pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality.

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2
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1answer
162 views

How to link pgrouting edges with street names to route user based in street names?

I have installed postgreSql + postGis + pgrouting and I have loaded OSM data into my database using osm2po and shp2pgsql. How can I search for points in the map using the street names and then route ...
0
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2answers
235 views

Edge column in pgr_dijkstra

I am using pgr_dijkstra for finding the shortest path between two given nodes. The network map is actually a grid based one and I have created all the necessary columns and working fine. But I do not ...
0
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0answers
46 views

PGRouting 2.0 for RHEL5

Is there a PGRouting 2.0 rpm package available for Redhat Enterprise Linux 5.8 and has anyone managed to install it successfully?
3
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1answer
108 views

Is Postgres and Disk IO limiting pgRoutings performance?

I am doing this Q&A style because I have done my google research and I could not find any thrustworthy and 'benchmarked' data. So I did it myself. CPU vs DISK as 'the limitting' factor on ...
0
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2answers
220 views

how to build a routeable network for pgRouting with srid 3785

I'm following the pgrouting-workshop http://workshop.pgrouting.org/chapters/topology.html and It works, but in my project I'm working with the mercator projection(srid 3785) and there is not a routed ...
2
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1answer
146 views

Issues when using pgrouting's shortest path

I am having some issues when using pgrouting's shortest path. I am following this tutorial available at http://workshop.pgrouting.org/chapters/shortest_path.html#dijkstra. This query returns a list of ...
5
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2answers
779 views

Trouble installing pgrouting

I'm trying to install the pgrouting library but have hit a bit of a problem whilst installing. It's probably something I've done (I'm quite new to Linux so struggling to understand the error message). ...
1
vote
1answer
142 views

Installing PgRouting

I am trying to install pgRouting 2.0 on postgressql. After writing the data from the share and lib folder into C:\Program Files (x86)\PostgreSQL\9.1... I tried to create pgrouting extension on pgadmin ...
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36 views

Are there any code examples of plotting pgRouting on Google Maps available?

Does any colleague know about a code example of plotting pgRouting on Google Maps?
5
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1answer
171 views

osm2pgrouting stuck (showing classes table created) when importing an osm file

I am trying to import an osm file using osm2pgrouting. while following the pgrouting workshop. (file is 700mb~) im running ubuntu 12.04 on m1.large on amazon. the same file was successfully upload ...
0
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1answer
47 views

pgrouting 2: missing pgr_findnearestnodedwithin function

With the PgRouting 1.5 I was using the find_nearest_node_within_distance function and it works, but now I'm moving the project to PgRouting 2 + Postgis 2 + PostgreSQL 9.1, and now that function, I ...
0
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1answer
31 views

Unable to download osm2po from the original site

I've been trying to download the osm2po tool, in order to import the openstreetmap data into postgis database, from the original site and is impossible for me. All links I find in the page are cyclic, ...
0
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1answer
229 views

Pgrouting functions and geoms type not found. Install failed?

I have installed a postgresql 9.1 and postgis 2.0 from source. I couldn't launch this : # Add pgRouting launchpad repository ("stable" or "unstable") sudo add-apt-repository ...
3
votes
1answer
113 views

How can I move along a line (or path)?

Given a line (street, railroad, river...) I want to simulate a moviment inside this line. Example: See this picture: Say I'm in "Nagqu" and want to move to "Kunlunqial". In a time (t=0) I'm in ...
0
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1answer
51 views

How to get edge length(distance) from pgrouting DB

I have implemented pgRouting workshop and it's working fine. I need to get every edges length in kilometers to do some calculations I studied the ways table. It contains a length attribute, but it ...
2
votes
1answer
186 views

pgrouting: Using nodes instead of ways

I want to compute the shortest path between two points origin=(34.052299,-118.1812657) destination=(34.141132,-117.853179). Below is my workflow. Step 1: Find the nearest nodes. origin: the ...
0
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1answer
50 views

Identify the direction of traveling road segment

I'm using pgRouting to find the least congested path using time as the cost metric. I am using average speed between two nodes to calculate time taken to travel in a segment. In pgRouting there is a ...
0
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0answers
32 views

Shortest path with varying costs

I have three different layers on different road types in three tables in PostGIS 2.0; freeways, main_roads, and small_roads. I want to calculate the shortest path with the pgRouting function ...
1
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0answers
28 views

What is the best way to manage permissions as root installing postgresql and postgis?

I've encountered an issue numerous times where I lock myself out of my postgres installation as a result of modifying my pg_hba.conf file and therefore screw up my postgres installation because I ...
1
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2answers
948 views

Calculating many shortest paths with pgRouting

I 145013 Danish addresses, and 10 big cities in Denmark as points in QGIS. Furthermore, I have four vector layers that connect all the points. They are small roads, main roads, freeways and ferry ...
1
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2answers
232 views

Why is pgrouting driving distance skipping edges?

I have a road network where I do a driving distance operation through pgrouting. This is my SQL: SELECT * FROM driving_distance('SELECT gid AS id,source,target, cost FROM ...
2
votes
2answers
139 views

How to create a network from nodes and boundaries?

I have a table of nodes (points) and i wish to route between the points. Its my understanding that i first need to build a pgrouting compatible topology (graph ?) that connects all the nodes using ...
8
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2answers
163 views

Feeder bus service

First of all, a little background. I work for a regional transit agency. We are making a "diagnostic" about our feeder bus service. We'd like to know what proportion of our users could take the bus ...
1
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2answers
331 views

Calculating millions of distances with Road Graph

I'm new to GIS but thanks to the answers I got in another question here on GIS stack exchange I was able to increase my knowledge significantly. This question is related to an earlier question I asked ...
0
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0answers
113 views

getting a geoJSON string using pgrouting and path drawing in an Android application

Currently I am working on a project that displays a route in an Android application. I have configured pgrouting 1.5 workshop and it's working fine using a web browser. In order to draw the path in ...
4
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1answer
335 views

How to use more than one CPU?

I'm creating a real time traffic application. I read the AVL car data from a web service and insert the records in a PostgreSQL table Then a trigger calculates the closest link and if there is a ...
3
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2answers
331 views

Reinventing the wheel: Public Transit System

I'm building a public transit service in South Africa, and I initially started the project on PHP and MySQL. I've managed to get far with the simple stack, with: Routing algorithm in PHP Data ...
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0answers
27 views

Identify road segments of pgrouting for update values

I'm using pgrouting for discover least congested path for some destination for that i have to change the cost value from distance to some dynamic value. I calculate that value from some data which ...
0
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0answers
116 views

pgRouting TSP with distance matrix when the end node is specified

I'm a little bit lost: how does it actually work? Here's the query: SELECT * FROM pgr_tsp('{{0.0,0.0215410000058,0.0445673059851,0.0427254110132,0.0504644580794}, ...
4
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2answers
404 views

Create a network topology for pgrouting with grade separation

I have built a network using Ordnance Survey's ITN data and I can solve routes across the network. What I need is to build in grade separation topology for overpasses and underpasses on the network so ...
1
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1answer
58 views

Libraries to navigate and choose path based on congestion level?

I'm trying to develop a system to get best path to travel user based on road traffic (congestion level). Functionality of the system should be provide least congested path for traveler given ...
4
votes
2answers
413 views

Why is any pgr_* routing function taking forever based on OSM data in an pgrouting enabled DB

I loaded the German OSM dataset into the pgrouting DB by using osm2po 4.7.7. Everything works fine i have osm2po set up via it's config and it's working like a charm through it's Java part. I had the ...
0
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73 views

Route through water polygons

I have a water-polygon grid shape file as shown (Each grid is 1latx1long): I have created this in QGIS and files (coastal lines and land polygons) selected from http://openstreetmapdata.com/data ...
1
vote
1answer
551 views

Error importing a map with osm2pgrouting

I am trying to import an Italian osm file into PostGIS with osm2pgrouting. I launched the script and it worked until it encountered an error. This is the output of osm2pgr: ..... Nodes table created ...
0
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1answer
123 views

pgRouting TSP: is it possible to apply to the roads network?

I want to solve a TSP problem on a set of points from a road network (given N points, find the shortest possible route to visit them all). It seems that pgrouting pgr_tsp function doesn't take into ...
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0answers
238 views

How to use pgRouting (pgr_drivingDistance) with GTFS?

I used gtfs2pgrouting to import gtfs data in postgresql, then I have these tables List of relations Schema | Name | Type | Owner --------+-------------+-------+---------- gtfs | ...
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56 views

How to avoid intersection in pgRouting

I'm a newbie in pgrouting. I want to create a web-app with routing function. I want to ask how to avoid a road intersection with pgRouting? For example, there are some traffic jams happened in several ...
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129 views

pg_routing / osm2po routing not working

I'm trying to make working pgrouting 2 but no luck. Generally it is working but routing table is completely wrong. I did import osm database using osm2po(): java -Xmx1024m -jar ...
0
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0answers
72 views

What is default unit of st_length in pgrouting for osm shapefiles?

I am using st_length to find the distance between two nodes on a way. What is the default unit of the distance returned. I am using data from openstreetmap shapefiles
2
votes
1answer
68 views

How to avoid sharp turns in PgRouting?

I need to generate routes that will be performed in long vehicles. The path can not have curves 90 degrees because the streets are narrow.
1
vote
1answer
165 views

Travelling salesperson in pgRouting without starting point

I'm a beginner with PostGIS and it's the first time I try pgRouting. I work for a regional transit agency and I'm trying to develop a mean to evaluate the easiness or difficulty to offer a bus ...
0
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0answers
70 views

osm2pgrouting can't get ways.the_geom srid

When I try to launch osm2pgrouting osm2pgrouting -file ~/Téléchargements/mayotte-latest.osm -conf /usr/share/osm2pgrouting/mapconfig.xml -dbname routing -user gisuser -passwd fred1490 -clean I get ...
0
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2answers
591 views

PGROuting 2 : Getting nearest node to a given point (with lat - long given)

I have a point whose latitude and longitude (only) are known, and a table of nodes with their geom. I want to find the closest node in the table to the given point. I think I can achieve this with ...
0
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0answers
53 views

Basic use of pgrouting 2.0

i'm fighting with pgrouting 2.0 and lack of documentation or examples. I did import map to psql using osm2po tool, then i build topography, i locate start and end points ids - ( they match database, ...
2
votes
1answer
240 views

Convert SmallWorld GIS topology to pgRouting topology

Is there any way to convert SmallWorld GIS topology to the format that pgRouting use? My costumer have use SmallWorld GIS and make his topology on it. but when he export his information as shape file, ...
0
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1answer
159 views

Using pgr_drivingDistance with large ids

I have little experience with postgres and none with pgrouting. I'm trying to use the pgr_drivingDistance function with Open Street Map data (generated through osm2po), but whenever I run my query: ...
0
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0answers
41 views

Osm2pgsql and pgr_astar

How can I use the osm2pgsql schema with pgr_astar? How to do this(1*) using osm2pgsql? 1* SELECT id, source, target, cost, x1, y1, x2, y2 [,reverse_cost] FROM edge_table
1
vote
1answer
185 views

Why does Driving distance of pgRouting return disconnected results?

I am trying the driving distance function of pgRouting 2.0 beta, with an extract of OSM data. The problem i have is illustrated on the following image : On this picture i try to get all the ways ...
0
votes
1answer
67 views

pgRouting:routing problems using reverse_cost

I saw this post:Routing issues with pgrouting, and try the ability of reverse_cost. As the result of this post, if there is only one way to go from one node to another, even though the reverse_cost ...
0
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1answer
81 views

create node ids with a multilinestring

I've got to make a route with my multilinestring table "routebus", but I can't create the node ids... maybe the fact that it's a multilinestring is the problem, but I really don't know how to solve ...