SUMO, Open Street Maps and NS2 - A Real Traffic Simulation

SUMO is the Simulation of Urban mobility software that enables to simulate the road traffic. Open Street map (www.openstreetmap.org)  provides the xml based .osm file for any part of the world selected through their website. #openstreetmap

#SUMO can able to convert the osm file to its native xml file. The post tells you the simulation of a real traffic network and how it is ported to #ns2 for network animation and tracing.

Step 1: Prerequisites

  • SUMO to be installed - in my case I installed sumo this way 
sudo add-apt-repository pap:sumo/stable
sudo apt-get update
sudo apt-get install sumo sumo-doc sumo-tools

Also, Download the sumo source sumo-src-0.26.tar.gz from this link and unzip or untar it to the home directory (/home/pradeepkumar). There are some python files that are needed to generate random trips and to export xml files to tcl files. the commands sumo, sumo-gui will run only the graphical simulation.
Once the software is unzipped, set the SUMO_HOME in the environment, Open /home/pradeepkumar/.profile (for Linux Mint) and /home/pradeepkumar/.bashrc (for Ubuntu) and give this command (in my case the home is pradeepkumar, it might be different for you)
export SUMO_HOME=/home/pradeepkumar/sumo-0.26.0 

Step 2: Steps to create a Traffic

  1. Open browser and type http://www.openstreetmap.org and search a particular area and click export in the top. 
  2. click "Manually select an area" and select the area (as shown in the video below) and click export again (it will download a file called map.osm, rename this file as per your convenience)
  3. Open the terminal and type the commands one by one (assume my file name is guindy.osm, so i maintain the same file name guindy for all the xml files)
$] netconvert --osm-files guindy.osm -o guindy.net.xml

Now, copy the osmPolyconvert.typ.xml from the $SUMO_HOME/data/typemap/ and copy it to the folder where you put all the files. 


$] polyconvert --osm-files guindy.osm --net-file guindy.net.xml --type-file osmPolyconvert.typ.xml -o guindy.poly.xml



$] python $SUMO_HOME/tools/randomTrips.py -n guindy.net.xml -r guindy.rou.xml -e 100 -l

Now, create a new file (to be named as guindy.sumo.cfg) and paste the following lines 

 <configuration>
     <input>
         <net-file value="guindy.net.xml"/>
<route-files value="guindy.rou.xml"/>
         <additional-files value="guindy.poly.xml"/>
     </input>
<time>
<begin value="0"/>
<end value="100"/>
<step-length value="0.1"/>
</time>
 </configuration>

Now you can run the above using sumo-gui guindy.sumo.cfg (now you can see as per the following screenshot)
sumo
SUMO