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Creating OD trips to routes with multiple vehicle types:

Run od2trips config with — — vtype typedist1

Run duarouter with — — keep-vtype-distributions true -d additional.xml — — vtype-output vtype.xml

Creating routes starting from fringes of the map and adding source, sink and via routes

Weights can be provided as to from where the source of the vehicle routes should be and where it should end. …

Downloading and using map that is bigger than the map export allowed on OpenStreetMap (> 50000 nodes)

Go to Geofabrik download server:

Browse to the continent >> country you want the map of

For example, I want the map of Stockholm Metropolitan Area (Sweden): Download sweden-latest.osm.pbf (

Download osmconvert.exe…

Note to self:

Hi there!

This is mostly a note of self about SUMO simulation learning and practise. However, I think it could help someone out there so posting it.

Learnings from the YouTube lectures by Rodrigue Tchamna:

Lecture 1:

  • SUMO + python installation
  • Manual (node + edge) network and route creation
  • And…

Note to self:

Hereafter, read SUMO as Sumo for the ease of reading.

Sumo is an open source, urban mobility simulation software tool developed by Institute of Transportation Systems, DLR Germany. The software facilitates evaluation of infrastructural and/or policy changes before implementing with in real life. Sumo allows explicit modelling of intermodal traffic…

in context of cyber-physical production systems

Our conventional production lines in factories are a twentieth century artifact. They were focussed on mass production of identical products. In today’s world, products are customized to the extent of personalization. Hence, the production process for each individual piece may differ.

Monolithic assembly lines are not the best suited strategy in today’s scenario where products are customized to the extent of personalization.

Such production systems can neither be fully automated, due…


Coming from India, I considered not finishing one’s studies in the prescribed duration a taboo. However, this notion was challenged by the outlook and freedom of work I got during my studies. Initially, I struggled with the idea of not completing my two-year course within the time period, but eventually…

This post is out of sheer reverence for books. Not meaning technical stuff, no office work. Books, books. Read just for leisure.

Of late I could not get time for myself. I was unable to get time to read books. My friend introduced me to audiobooks. I was skeptical about…

During development embedded systems often go wrong. At times, it is difficult to know which component is not working. I myself have faced these problems and have learnt somethings the hard way. A recent tweet by Patrick inspired me to write about my experience.

I have been working on…

So, this is also one of those side-projects which is fun. The project’s accessories include nut-bolts and a few electrical connections. Okay, so this is what it has.

The connections were generally simple. Two of them tricked me in the beginning. One was the orientation of motors attached to rear…


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