[iRail] train statistics
pieter.colpaert at gmail.com
Tue Jan 25 01:05:19 UTC 2011
We will announce the location tomorrow (we hope) and send the official
invite. The event will start at 7pm.
On Tue, 2011-01-25 at 01:55 +0100, Louis de Decker wrote:
> hi guys,
> quick question: have you defined a place/hour for the meetup on 2/2 ?
> Le 24/01/11 21:53, Pieter Colpaert a écrit :
> > Hi Jonathan,
> > On Mon, 2011-01-24 at 15:46 +0000, jonathan orban wrote:
> >> What about recording all the data generated by infrabel? I would see 3
> >> direct applications that would be very valuable for all travelers:
> > Yes, that's one of our plans for February. You summed up exactly what we
> > are going to do. The timeframe that I see is that we should go 'alpha'
> > in March. We will provide historical data through the same API and same
> > calls. At this moment when you search for< +-2 weeks it will generate
> > an error message.
> > The database that we are going to set-up will be available to use for
> > anyone. We will also ask treinvertragingen.be for their data of the past
> > 2 years.
> > Are you interested in helping?
> >> Questions:
> >> Is it allowed to record such data?
> > Yes. The data according to the second database law is not copyrighted.
> >> How difficult would that be technically?
> > It needs a lot of thinking: what needs to be saved into a database? Only
> > the realtime information of that day? And does that need to be saved per
> > hour/per minute or per vehicle that day? We don't need to save the
> > static data for each day since that data doesn't change every year. We
> > do however need to take into account that this static data changes in
> > 2013 and has already changed a couple of times in the past;
> > This is an engineering problem for February and I'm sure we will figure
> > this out. As we have already written the real-time API, gathering the
> > information itself is not difficult at al.
> >> How much data would that generate per day?
> > Needs to be checked. But if we would save the delay of each train
> > between two stations, multiplied by the number of trains and stops - 1
> > the trains make, you can get an idea ;-)
> >> How much would it cost to record the data and save it on a server?
> > We will do that with the NPO (vzw/asbl). So it will not cost you
> > anything.
> > Pieter
> > P.S. Don't forget the second of February we are doing an iRail meetup.
> > If then you want to support iRail you can become a member of the NPO
> > (working member: for free and we protect your copyright, supporting
> > member: annual fee)
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