Computing travel time when the exact address is unknown: a comparison of point and polygon ZIP code approximation methods

• Published in: International journal of health geographics Vol. 8; no. 1; p. 23
• Main Authors: Berke, Ethan M, Shi, Xun
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 29.04.2009; BioMed Central; BMC
• Subjects: Arizona; Cancer Care Facilities; Data Interpretation, Statistical; Health aspects; Health Services Accessibility; Humans; Management; Measurement; Methodology; Methods; New Hampshire; Time Factors; Transport of sick and wounded; Travel; Travel time (Traffic engineering); Zip code; Arizona; New Hampshire; United States

Travel time is an important metric of geographic access to health care. We compared strategies of estimating travel times when only subject ZIP code data were available. Using simulated data from New Hampshire and Arizona, we estimated travel times to nearest cancer centers by using: 1) geometric ce...