Questions tagged [cost-surface]

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Calculating accumulated walking pace from starting location outwards using R?

Goal In R, I would like to calculate an accumulated cost surface around a starting location, with the cost representing the time (say, hours) to walk from the location outwards in all directions (say,...
162 views

Working out travel time from gdistance's conductance values in R?

Introduction This question is indirectly related to a previous post of mine (Calculating accumulated walking pace from starting location outwards using R?), but asks guidance about a different aspect,...
104 views

Cost raster/friction map and data extraction

I am in an early stage of least cost paths analysis of a wide area. One part of the operation includes simulation of movement across the grid of previously agreed size of cells and extent of the grid (...
68 views

Integrating use of surface distance when calculating cumulative cost-surface based on walking pace?

Disclaimer This question is somewhat related to a number of earlier questions of mine: Accumulated cost surface (Tobler's hiking function) ignoring slope using R gdistance?; Calculating ...
30 views

Assure the continuation of rivers (raster dataset)

I am creating a cost surface raster for identifying least cost paths for road constructions. One of the factors influencing the cost is water cover. I am using Landsat based Global Surface Water ...
253 views

Accumulated cost surface (Tobler's hiking function) ignoring slope using R gdistance?

Background I wish to calculate in R the isochrones moving from a location outwards, implementing the Tobler's hiking function via the gdistance package (https://cran.r-project.org/web/packages/...
15 views

Create distinct raster layers from ArcGIS Server Map

My original objective is to find the least cost path between two points. I am planning to do it with the "Cost Path" function of ArcGIS. Therefore, I have to construct a cost surface map for ...
20 views

Combining cost analysis and voronoi-like area interpolation regarding slopes

I have DEM raster data of an island and I have 10 points (cities). My task is to map the island into areas. Inside these areas everything must be nearest to the corresponding city/point, and each ...
16 views

Making Cost Surface Distance map?

Projection is in NAD 83- units of measure in meters. I have major roads NC vector data overlaid on Forsyth county in North Carolina. I would like to create a cost surface distance map using this ...
20 views

Running Cost Paths with Overlapping Points?

I am running cost paths on a data set with 60k points which represent farms. About a third of these points have the exact same coordinate (points can often represent village centers where the farm ...
63 views

Cost distance tool to figure out shortest distance over water between 2 points

I have multiple points in a bay and I need to figure out the distance of each point to the nearest inlet, without going over land. I have been told to use the Cost Path or the Cost Distance tool but ...