algorithmic modeling for Rhino



PedSim is a Grasshopper plug-in that runs simplified pedestrian simulation in Rhino modeling space in real time. It can be integrated in your Rhino workflow for master plan, public space, commercial and other architectural projects, accelerating design iteration and creating new opportunities for design automation.

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Members: 40
Latest Activity: Oct 18

Discussion Forum

PedSim Pro

PedSim Pro is here! If you use PedSim but feel it too limited, please check out Pro. …Continue

Started by Peng Wang May 30, 2020.

PedSim questions and feedback

Hi, everyone,Thank you for downloading PedSim! Over the past few years it has reached thousands of users. What do you like and dislike about it? Any questions?Continue

Started by Peng Wang Nov 9, 2017.

Comment Wall


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Comment by Peng Wang on October 18, 2021 at 2:31pm

Hi Francesco, if you see any PedSim components missing in the gh definition, it's likely because you are using PedSim Pro's gha file and opening PedSim's example (or vice versa). It is also possible that you have PedSim 0.12 but the example is in 0.13.

Could you check which situation is true and fix it by getting the matching files? If you need more help please feel free to email me.

Comment by Francesco Catemario di Quadri on October 18, 2021 at 2:03pm

Hi Peng, thank you! Exactly, those. However, I did a little digging and I found the .gh files of those examples from the "buy me a coffee" i did in January, they were all bundled in a google drive folder/zip attached to the confirmation email. I opened them but now a bunch of elements are missing in the pedsim when i open the gh files. What has changed? 

Comment by Peng Wang on October 18, 2021 at 8:49am

Hi Francesco,

All PedSim examples are still available. You can download them here:

There is a public square example in this video:

It's for PedSim Pro, just the video, no .gh files. I hope this is what you need.

Comment by Francesco Catemario di Quadri on October 18, 2021 at 8:32am

PedSim is amazing! Have been playing with it for almost a year. However I had a question, i changed PC and lost access to any files I played with previously. But I remember there were other example files previously with a public square and all. Are those still retrievable/accessible somewhere online? I noticed the section on the site with examples has only new examples. Thanks!!

Comment by Carlos Rios on March 23, 2021 at 12:25pm

Thanks Peng,

Will this feature come with an automatic update, or will it require a manual install of some kind?

Also, can one use transparent obstacles to achieve the "waiting line" mentioned earlier as a reliable alternative approach until the feature is released?



Comment by Peng Wang on March 23, 2021 at 10:28am

Hi, Carlos, this feature is coming soon in PedSim Pro.

Comment by Carlos Rios on March 23, 2021 at 9:59am


I've been using PedSim for a couple of days now and have been able to set up my desired scenarios with some success. One thing that I am not sure about is how to make people wait and move in a structured line like one sees in airports waiting for a free ticket booth. I have been able to have people access the ticketing counters, but they tend to bunch up.



Comment by Peng Wang on September 29, 2020 at 7:10pm

The 3D people is a Grasshopper trick. You can download the examples or do it yourself:)

Comment by Monkey on September 29, 2020 at 7:08pm

Thanks Peng,

It works Perfectly! Thank you! One quick question, on your webinar, I saw you can see 3d people moving along the space. but I don't know where to turn on the 3d people for V0.12.3 version, my people are still flat dot. Is that feature only for PedSim Pro?

Comment by Peng Wang on September 29, 2020 at 6:58pm

Hi, Monkey, you need to connect "Settings" component to the "Engine" and turn on "EnableTrace"


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