0. Real-time data in Prague Integrated Transport
Zbyněk Jiráček - ROPID

1. About Prague Integrated Transport

2. About Prague Integrated Transport

3. About Prague Integrated Transport
Unification of multiple transit operators
Single fare conditions (one ticket for the whole journey)
Timetables, route planners
Customer support
Data…

4. The Data
Timetables
Current vehicle positions …

5. Departure tables
Real predictions of departures from a particular stop based on current position of the vehicle

6. Departure tables Web service for predicting departures

7. XML contents
One o record represents a single departure of a single vehicle
stan – platform identification
alias – line identification
smer – direction (stop name)
odj – regular departure (from timetable)
sled – whether the current position of the vehicle is known
zpoz – predicted delay (equals to current delay from the last stop)
np – indicates low-floor vehicle
dd – mean of transport (1 = metro, 2 = tram, 3-5 = bus, 13 = train)
smer_c – direction (stop ID)

8. Stop identification XML document listing all stops

9. Stop identification One z record represents one platform
n – name of the stop (full)
cis – ID of the stop (all platforms of the same name have the same ID)
tp – tariff zone
sx, sy – coordinates in S-JTSK
lat, lon – GPS coordinates of the stop
sta – identification of the platform within the stop
nu – unique name

10. Interconnection with other data
Stops in GTFS are identified by U and Z pair
Attributes u and z in stops.xml
Stop names match in 99 %
Some stops may have same name though they are far away from each other
Line “aliases” match to line numbers (“Lxxx” in GTFS)
Regular departure times match in 99 %
Except for metro lines (rounded to minutes)

11. Limitations No vehicle position data from Prague Transit Co.
Predicted delay always zero
zpoz=“0” sled=“false”

12. Limitations Weak server
Please do not use the web service too extensively
Only for single queries
Not intended for repeated batch download

13. Thank you for your attention
Zbyněk Jiráček, ROPID