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How can I get linear network data to find the co-ordinates of street intersections?

Hi all,

I am working on a project that requires to find the co-ordinates of street intersections. Are there any ways I can convert the data I downloaded from OpenstreetMap to a linear network which the nodes are street intersections?

Does any one can give me suggestions about tools that I can use or ways that I can pull this off directly from the website?

Thanks so much!

intersection linear coordinates network

asked 08 Nov '13, 00:28

ShengLin lynn
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accept rate: 0%

edited 13 Nov '13, 17:09

aseerel4c26 ♦
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One Answer:

See these existing answers:

answered 08 Nov '13, 13:03

Frederik Ramm ♦
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accept rate: 23%

Thank you!

(08 Nov '13, 21:46) ShengLin lynn

I just saw two programs called "Osmfilter" and "Osmcorvert." Is that possible for me to get the linear network dataset in a csv file by using these two programs?

I am using R (a software for statistics analysis) for my project, and there are not that many things I can do with an osm file. Could you give some more suggestions if it's possible?

Thanks so much!

(11 Nov '13, 21:16) ShengLin lynn

As far as I know, osmfilter and osmconvert can not extract intersections easily.

(12 Nov '13, 12:24) gormo

Hello Shenglin, please tell us in what format you have your linear network data set now. Is it already in a kind of database? What about loading it in a database and then form an output you can process with R ?

(12 Nov '13, 16:45) stephan75

Right now, I only have the dataset which I downloaded directly from OpenStreetMap, and it's a osm file. I can use R to extract the latitudes and longitudes of all nodes, but I am unable to find a way to filter out the street intersections points.

So I am wandering if there are any other tools can help me to get the co-ordinates of street intersections from the dataset I downloaded from OpenStreetMap Website.

I am not that good at programming, so it's kind of hard for me to make the algorithm to work.

Thanks!

(12 Nov '13, 19:16) ShengLin lynn

then I really can only recommend that you get more familiar with Routing on OSM based data in general.

See https://wiki.openstreetmap.org/wiki/Routing ... there are links to some opensource projects dealing with that topic. Have a look how they do their basic data preparation.

Or ask at http://gis.stackexchange.com additionaly.

(13 Nov '13, 17:01) stephan75

Thank you! I will do.

(13 Nov '13, 17:47) ShengLin lynn

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