Hacker Newsnew | past | comments | ask | show | jobs | submit | zeristor's commentslogin

Thanks, this link therein looks very impressive, about the usage of space for parking, and the roads needed to connect them too:

https://www.racfoundation.org/wp-content/uploads/2017/11/spa...


Looks good.

London, Paris, Copenhagen, Rome, Madrid?

I guess it takes a while to add each new one in.


tysm! Yeah I've got a bit of a backlog, as each set of data for each system needs a deep-dive on how the system exposes it programmatically, then need to do tests and some studying on each to build cars,timelines, etc. Toronto is on the list, if there's any in particular you want, file an issue on gh, and I'll do my best to get it added in a timely manner. https://github.com/wafflethief123/publictransit-systems/issu...

Working in the industry: this is a can of worms that you might regret opening, because of simply how completely insane so many of the systems there are. I've seen cities repurpose text fields in otherwise perfectly standard formats because they needed a way to indicate that the bus was {insert any absolutely insane situation}, and not parsing that field means that the data doesn't make sense.

Your best bet for most of Europe are the open data platforms. Example for France: https://transport.data.gouv.fr/. There's soooome standardisation around a few formats:

GTFS, Netex, SIRI along with their various extensions (like GTFS-RT for realtime data), etc. Just parsing these (which is already a large undertaking in and of itself) should get you covered for a bunch of networks.

Oh, also, much of the data you'll find, especially from smaller cities or regions, is awful. You're going to be told that the line icon is white, on white text, and that's actually perfectly normal because actually their bus header is from an obscure system from former Yugoslavia that actually interprets "0xFFFFFF" as black when on layer 1. Good luck!


Looks good, is there anything more?

I didn't get you there, I suppose you could try it out and let me know what you're feeling is missing?

https://github.com/Ataraxy-Labs/opensessions


Thanks, yes I could see the link

Is this set up for a remake of the Italian job?

Were electric minis used in this heist? Was the Turin traffic system hacked?

Were only the doors blown off (come on baby light my fire)?


Don’t KitKats have AoP status and can only authentically be made in York?

The craze for Japanese KitKats being an exception.

Having bought a triple pack of 7 double finger KitKats in the nineties and eating them all in 20 minutes I can’t even look at a pack anymore.


“Use the KNOWLEDGE Luke, always”

There are grid scale batteries on the UK grid. Surely they’re being used.

One could work out what the discrepancy between consumption and production during the day to infer the battery discharge rate, but I don’t think there’s anything there…

There has been talk, seemingly power generation dispatch a year or so ago was do e by phoning up the power station and saying “More amperes please Mr Woodbine”.

My understanding is this is being written to an automatic system which isn’t fully commissioned.

Grid battery owners a few years go were irate that they weren’t in the offing to sell power. But that must be resolved by now, since so much money is being invested in it.

Unless that is for non-grid power supply.


This presentation suggests that BESS is used to keep the frequency stable, and remove huge price spikes:

https://cigre.org.uk/web-cont1001/uploads/Integrating-Grid-F...

This suggests that there is evidence for these sort of issues somewhere else on the web.


I mean negative prices should diminish if there are batteries to charge on it.

“Performs its own peer review”

You just can’t do that, I mean the code might be different and this should be perhaps worded differently.

But a peer is someone expert but different.

I would have thought you’d have a few different other AIs set up in different manners to provide more independent insight.


If the LSST telescope, the Vera Rubin telescope, is in the Southern hemisphere, and the few Palomar surveys are in the Northern hemisphere their overlap will be reduced a lot.

I’m guessing as a sky survey goes if you can cover most of the sky one should have a large enough sample size.

But no one has discussed, they’re smart reporters it’s either common knowledge or they don’t think muddying the waters helps.

An LSST for the Northern hemisphere?

I guess not, I wouldn’t have thought there any good sites. But so much is being built in Chile it does miss out the the most northern bit.


Aren’t the copper coated nickel?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: