In the current political climate of evidence-based research, GIS has emerged as
a powerful research tool as it allows spatial and social health inequality to be
explored efficiently. This article explores the impact health reforms had on
geographical accessibility to hospital emergency department (ED) services in New
Zealand from 1991 to 2001. Travel time was calculated using least-cost path
analysis, which identified the shortest travel time from each census enumeration
district through a road network to the nearest ED. This research found that the
population further than 60 minutes from an ED has increased with some areas
being affected more than others. Some of this increase is attributed to
increases in population rather than the closing of hospitals. The findings will
be discussed within the context of the health policy reform era and changes to
health service provision.