Not bad, but I just two trains collide into a building. A bit frightening at first.
Berlin public transport in real time
91–100 of 143 posts
Re: Berlin public transport in real time
#92Real time public transport in Vilnius: http://stops.lt/vilnius/#vilnius/map/en Select this icon: http://stops.lt/vilnius/_images/vehicles.gif , on the right, to show vehicles as bubbles. It is real time from GPS transmitters inside the vehicles.
Busses update their location only every 1 minute and website just sends a get request every 5 seconds.
Not what I would call realtime.
Re: Berlin public transport in real time
#93Open-source platform that provide real-time info for Atlanta, Puget Sound, Tampa, York, or New York City. http://onebusaway.org/
Re: Berlin public transport in real time
#94Looks like they are just interpolating the location between two stations using the expected arrival times. If no expected arrival times are available, they simply simulate the location to match the planned arrival times. So this is not really "live". > VBB-Livekarte zeigt berechnete Positionen der Fahrzeuge zwischen zwei Stationen; falls kein Live-Fahrplan vorhanden, dann Position gemäß geplanten Fahrzeiten
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Re: Berlin public transport in real time
#95Re: Berlin public transport in real time
#96Neat. In Pittsburgh, I think all the buses now have GPS and report their location. There's an app that displays the locations of buses on the routes you select.
Alas, I've seen several cases in which the bus's labeling is in error, with the driver calling out the correct route to people at bus stops. Sadly that doesn't affect the reported route or correct what the app displays.
Re: Berlin public transport in real time
#97Cool idea for the hackers out there:
Use public transport data from all the sources below, overlap them on Google aerial view, change the dots to 'top view' images of buses, and let the users follow buses in 'real time' across 'real life' map. It'll be like a real-time satellite imagery!
Also: keep the directions in mind. This one (posted downthread) shows where the buses are pointed too. http://traintimes.org.uk/map/london-buses/#41
Link me if someone decides/has done this. I might be able to contribute
Re: Berlin public transport in real time
#98Earlier quoted context omitted.
Ah. So no use in real-time if there is an unplanned delay as the map will show that the train just went past you when in fact it didn't. Shame.
Not really. As far as I understand the technologies (and I assume that Berlin does the same thing as every other city-user), a precise ("physical") GPS position is usually not reported (although newer systems do that as well), but a position at a "logical" map is. In case of buses, this usually means "left the previous stop at $xx:$yy, with $zz seconds of delay; reported average speed is normal for this area, so expe…
My understanding is that with newer CBTC signalling systems--not sure if Berlin is using that--the trains know pretty much exactly where they are on the track, along with the positions of all other trains, speeds, braking distance, etc. This allows the trains to run closer together than they could using fixed block signalling technology. It's not required for full automation, but it makes full automation relatively simple.
The L train in New York is an example of where this is installed. My understanding is this means the two staff on the train are redundant; the driver pretty much just provides acknowledgement to the train to keep doing its thing, and the conductor only opens and closes doors and makes announcements (if that). They would run with only a single staff member except for union rules.
Re: Berlin public transport in real time
#99Earlier quoted context omitted.
It goes beyond that in the Netherlands. A lot of bus lanes have their own traffic light system -- they have very small lights to show when they can go or stop. :)
This also exists in Germany https://de.wikipedia.org/wiki/%C3%96PNV-Bevorrechtigung (Sorry, no english version available)
These exist in Britain, but are only used for trams.
http://www.ukmotorists.com/tram_signs.asp
For buses, there would be a normal traffic light controlling only a bus lane, usually labelled with the blue buses only sign. It's not very common, but I know a couple of cases in London.
Re: Berlin public transport in real time
#100Bay Area transit is horrible at providing GPS positional data in APIs.