@article{ref1,
title="A two-step approach to planning new facilities towards equal accessibility",
journal="Environment and planning. B, urban analytics and city science",
year="2017",
author="Li, Xiang and Wang, Fahui and Yi, Hong",
volume="44",
number="6",
pages="994-1011",
abstract="A recent advancement in location-allocation modeling proposes a new objective of minimizing inequality of accessibility. Existing work considers the planning problem as either selecting new sites or adjusting facility capacities, separately. This paper develops a two-step hybrid approach to the problem by optimizing both locations and capacities of facilities towards equal accessibility. A genetic algorithm is first employed to find the best locations to site new facilities, and then a quadratic programming method is used to determine the best capacity of each facility within a pre-defined range. The sequence is consistent with many decision-making practices. <br><br>RESULTS of a series of experiments demonstrate that location optimization reduces inequality in accessibility more significantly than capacity optimization. The two-step optimization method can be applied for sequential allocation decision-makings towards maximum equal accessibility.<p /> <p>Language: en</p>",
language="en",
issn="2399-8083",
doi="10.1177/0265813516657083",
url="http://dx.doi.org/10.1177/0265813516657083"
}