title: Ambient air conditions and variation in urban trail use.
abstract: This study examines the effect of air quality and administrative policies on use of urban trails in Indianapolis, IN. Attention is focused on two policy variables: (1) issuance of air pollution advisories and (2) the adoption of Daylight Savings Time. Results suggest that while trail use varies with air quality, current public advisories regarding air pollution may be of limited effectiveness in reducing trail users' exposures to hazardous pollutants. In contrast, the adoption of Daylight Savings Time was associated with a statistically significant increase in traffic levels.
authors.affiliation: Center for Health Policy, School of Public and Environmental Affairs, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA. aholmes@iupui.edu
authors.forename: Ann M
authors.initials: AM
authors.lastname: Holmes
authors.forename: Greg
authors.initials: G
authors.lastname: Lindsey
authors.forename: Chenchen
authors.initials: C
authors.lastname: Qiu
mesh_terms: D000397:Air Pollution; D002947:Cities; D004781:Environmental Exposure; D006801:Humans; D007196:Indiana; D011634:Public Health; D011640:Public Policy; D013997:Time Factors; D014505:Urban Population; D016138:Walking / Q000706:statistics & numerical data*; D014887:Weather