Generation of stochastic mobility maps for large-scale route planning of ground vehicles: A case study. (February 2017)

• Record Type: Journal Article
• Authors: Gonzalez, Ramon; Jayakumar, Paramsothy; Iagnemma, Karl
• Is Part Of: Journal of terramechanics. Volume 69(2017:Feb.)
• Page Start: 1
• Page End: 11
• Publication Date: 2017-02
• Subjects: Stochastic conditional simulation -- Geographical Information System (GIS) -- Next-Generation NATO Reference Mobility Model (NG-NRMM) -- Digital Elevation Model (DEM) -- Soil moisture; Trafficability -- Periodicals; Praticabilité (Routes) -- Périodiques; Trafficability; Periodicals; 629.222
• DOI: 10.1016/j.jterra.2016.10.001
• Languages: English
• ISSNs: 0022-4898

Abstract

Highlights: Simple and efficient methodology to generate a mobility map. General-purpose solution that works with publicly-available DEMs. Analysis of the number of random realizations. Efficient computation time. Route planning using the stochastic mobility map. Abstract: This paper describes a simple and efficient methodology to generate a mobility map accounting for two sources of uncertainty, namely measurement errors (RMSE of a Digital Elevation Model) and interpolation error (kriging method). The proposed methodology means a general-purpose solution since it works with standard and publicly-available Digital Elevation Models (DEMs). The different regions in the map are classified according to the geometry of the surface (i.e. slope) and the soil type. A real USGS DEM demonstrates the suitability of the proposed methodology: (1) interpolation of a 26 × 40 -km 2 DEM to a finer resolution (30-m to 20-m); (2) analysis of the number of random realizations to account for the variability of the data; (3) efficient computation time (4-million-point DEM requires less than 30 min to complete the whole process); (4) route planning using the stochastic mobility map (constraints in slope and soil properties).UNCLASSIFIED: Distribution Statement A. Approved for public release; distribution is unlimited. #27681