smaller externalities relative to private vehicles and is cheaper but can increase travel time. Here we compare the benefits and costs of real TNC trips in Chicago to a counterfactual in which they are performed by transit. We assess total fare and monetized value of travel time, as well as externalities. We find that the median breakeven value of time at which a rider would be indifferent between transit and a TNC, $34/hour (interquartile range: $21–60), is almost exactly equal to the regional median wage, which in turn is a metric that is commonly used to value travel time for business purposes. Internalizing externalities would require riders to value their time at $37/hour ($22–64). Transit use and electrification of TNC gasoline vehicles could reduce air emissions externalities to a similar extent assuming current transit load factors. Half of transit trips’ duration consists of walking and waiting; policies that reduce walking and waiting would make transit more attractive.\",\"PeriodicalId\":36,\"journal\":{\"name\":\"环境科学与技术\",\"volume\":\"122 1\",\"pages\":\"\"},\"PeriodicalIF\":11.3000,\"publicationDate\":\"2025-01-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"环境科学与技术\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.est.4c08808\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"环境科学与技术","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.est.4c08808","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Chicago Riders’ Choice of Uber and Lyft over Transit Implies a Median Breakeven Value of Travel Time Equal to the Regional Hourly Wage of $30 per Hour
The use of transportation network companies (TNCs), such as Uber and Lyft, is widespread in many US cities, including those with good transit. However, transit use produces smaller externalities relative to private vehicles and is cheaper but can increase travel time. Here we compare the benefits and costs of real TNC trips in Chicago to a counterfactual in which they are performed by transit. We assess total fare and monetized value of travel time, as well as externalities. We find that the median breakeven value of time at which a rider would be indifferent between transit and a TNC, $34/hour (interquartile range: $21–60), is almost exactly equal to the regional median wage, which in turn is a metric that is commonly used to value travel time for business purposes. Internalizing externalities would require riders to value their time at $37/hour ($22–64). Transit use and electrification of TNC gasoline vehicles could reduce air emissions externalities to a similar extent assuming current transit load factors. Half of transit trips’ duration consists of walking and waiting; policies that reduce walking and waiting would make transit more attractive.
期刊介绍:
Environmental Science & Technology (ES&T) is a co-sponsored academic and technical magazine by the Hubei Provincial Environmental Protection Bureau and the Hubei Provincial Academy of Environmental Sciences.
Environmental Science & Technology (ES&T) holds the status of Chinese core journals, scientific papers source journals of China, Chinese Science Citation Database source journals, and Chinese Academic Journal Comprehensive Evaluation Database source journals. This publication focuses on the academic field of environmental protection, featuring articles related to environmental protection and technical advancements.