RESEARCH ARTICLE Strategies for Selecting Routes through Real- World Environments: Relative Topography, Initial Route Straightness, and Cardinal Direction Tad T. Brunyé1,2*, Zachary A. Collier3, Julie Cantelon1,2, Amanda Holmes1,2, Matthew D. Wood3, Igor Linkov3, Holly A. Taylor2 a11111 1 U.S. Army Natick Soldier Research, Development and Engineering Center, Natick, Massachusetts, United States of America, 2 Tufts University, Department of Psychology, Medford, Massachusetts, United States of America, 3 U.S. Army Engineer Research and Development Center, Vicksburg, Mississippi, United States of America *
[email protected] OPEN ACCESS Abstract Citation: Brunyé TT, Collier ZA, Cantelon J, Holmes A, Wood MD, Linkov I, et al. (2015) Strategies for Previous research has demonstrated that route planners use several reliable strategies for Selecting Routes through Real-World Environments: selecting between alternate routes. Strategies include selecting straight rather than winding Relative Topography, Initial Route Straightness, and routes leaving an origin, selecting generally south- rather than north-going routes, and se- Cardinal Direction. PLoS ONE 10(5): e0124404. doi:10.1371/journal.pone.0124404 lecting routes that avoid traversal of complex topography. The contribution of this paper is characterizing the relative influence and potential interactions of these strategies. We also Academic Editor: Markus Lappe, University of Muenster, GERMANY examine whether individual differences would predict any strategy reliance. Results showed evidence for independent and additive influences of all three strategies, with a strong influ- Received: January 2, 2015 ence of topography and initial segment straightness, and relatively weak influence of cardi- Accepted: March 13, 2015 nal direction. Additively, routes were also disproportionately selected when they traversed Published: May 20, 2015 relatively flat regions, had relatively straight initial segments, and went generally south rath- Copyright: This is an open access article, free of all er than north.