Fig. 1
From: Does the edge effect impact on the measure of spatial accessibility to healthcare providers?
Definition of “patient area” when including and excluding offer and demand outside. Focus on the IRIS named “Fournes-en-Weppes”- (IRIS no. 592 500 000), the Nord department are circled in blue, whereas neighboring IRIS from the three departments of Somme, Aisne and Pas-de-Calais are yellow. a) without consideration of offer and demand beyond the boundary; b) with consideration of offer and demand beyond the boundary