One of the authors of stplanr recently wrote a survey paper about all of the open source transportation software around: https://github.com/Robinlovelace/open-g

One of the authors of stplanr recently wrote a survey paper about all of the open source transportation software around: https://github.com/Robinlovelace/open-gat https://github.com/Robinlovelace/open-gat Between AccessMap (https://www.accessmap.io/ https://www.accessmap.io/), GOAT (https://www.open-accessibility.org/ https://www.open-accessibility.org/), Streetmix (https://streetmix.net/ https://streetmix.net/), SharedStreets/CurbLR (https://sharedstreets.io/ https://sharedstreets.io/), A/B Street (https://abstreet.org/ https://abstreet.org/), MATSim (https://www.matsim.org/ https://www.matsim.org/), SUMO (https://sumo.dlr.de/ https://sumo.dlr.de/), and all of the R packages from the ITS Leeds group (https://github.com/ITSLeeds https://github.com/ITSLeeds), it really feels like an ecosystem for open source transportation planning is coming together. If there are any planners reading, what other pieces of the puzzle are missing?