The effects of ozone action day public advisories on train ridership in Chicago

Eric Welch, Xiaohua Gu, Lisa Kramer

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Ground level ozone is a criteria pollutant that is significantly affected by transportation patterns. Ozone action day advisories represent one type of voluntary ozone-abating program operating in urban areas where ozone pollution is concentrated. When forecasts predict that ground level ozone will exceed healthy levels, public advisories urge citizens to voluntarily choose public transportation as a means of eliminating automobile trips and reducing mobile emissions. To obtain credit for emission reductions spurred by voluntary programs, states must provide verifiable reduction estimates. This paper applies a fixed effects regression model to a panel of hourly Chicago Transit Authority train ridership data to evaluate the potential effects of Ozone Action Day advisories in Chicago from 2002 to 2003. Findings show that while the overall effect of ozone action days on ridership is not significant, there are statistically significant changes in hourly ridership patterns that indicate a more complex relationship between the public advisories and travel behavior.

Original languageEnglish (US)
Pages (from-to)445-458
Number of pages14
JournalTransportation Research Part D: Transport and Environment
Volume10
Issue number6
DOIs
StatePublished - Nov 2005
Externally publishedYes

Fingerprint

Ozone
train
ozone
transit authority
public transportation
travel behavior
pollutant
motor vehicle
credit
urban area
citizen
regression
public
effect
Automobiles
automobile
Pollution
pollution

Keywords

  • Ozone
  • Public campaign
  • Transit choice
  • Voluntary policy

ASJC Scopus subject areas

  • Environmental Science(all)
  • Transportation

Cite this

The effects of ozone action day public advisories on train ridership in Chicago. / Welch, Eric; Gu, Xiaohua; Kramer, Lisa.

In: Transportation Research Part D: Transport and Environment, Vol. 10, No. 6, 11.2005, p. 445-458.

Research output: Contribution to journalArticle

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