Tagged Questions

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

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20
votes
10answers
3k views

Alternatives to pgRouting

I was wondering if there are any alternatives to pgRouting tools. Thinking about it for a bit, I think the only alternative is to use R or RPY to do the analysis. Basically I'm trying to solve ...
4
votes
2answers
772 views

Is Shooting Star broken in PGRouting 1.05?

I'm using pgrouting DLL 1.05 with postgresql 9.1. All required function installed. Astar and Dijkstra work fine with sample data but "SHOOTING STAR" is not considering "reverse_cost". Also if i try ...
8
votes
3answers
1k views

How to emulate Google Maps driving directions using pgRouting?

Would like to emulate google maps' driving directions functionality but use pgRouting instead. google's data over the project area & scale is quite a bit off so we want to use our own transport ...
30
votes
7answers
5k views

Creating drive time polygons using open source tools

Is anyone using open source tools and/or data to generate drive time polygons that radiate out from a given location? For example, I have used ESRI products like Network Analyst and Business Analyst ...
6
votes
1answer
1k views

How do I get a route between two points using PgRouting with TIGER2010 Data

A little background: I've got PostGIS 2.0 and all the TIGER2010 data loaded for a U.S. State California. I've got a table with points stored as data type geometry. I've learned enough to get the ...
4
votes
2answers
2k views

Installing pgRouting in Windows 7

Can you please help me out in Installing pgRouting in Windows 7 64-bit version. I have been trying it for days. Since I am completely new to this please provide me the initial requirements and steps ...
8
votes
1answer
245 views

Which pgrouting workshop or tutorial is most current?

Please recommend pgrouting tutorials or workshops that are most current. I ask because I just read a post that claims a tutorial is deprecated. (see osm2po vs osm2pgrouting: workshop post) I am ...
4
votes
3answers
1k views

Newbie PostGIS Geometry and Multilinestring Clarification

I'm having some trouble figuring out if I've got the right data loaded for PgRouting. Using the bash script included in PostGIS 2.0, I loaded Tiger2010 data for U.S. State California. The edges ...
3
votes
2answers
285 views

Web-based user editable routing application

I am totally new to web-based GIS (and open source GIS) and am now working on a web-based travel planner using Postgis and Pgrouting with multicriteria costs. I want the end users (the traveler) to be ...
2
votes
1answer
277 views

Plot the nodes of the shortest path found by dijkstra algorithm

I am using qgis and pgrouting plugin to find the shortest path between two nodes and display the route. Currently, the plot shows the shortest path. However, I also want to know which nodes the path ...
2
votes
1answer
330 views

routing using openlayers and pgrouting

I would like to do a Dijkstra routing using pgrouting and openlayers. I have the downloaded osm data. I am following the workshop given in this link. But since I am very new to this I found it ...
1
vote
1answer
162 views

How to control what kind of tags / flags are imported with osm2po?

With the help of osm2po, I have successfully inserted the contents of the italian files (italy.osm.pbf) in a pgrouting-enabled database (postgresql 8.4) It displays fine in Qgis, using rule based ...
1
vote
0answers
86 views

Why are start and end segment not partially skipped?

Im using TRSP routing algo. I want to skip partially start and end segment part for point to point routing. Percent along start edge 0.6, percent along end edge 0.4. Route generated but start and end ...
1
vote
1answer
258 views

Issues while plotting the results of pgRouting shortest path

I am trying to plot the shortest path returned by pgRouting. However, I am having some issues. Sometimes it comes out a mess. I have just joined the coordinates of the edges returned by the ...
0
votes
1answer
267 views

How to generate all possible routes between two points?

I have a network dataset in ArcGIS and I need to generate all possible (not only the shortest one) routes between two given points (A, B). Is it possible to do it with the Network Analyst? Or with any ...
12
votes
3answers
592 views

PgRouting - How to clip links when reaching max costs?

I have a polyline shapefile representing a road network and a second shapefile containing points. I would like to use PostGIS (presumably PgRouting) to identify sub-networks or service areas radiating ...
13
votes
3answers
2k views

How can I optimize pgrouting for speed?

I am using pgrouting on a postgis database created through osm2pgrouting. It performs very good on a limited dataset (3.5k ways, all shortest path A* searches < 20 ms). However since I have ...
7
votes
6answers
637 views

Shortest Path using interpolated OSM points

I have a set of GPS points which I have snapped to the OSM network. In the below screenshot GPS points are red, snapped points are green. I want to calculate the shortest path that includes all of ...
2
votes
1answer
859 views

How to find the nearest point projected on the road network?

I would like to know if there is a function at pgRouting that given a point (lon/lat) can give you the projection of that point to the road network . Thanks in advance john
8
votes
3answers
388 views

Help making the DARP example run

I've compiled and installed DARP branch. Is there any data example to test it?. I've used some data based on document instructions http://www.pgrouting.org/docs/1.x/darp.html but no results return. ...
5
votes
1answer
543 views

How to route over (partial) edges in pgrouting?

I have made a route planning system (based on shortest path using A*) like the Google directions service using pgrouting and google maps. It includes clicking on the map to generate waypoints, ...
4
votes
3answers
1k views

How to make routable OSM map

I have some routable data for testing my pgRouting functions, and everything is fine. Now I have to download some more countries from OSM. I downloaded Germany shape files, but OSM maps are not ...
4
votes
3answers
968 views

How to make pgRouting faster?

I have table network which has about 2 million records (only 3 countries in Europe). When I run Shorthest-path it is very slow, it takes 3 min to take records only. I tried with ...
4
votes
3answers
2k views

How does assign_vertex_id() in pgRouting work?

I'm trying to follow this tutorial, http://www.pgrouting.org/docs/foss4g2008/ch06.html but on the step with assign_vertex_id() it shows an error for executing the SQL query: SQL error: ERROR: ...
3
votes
1answer
309 views

Using OSM data, pgRouting, and dummy data to develop an origin/destination travel matrix

Further to my previous question I was wondering if it is possible to add dummy node data without to do routing analysis. ISSUE I have a polygon layer that represents zonal attributes I created a ...
1
vote
1answer
435 views

How to solve the “Undefined symbols in librouting.dylib” issue on Mac Os X?

I'm trying to create a Homebrew formula to let anybody install pgrouting on his or her mac. I've seen this question: How to fix pgRouting librouting_dd.so: undefined symbol error? I'm also following ...
9
votes
3answers
368 views

How to add offsets to the route?

Edited: I want to ilustrate my question. Suppose that you're in "Point A" and want to go to "Point B". This points wouldn't be in "at_2po_4pgr" table cause aren't source/targets nodes. Then, I ...
7
votes
3answers
203 views

Why doesn't pgRouting return the best path?

Let the next portion of a graph: When I use the function shortest_path between the points A and B, I got the blue path. Why does this happen?
5
votes
2answers
1k views

How to get multiple shortest paths with PgRouting in one query?

I want to run shortest path algorithm on multiple source&target pairs at once and get a result as a table and process it then. How do I do this? This query does not work: SELECT a.source, ...
3
votes
2answers
369 views

Does pgRouting support turn-by-turn routing?

I have route list as result of pgRouting with street names. How to get messages "Turn left", "Go along" etc ... Can pgRouting do this or I need some other source and which?
3
votes
1answer
1k views

pgRouting for postgresql 9.0?

Is pgRouting 1.05 compatible with postgresql9.0 Win32? I am a newbie, and I have spent three days trying to build it for postgresql9.0, but without success in the end. Thanks. Yes, you are right. I ...
3
votes
1answer
1k views

Configuring pgRouting on Win7

I'm installing pgrouting (ver 1.03_pg-8.4.2) on my windows machine. I installed PostgreSQL and postgis without any problem, then I downloaded the binary package of pgrouting and I installed it (copy ...
2
votes
0answers
122 views

From pgRouting shortest_path back to osm node id

I'm successfully performing path finding queries like shortest_path on data imported with osm2pgrouting. The tables I have inside my pgrouting DB are the following: List of relations ...
2
votes
4answers
453 views

How to fix Error: could not access file “$libdir/librouting”?

I am trying to run the sql file of pgrouting-> routing_core.sql in mac. However it displays the following error psql:routing_core.sql:32: Error: could not access file "$libdir/librouting": No such ...
1
vote
1answer
192 views

Unreachable vertex

I'm developing an application for academic purposes that mainly gives to the user a recommended itinerary for a previously introduced preferences (Gastronomy, Leisure,etc.). For this purpose, I use ...
1
vote
1answer
168 views

Does OSM2PO take into consideration turn restrictions?

It is supposed that for using Shooting star function in pgrouting, we need to have RULE and TO_COST fields in our table, but OSM2PO hasn't created those fields. what must i do for OSM2PO takes into ...