Dev:CommonDataTypes

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This page is used to collect all data types used in the schemas. The target is to harmonize and re-use data types throughout the different schemas.


Simple Types

"Simple Types" are scalars based on integers or floating point numbers. The describe values like time, length or velocities. Vectors, lists (enumerations) or structures are not covered in this section!


Scalar's Name Scalar's Unit Encoding Used in ... Comment
IS IL RS TT
Position, distance, radius km float (0.3) x May occur as absolute or relative Position along the track, as abs. or rel. offset, as distance between two points, as radius or as superelevation
Latitude, Longitude, Altitude ? float x Geographical position. The used coordinate system is still under discussion.
UIC-Number (none) integer x UIC-No. which belongs to a <<Owner>>.
Voltage V integer x
Frequency Hertz (1/s) float x
Gauge m (?) float (0.3) x
Weight kg float x
Axle Load ("meterload") kg/m float x Is this correct?
Speed km/h (?) float x Or did we agree on [m/s] in the last meeting?
Angle rad (has no unit) float x Should we really use radian instead of grad (2 Pi = 360 Grad)?
Country ID (for Balises) (none) integer x
Group ID (for Balises) (none) integer x
Point (Coordinates on a screen) pixel float x Used in the visualization part. Shouldn't the unit be integer?
Size (Screen size of an element) pixel float x Used in the visualization part. Shouldn't the unit be integer?
(name) (unit) (enc) (comment)
(name) (unit) (enc) (comment)

Arbitrary Values

Currently there are a lot of "free parameters" (mostly strings), which are not strictly typed. In order to improve the interoperability between railML-capable applications, these only loosely typed variables should be defined more strictly.

The following table lists the variables which can currently be assigned with arbitrary values:

Variable Type Used in ... Comment
IS IL RS TT
ID string x Occurs as infrastructureID, lineID, trackID
Owner Name string x
modeLegislative string x Part of operationModeType
modeExecutive string x Part of operationModeType
style (Power Transmission) string x Part of powerTransmissionType
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)
(name) (type) x (comment)