Questions tagged [road]
A road is a thoroughfare, route, or way on land between two places.
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Learning How to Use Road Network Files
I am interested in learning how to work with Road Network Files in R.
For example, I would be interested in finding out the driving distance between the following two (Canadian) addresses:
CN Tower: ...
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Probability of occurrence on route based on probabilities of occurrence on individual links [closed]
I am stuck in one problem and don't know how to approach it. So, let's say I've got a linear (road) segment consisting of individual links (see attached image). I know the probabilities of a certain ...
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Identifying international crossings in OSM
I would like to identify international crossings between Italy and Austria in OSM, regardless the type of road.
Is there a way to identify such points using QuickOSM or should I do it manually, using ...
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Sorting out OSMNX road classes
I have been working with OSMNX in the past recent days, and I've come across an issue, whose solution I cant seem to find.
Is there a way to sort this out so as to resolve the roads with more than ...
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Cutsom ST_Multisplit function returning more than one split line. How to only return one line split at various points?
I Have a modified version of the function from How to ST_Split features in one table by features in another?
CREATE OR REPLACE FUNCTION ST_Multi Split(geom Geometry, blades Geometry) RETURNS Geometry ...
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Building roads on steep slopes with QGIS [closed]
I work in forestry and want to get QGIS to generate a vector line that doesn´t exceed a certain road slope. I can get it to tell me what the slope is on a road I draw myself, but how can I just insert ...
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Road Emission Calculator - QGIS plugin
I managed to install the Road Emission Calculator plugin in earlier version of QGIS. Unfortunately, it's not showing me results.
Had anyone tried this plugin?
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QGIS - Link all the road/ line
Is there any fast way to join/ link up all the road lines to other lines in QGIS?
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QGIS - Shortest Path (Layer to Layer)?
I have 2 data sets that I need to measure the distance between using road lines:
In this example I want to connect the red points to their nearest blue point.
Whilst this is easily done with a single ...
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How extract road data using coordinates from OSM
I'm trying to extract the type of road from a coordinate (lat& lon). I've found the package osmnx to get some useful data, however, it gives me information from an area instead of a given position ...
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QGIS Geometry Generator make_line using road network
I want in QGIS 3.22 Geometry Generator to connect related points with a line, but the line must go between the points along the shortest network of paths.
I have two layers:
one is "points" ...
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How do I ignore artificial landscape (e.g., pavement, cars, buildings) in order to classify features of the natural landscape (e.g., veg cover, soil)? [closed]
I want to classify the landscape into different classes, in order to identify areas with low veg cover and bare soil. Unfortunately, any of the classification tools I use will recognize pavement, cars,...
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Select values from noise contours across one road stretch
I have a map of noise contours across a city and am using ArcGIS Pro.
I want to select one road (not straight) and export the noise values along that road to a table but I'm having trouble selecting ...
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Select values of noise contours along one road
I have a map of noise contours across a city and am using ArcGIS Pro.
I want to select one road (not straight) and export the noise values along that road to a table but I'm having trouble selecting ...
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PgRouting Create network isn't splitting on intersections
I've started working with PgRouting, I have a custom road networks inside of a linestring geometry table.
I'm currently trying to create a Network for routing, the 70% of the routes are right, but ...
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Reclassify raster based on the width of same value neighboring cells
I have a binary raster that indicates the presence and absence of roads.
What I want is to classify the roads in at least two categories (width=16pixels (the horizontal road in the example) and width =...
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Seeking ArcGIS Pro tool that calculates distance from different points to another feature class with multiple distance along road network
Is there a specific tool that calculates the distance from points feature class to another points feature class?
I have a data set containing forest compartments (point), customer destination (point), ...
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Merging all lines with only one connecting line in QGIS
I have a line layer consisting of road links. Some of these are connected to the next link only through one node (not in an intersection). I'd like to get rid of these non-intersection line breaks and ...
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Finding distance and attributes from one feature to another?
My goal is to have a final parcel layer include fields containing road name and distance to the nearest road segment. I'm using ArcMap and tried running the Near tool but it only returns distances.
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Distance along line network between set of points to set of hubs
I am trying to measure distance between towns (light grey in attached screenshot) and their district capitals (light purple) along usable roads (dashed blue). I used the GRASS v.distance plugin to ...
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How to keep roadnetwork attributes by cutting it to a service area in QGIS?
I extracted a road network including attributes (e.g., categorization of different types of highways) using QuickOSM.
My goal is to cut this original road network to a 50km drivable radius from a ...
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Route direction based on road width?
I have road polyline data that contains a road width field (in meters) and I want to visualize road direction, based on this road width field.
The road direction that I mean is kind of like this:
(...
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Editing a WMS layer
For a school project, I'd like to represent the public transport network of our city (using QGIS). I found a WMS layer from an official source, but some bus lines are missing, and others don't exist ...
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Buffering roads leads to one big circle in QGIS
I am trying to create buffers around specific roads I am working with. I carried out the following steps:
I highlighted all of the roads:
I set out to create a buffer zone.
The buffer was created.
...
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Representing roads consisting of polylines as polygons in QGIS
I am working with some roads in London that I downloaded online. The roads are represented as lines like below:
How can I transform each road from a line into a polygon in QGIS? So that the roads ...
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Extract nodes and edges as road network from osm.pbf file with python
I have downloaded the israël's osm.pbf file from geofabrik. I want to extract the road network's country, which means a list of edges between two nodes ids. For a such tiny country, this list should ...
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Adding minimum margin between roads in QGIS
I'm wondering if there's a way to add a minimum space between roads that are too close together in a map. Accuracy is not my goal, I just want to make it visually as clear and clean as possible. Could ...
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Identifying road intersections in QGIS [closed]
I'm currently in a project where I need to identify whether the road exist in an intersection or not. However there are 700 roads which is a hassle if I do it manually. Is it possible to identify ...
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MultiPolygonZ to nearest line using a road network (or: how far is the next highway from a project site?)
I have a MultiPolygonZ layer of Project Sites (ca. 700 features, mostly 1 polygon per feature) and want to get the shortest distance on a road network to the nearest subset of a line layer, e.g. the ...
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How to use SDO_LRS.OFFSET_GEOM_SEGMENT to offset a line in Oracle Spatial
I am trying to offset a line perpendicularly by a few metres (it follows a road and I'd like to move it to one side of the road). The line is an SDO_GEOMETRY object of SDO_GTYPE = 2002 (LINE/CURVE).
I ...
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Merging highways with two strokes into single path using QGIS
In QGIS some of my vector layers (shapefiles) for roads have two paths. For highways, I assume this is for divided lanes, but I only want a single path to make it easier to style in Illustrator.
How ...
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Labelling minor and major streets for entire city on layout using ArcMap
I've been trying to create an ArcMap layout which shows intersections in a given city alongside the names of minor and major streets. Currently, I have the intersections properly placed and I have a ...
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sDNA - cycle model based on start and end elevations rather than 3d shapefile
I want to run a cycle roundtrip model in sDNA. My file is a road center line (RCL) map, containing z coordinates (start Z, end Z - image attached).
The RCL vector file is shown by GRASS GIS as 3D, but ...
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Road network division and best maintenance facility location using ArcMap
I am using ArcMap.
I have a national road network and I would like to divide it in several zones, so each zone would get the same amount of roads (from 150 to 250 km) - to get as equal zones as ...
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Roads randomly segmented
I've encountered a problem I'd like to fix. I have two shapefiles that are in essentially the same spot. (Road Centerlines)
We had a company run an analysis of the road quality. When they gave us the ...
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How to batch calculate vector layer road lengths in QGIS?
I'm trying to calculate the road length for hundreds of layers, each one being a small road vector layer. I usually follow the process at
https://www.qgistutorials.com/en/docs/calculating_line_lengths....
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How to do pgr_analyzeoneway pgrouting
I try to do pgr_analyzeoneway to my network road data from OSM.
But there's some parameter that I don't know what I should input event though already read the example:
s_in_rules: text[] source node ...
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Calculating road travel distance between point and polygon layers [closed]
I am trying to calculate the top three shortest distances from a point file (buildings) to a polygon file (designated natural areas) via road networks. I basically need the "Join attribute by ...
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Automated extraction of road network from points
I have a huge dataset containing about zillion of points representing tracking locations of cars on the roads.
I also have roads datasets to compare to (from 3 different sources), to use for training ...
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R dangerous streets: match routes and crashes
This is my first attempt with mapping in R.
I have posted my question also in openTransportDataDemo github
and I copy it here to hopefully gain broader attention:
My goal is to find the roads where ...
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Obtaining road information from route
I need to obtain information (road surface typology, max speed limit etc.) on all the roads that make my route, from A to B.
The inputs of my problem will be waypoints, obtained by GPS coordinates.
I ...
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Flooded roads and deprived communities: QGIS route analysis function to avoid flooded roads?
In QGIS I am analysing the flooding of road networks. I have created a vector line layer of all the stretches of roads in my study area where high risk flood extent areas intersect them. I now want to ...
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Clipping with Voronoi polygon using QGIS
I'm trying to clip a road network (polyline) with Voronoi polygons. The polyline don't clip but I don't know why. I try to separate my road network according to geographical points collected in the ...
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Creating Road Edge of Pavements from Road Centerlines Data using QGIS
Creating Road Edge of Pavements from Road Centerlines using QGIS
I have a Road Centerline data set and would like to use it to create a Road Edge Of Pavements data set that I could then export to a ...
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Mapping polygons into lines and projecting lines on road network
I have a layer with polygons that describe road damages. I have then another layer with road network lines. The layers are shown in the picture.
I need to project the polygons as lines to the road ...
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Road density calculation
I have a vector layer of about 62km^2. I have a vector layer of roads within that area. How do I calculate the road density (km/km2)? I did a union between the road layer and the area layer, then I ...
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Converting a Road shp file into a continous Road Raster in QGIS?
I have converted a Road shp file into a Raster in QGIS, however after the conversion the Road is no longer continous (i.e only the cell corners are touching). I have tried increasing the resolution ...
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Feeding direction of the road segments in QNEAT3 plugin
I am going to use the Iso-Area algorithm of the QNEAT3 plugin to generate Isochrones. I need to determine which parts of the road network are one-way and which parts are two-way. In the way that for ...
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Seeking incline of roads data
I need to plot the incline of roads in England. I could estimate this using elevation data, however this would be a significant amount of work.
Does this data already exists (ideally free with a ...
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Seeking road network of Sweden with speed limits
I need road network data of Sweden with the speed limit of each segment of the road. I downloaded it from https://download.geofabrik.de/ but unfortunately, there are a lot of missing values there.
Is ...
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