Questions tagged [routing]

consist of finding optimal paths along geographic networks such as roads or trail systems.

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20 views

r.terraflow fails after using fill-sinks

I'm using QGIS 3.10.11 with GRASS 7.8.4, and the default SAGA version that's included with the QGIS standalone 3.10.11 installer from QGIS.com. I'm having an issue where r.terraflow fails after using ...
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2answers
80 views

Routing with set of points and barriers individually using ArcGIS Network Analyst

I need to run network analysis routing (to calculate distance) on pairs of points with barriers. I have 3 feature classes: Origins Destinations Barriers All 3 of which share a common unique ID ...
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6 views

ArcGIS Online Routing - Multiple route end stops?

Is it possible within the ArcGIS Online analysis - Plan Routes, to select multiple route end stops? By default you can can select a stop to start the routing (depot), the stops to visit, and an end ...
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20 views

Checking population data for plausibility in OpenRouteService QGIS Plugin

Does anyone have any experience how reliable/plausible the reachability analysis for German cities are? Can anyone report whether the population data, which are supposed to come from the "Global ...
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46 views

Time taken to build the routing network in the pgrouting

I am using: PostgreSQL 9.6 pgRouting 2.6.2 PostGIS 2.5 I have line geometry shapefile of count 700K. When I build the network using pgr_createTopology in the new DB, network created within 1 ...
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46 views

Calculating driving time between two layers (patients & hospitals)

I need to calculate the driving time (following US roads) from patient coordinates to hospital coordinates. In total, I have ~ 250,000 driving time to calculate. I previously used ArcGIS but now I ...
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1answer
40 views

What routing system support off-road routing for Leaflet integration?

I have a collection of regionally specific linestrings and multi-line strings which are off-road paths. I would like to be able to integrate these into a Leaflet routing systems which would ...
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1answer
72 views

Grade separation routing using pgRouting

I am using pgRouting version 2.6. I am creating a routing topology from a subset of lion data https://www1.nyc.gov/site/planning/data-maps/open-data/dwn-lion.page I have gone through the process of ...
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24 views

Incorrect Routing Times in ArcGIS Desktop 10.7

I'm trying to find an OD Cost Matrix for a sample of zip codes in LA, San Bernardino, and Clark (NV) Counties using TIGER Data found here: https://www2.census.gov/geo/tiger/TIGER2012/ROADS/ (the files ...
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1answer
25 views

Connecting two points with existing polylines

I have two layers, one with the points I want to connect and one with the existing streets. Now I want to find a route along those polylines to connect my two points. I didn't find any tools yet. How ...
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8 views

Custom MMPK and null solveRouteResult route startTime

I 've created an mmpk file of a network dataset using ArcGIS Pro v1.2. This file is consumed in an arcgis runtime WPF application for routing purposes. Everything works ok except for the <<route....
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19 views

Identify Road features that do not connect to the main network

I have a large roads dataset consisting of about 2 million features that I am trying to prepare for routing analysis. I need to identify features that are isolated from the main roads network so that ...
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75 views

QNEAT3 doesn't work on all networks

I have a point layer and three different network layers and am trying to create OD-Matrices for all the points using the QNEAT3 plugin. It did work out fine on two of the three networks, but the ...
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0answers
43 views

Creating isochrones in a travel-time map

I'm working on building a travel-time map using time-expanded model and Java. I calculated the reachable points with Dijkstra's algorithm from a start point and within a specific travel time and I ...
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1answer
43 views

Where do services that compute travel time get traffic data?

Recently, I have been studying routing services that calculate travel time and distance. And I had a question, where do these services get traffic data from. I found a lot of information about Google. ...
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22 views

Make an object move along a route given by an OSMR RouteStep object

I want to create an agent based simulation of traffic. I have an object for a car (an agent) that has a starting point and a destination. Using the OSMR API, I request a route between the two ...
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1answer
26 views

Capacitated Vehicle Routing Problem with Categories

My problem resembles the capacitated vehicle routing problem but there is an aspect to it to which I've been unable to find a solution in tools like ESRI's Network Analyst. The problem is to find the ...
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1answer
95 views

How to limit the search for facilities to only 1 unit with PG Routing? … Closest Facility in PostGIS?

I'm working in PGROUTING - POSTGIS I have my road network and two sets of points -firestation and the entire cityblocks from town (in diferent tables, 1 for origin, and 1 for destination). The plan ...
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2answers
32 views

Looking for land value data for anywhere in North America especially for Florida [closed]

I am researching on road alignment optimization. The research goal is to find least cost road alignment between two given points, considering highway codes. One of major costs which I need to consider,...
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1answer
34 views

Finding optimal Bus Transit Center location

My project aims at finding the accessibility of transportation to my university. I have around 6000 student data points(lat/long coordinates of each 6000 student location) and I have plotted them on ...
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10 views

Optimizing route distances between multiple start and end points (ORS A.K.A OSM) [QGIS 3]

I am trying to optimize the route between multiple start and end points, meaning the total number of routes to be calculated is in the order of around 10.000. I have tried the ORS plugin, which ...
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1answer
67 views

Nearest / Fastest Point using OSRM

How can I use OSRM to given a destination and 5 origins. Then OSRM should return the fastest origin, the distance between this origin and the destination and the duration of the route. Can I do it ...
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1answer
79 views

Find Closest Route from single source to several different destinations in PostgreSQL

I've made network nodes in PostgreSQL SQL based on Osm2po. I can find the closest way among two points based on the pgr_dikstra algorithm but I want to find the closest route between one single source ...
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122 views

Completing network edges through an area using osmnx

Context I want to plot a network (i.e. a graph, topologically connected where routing algorithms can be used) from openstreetmap data (this is linked with the python code snippet presented here: ...
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1answer
323 views

QGIS QNEAT3 AttributeError by creating isodistances/isochrones

Trying to generate isodistances/isochrones in the QNEAT 3 plugin I got the following error: > Traceback (most recent call last): File > "C:/Users/User/AppData/Roaming/QGIS/QGIS3\profiles\...
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2answers
121 views

Routing consecutive set of points on network [closed]

I need to generate routes based on a consecutive set of points exactly as given in this routing script by Anita Graser. As given in this image, I have a layer of consecutive points as well as a ...
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0answers
45 views

PostGIS - Measuring the angle at the touching point of two lines

I want to calculate the angle of two lines of a routing network exactly at the "touching point" (the topological vertex). My previous attempt was using the ST_ANGLE() function of PostGIS, which gave ...
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1answer
224 views

Finding the distance between two coordinates (longitudes/latitudes) which are not found as nodes in OSM

I intend to make my own OSM Router, and I do not want to use third party OSM routers. WHAT I HAVE DONE: I have downloaded OSM data in XML format and applied different algorithms to find the shortest ...
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97 views

Routing for Waste Collection (U-Turn problem)

A general question about routing problem: I am working on waste collection problems and I am having some trouble with some routing problems (the truck has to pass by every bin). So far I have tried a ...
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1answer
115 views

Finding route between 2 points based on same attributes using ArcGIS Network Analyst?

I'm using Arcmap 10.5 and I would like to solve a network analysis problem. I have a road network layer and two point layers. The first points layer contains the start points, the second one ...
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41 views

What closeness measures are appropriate to this undirected graph?

I need a way to measure the closeness centrality of every single NODE(i) in respect to all NODES(j), 1 NODE(i) to all NODES(j) and, another measure that describe somehow the geometric properties of ...
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1answer
58 views

Seeking Python API to assess accessibility to foodbank site?

The aim is to look at accessibility or lack thereof, in certain areas of the city, in order to inform future foodbank services. I have been working in Python/Spyder, and using OpenRouteService API to ...
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2answers
319 views

Error sending request to OpenRouteService API from a set of client addresses to a foodbank site

I am sending a request to OpenRouteService API from a set of client addresses to a foodbank site: I am passing coordinates in the form ((x1,x2),(y1,y2)) where x coordinates are from a large csv file, ...
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89 views

Calculating shortest route in Geopackage/SQLite

Are there any graph analysis tools written for a SQLite database? What I'm looking for is something akin to pgRouting but for SQLite. I can't find anything with a significant user base, which is ...
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1answer
146 views

Automatically create path between two points via roads in Google Earth (Pro)? [closed]

Does Google Earth have the ability to automatically create a path between two points connected by roads?
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1answer
242 views

Why pgr_dijkstra() only finds the routes that are pretty straight?

I am trying to use pgRouting in order to find the shortest route between two points. I realized that pgr_dijkstra() function is not able to find the route when the two points are far from each other ...
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0answers
549 views

Display route and the two markers in Leaflet routing Machine?

How do I make the route and the two markers appear in Leaflet routing Machine? Here is my code: <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> ...
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0answers
42 views

Shortest route between large amount of points

I have to check the street lights of various communities. There are approx. 540 lamps to check, I was wondering if QGIS (or any other opensource software like PostGIS or R) can help me finding the ...
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1answer
30 views

Fails ST_intersects(geom, select statement) for drive time

I am trying to select houses in a drive time isochrone. I have the code working fine to make the isochrone. I can't place the results in a seperate table I need the isochrone in a where clause Is ...
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1answer
89 views

Integrating NA (network analysis/routing) service in Web AppBuilder?

We had a requirement for routing in our application. As the arcgis online routing service is credit based we have published our own network routing service in arcgis server 10.6 using the road layer ...
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126 views

Cannot read property 'decode' of undefined in lrm-google

I am following this doc Lrm-google to use google direction api with leaflet routing machine. I haven't changed much of my code except replacing geocoder: L.Control.Geocoder.nominatim(), with router: L....
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1answer
732 views

With leaflet-routing-machine, how to bring a route on top?

On a simple Leaflet map, with leafleat-routing-machine, if two routes pass by the same place, only the top one is visible. I can live with this if I can choose which route is on top, (for example by ...
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1answer
326 views

Creating minimum spanning tree using OpenStreetMap and QGIS?

I'm working in QGIS (3.8) and PostGIS (2.5) and I have 2 layers: 1. set of points, 2. set of OSM roads. I would like to generate a subset of the roads network which represents the minimum spanning ...
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1answer
268 views

Prevent leaflet from zooming after adding a route

The leaflet routing machine hello world adds a route on the map and automatically zooms to fit the route. var map = L.map('map'); L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', { ...
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1answer
226 views

OSM routing database with high quality data? [closed]

Our company is searching for a routing service which provides free OSM database (high quality routing data) and preferably also considers the traffic parameters (traffic flow, day etc. similar to no-...
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1answer
128 views

Adding free routing services in ArcGIS Web AppBuilder (developer)?

To add free routing services like openrouteservice or ORSM in WAB(developer) can we use the directions widget or do we have to develop a new widget for it?
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139 views

GRASS GIS: Time series of overland flow from r.sim.water

I am trying to perform an overland flow routing on a large area using r.sim.water in GRASS GIS. I've looked at other answers and made sure to set my computational region to the elevation raster I'm ...
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0answers
63 views

Configure mapconfig.xml for null tag_value

I am using osm2pgrouting version 2.3.6. When using osm2pgrouting for .osm file, I created tables ways. However, when I compared it with table planet_osm_line, it lost a lot of line. I determined ...
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0answers
22 views

Memory management in offline routing with n waypoints?

I am trying to build an offline routing system with a map database on a portable Android device. Since I am still doing some research, I am stuck on what I think is a fundamental problem. To find the ...
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0answers
29 views

Which sensitivity analysis is most suitable on cost factors in route planner? [closed]

I am working on developing a route planner with alternative impedance/cost factor (safety of the route). I am building the application mainly in pgRouting. As a final step I would like to perform ...

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