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

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1answer
127 views

Finding intermediate points and speed over a segment

I have a dataset which is in the form of ( Time , Car ID, Speed at that moment, Lat,Long) and I need to do some machine learning on the data to answer the following questions : Best route from ...
4
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1answer
280 views

Google Maps City Crawler

This question is just theoretical but it occurs to me that it can't be all that impossible. Seeing as how Google is just a big web spider that essentially starts out at one page, like index ...
4
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0answers
615 views

How to use Route Task in Network analysis tools

I am using esri network analysis tool and I just want to draw the path between two clicked point on the map (by using route task) I use the example code block in the following link ...
2
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2answers
1k views

Online Routing Service (non-Google)

im currently blueprinting something i wanna develop. Thinking about the stuff that would be needed, i figured out that i would need to have a pgRouting/postGis Database somewhere. The program i wanna ...
3
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1answer
127 views

Choosing a GIS which imports a list of stage addresses, calculates the route, allows to modify and export it

I'm new to GISs. I'm searching for a GIS to meet following requirements. I have a list of street addresses [A,B,C,D,E,...], with additional information associated (basically which orders to deliver ...
35
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3answers
6k views

Are there newer routing algorithms (than Dijkstra, A*) in GIS databases?

There are works like Reach for A* from Microsoft researchers and Highway Hierarchies by Sanders and Schtolz (if I spell the name correctly) from Karlsruhe Uni. Both of them reduce the calculations ...
5
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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, ...
2
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1answer
1k views

Queries on virtual network in Spatialite only make errors

I've installed Spatialite 2.4 in Ubuntu. I try to convert an osm file into a roads network using this tutorial and make searches on it, but the queries only produce "no column" errors. $ ...
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0answers
377 views

How to specify attributes for network dataset? [closed]

Using ArcGIS 9.3 to try and create some routes with network analyst... currently following this tutorial: Network analyst tutorial for 9.3 I have a street dataset from NYS clearinghouse. I can't seem ...
6
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2answers
344 views

How to compute the routing through N addresses/coordinates?

I have a set of N coordinates (addresses). My goal is to compute the shortest driving route through the set of coordinates, where the algorithm (not the user) decides which of the N coordinates should ...
10
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2answers
249 views

Which weather on my road? Looking for a spatial weather forecast web service

My friend Bob goes from A to B leaving tomorrow morning at 6:00. There are many direction services that indicates him short, fast and/or cheap routes. Bob does not like to drive under the rain and ...
8
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1answer
816 views

How to work with shortest_path_shooting_star() in pgRouting?

It's been a while we are using PostGIS to store our Geometry information in our Postgres database. We have developed vertex-to-vertex routing ourselves using iGraph library. Yesterday I read about ...
9
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1answer
2k views

Difference between network dataset and geometric network

In ArcGIS, what is the difference between a "network dataset" and a "geometric network"? Are there differences with what can be done with each?
6
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1answer
627 views

Best routing algorithm for this scenario

Trying to work out the most appropriate routing algorithm to use for this situation. Even better if it's available as part of pgrouting or similar.. Here's the requirements: Specified date/time for ...
9
votes
3answers
435 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. ...
3
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0answers
163 views

Three Dimensional Routing Input Location Errors and Questions, ArcGIS10

I am having a bit of a problem with my three dimensional route solving. I am creating an interior building network, and ideally would be routing from room to room. I created a line feature class, with ...
11
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4answers
2k views

Route optimisation for multiple vehicles

I have 100 destinations and 5 vehicles and I need to code a solution that efficiently routes the vehicles to each destination, so each destination is visited by 1 of the vehicles. Some of these ...
2
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2answers
259 views

Ordnance Survey No Turn

I have a project that involves porting a lot of information from ordnance survey to a spatial database. From that database I'm going to extract the information I need for a routing application. ...
3
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2answers
692 views

how to determine drive times like those available in google maps

I'm very new to GIS but have played around a bit with postGIS and qGIS. I'm wondering if there's a way to generate drive time estimates like those given by google maps using open source tools. For a ...
5
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0answers
205 views

How to set order of operations for Field Calculation in Network Analyst Evaluator Dialogue? [closed]

I desire to have a ratio calculated each time I create a new route. To get this ratio, I created and populated a field that multiplied the length of each segment by a designated number from 1-5, ...
13
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0answers
554 views

Incorporating Length of Route Value into Cost Evaluator Function (ArcGIS Network Analyst)? [closed]

A friend and I (who more frequently than I posts on this board) are creating a walking network and we have run in to a snag. We would like to attribute a cost evaluator to our network dataset using a ...
3
votes
1answer
664 views

Network Analyst hierarchy routing issues. (ArcMap)

My friend and I have created a walking network. We created a network without a hierarchy evaluation and the routing worked fine, but when we added a hierarchy to the equation many routes won't solve. ...
4
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4answers
477 views

Assessing OpenStreetMap coverage for international routing

I posted the following question on the main StackOverflow website, but was informed that I might get a better response here. Hence I'm copying it below. Note however, that I have an active bounty on ...
37
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7answers
10k 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 ...
2
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1answer
622 views

Routing Application in Windows

I am making an routing web application similar to Google Maps 'Get Direction' feature. But because of the limited control and data on GMaps, I decided to use OpenStreetMap instead. This also made me ...
5
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2answers
2k views

Geoserver Routing with OSM data and PostGIS

Does Geoserver have a routing functionality for the OSM data in PostGIS?
8
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2answers
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How to convert OSM Data to PostgreSQL for Routing Purposes?

I'm creating a routing application using OpenStreetMap. Currently, my task is to convert the data from an OSM file to PostgreSQL. I read about osm2pgsql, but the problem is it says there that ...
10
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5answers
4k views

Which tools and methods can be used to create isochrones?

I'd like to get an idea for what's involved in creating isochrones for a series of sites, with a reasonable degree of accuracy to the estimates. A general outline would be great, though my scenario ...
8
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1answer
242 views

How to convert a track of points into walking directions?

Imagine you have a list of points (latitude + longitude) you have previously recorded with a GPS receiver. Now, you need to convert it to a textual representation of the route you followed. Example: ...
8
votes
3answers
2k 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 ...
2
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4answers
834 views

ArcGIS Mobile 10 Routing Solution

Does anyone know of an example of routing within ArcGIS Mobile 10 that uses GPS location to route to a destination? Thanks, Seth
2
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1answer
135 views

How do GPS receivers map out directions?

Although I've never really dug into it, I've always assumed mapping out directions in a GPS unit is done with A* or Fibonacci-heaps at a higher level and Dijkstra's algorithm for smaller graphs. Are ...
23
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10answers
4k 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 ...