tcumulus

The Netherlands might not have the most extensive or fast rail network, but it's frequencies are pretty much unbeatable. In some places it runs more as a metro network than a heavy rail one. This visualisation shows that nicely!

It's not comprehensive. More than 75% of the passenger lines are missing in Belgium. I imagine this is the same for many other countries, especially the ones with a lot of passenger service.

Indeed, you can imagine this as some sort of advanced physics-based interpolation of various measurements (land stations, satellite data, ...) to fill in every cell in a latitude-longitude grid. This is not only used for ERA5 (training data for the models), but also to determine the initial conditions for every grid cell which are used to roll out the forecast. So AI weather models depend greatly on the NWP/physics used in for reanalysis and initial conditions. That being said, there is also research being conducted in training models straight from the raw data (weather stations, satellite, ...), thus bypassing the "interpolation" step.

Well if you count every minor service outage which maybe 0.1% of the users are non-critically affected by, you quickly get to 0.6%. So, this doesn't really tell you anything.

New book by Eric Riess (writer of the Lean Startup) came out today. Haven't had the chance to read it yet, but certainly sounds interesting.

Excerpt from the Amazon page: "In Incorruptible, Ries reveals the hidden forces that cause even great organizations to drift from their values and shows how to design businesses that can withstand that pressure. Drawing on two decades of work with founders, CEOs, and investors around the world, offers the blueprint for “mission-locked” organizations that can grow, prosper, and endure without losing their soul."