++ "Associates a context-free quantity to an observable property. While possible, we advise users to use quantifications associated with a context and validity: see Observation package."
++ "http://www.railsystemmodel.org/schemas/Common"
-- "http://www.railsystemmodel.org/schemas/RSM1.2beta/Common"
++ "http://www.railsystemmodel.org/schemas/NetEntity"
-- "http://www.railsystemmodel.org/schemas/RSM1.2beta/NetEntity"
++ "http://www.railsystemmodel.org/schemas/Signalling"
-- "http://www.railsystemmodel.org/schemas/RSM1.2beta/Signalling"
++ "http://www.railsystemmodel.org/schemas/Track"
-- "http://www.railsystemmodel.org/schemas/RSM1.2beta/Track"
++ "ISO19148:2012 : LR_AlongReferent. attributes (or references to) measure, and measure from previous (or: to next), are not needed, because anchor points, being spot locations, are expected to be provided with coordinates."
-- "Reference point for linear referencing, corresponding to a kilometric post or milepost. Typically associated with a chainage discontinuity."
++ "A 2-D or 3-D physical or virtual bounded space, such as a screen or a sheet of paper on which the positioning takes place. The name can imply size and unit information, e.g. A3 landscape for 420 mm wide x 297 mm high."
-- "A 2-D or 3-D physical or virtual bounded space, such as a screen or a sheet of paper on which the positioning takes place. The name can imply size and unit information, e.g. A3 landscape for 420 mm wide x 297 mm heigh."
++ "Cartesian coordinates. The x,y, z units are defined by the associated positioning system. The user may retain only elevation (z) if needed, e.g. in conjunction with linear coordinates (distance along)."
-- "Cartesian coordinates. The x,y, z units are defined by the associated positioning system. "
-- "Cartesian coordinates. The x,y, z units are defined by the associated positioning system."
++ "From W3C: Description of date and time structured with separate values for the various elements of a calendar-clock system. The temporal reference system is fixed to Gregorian Calendar. The reference to TRS may be left out if obvious from the context."
++ "Quantity of type gradient, slope, ramp, inclination expressed as the tangent of rise/fall over distance. Uphill is positive, downhill is negative."
-- "Quantity of type gradient, slope, ramp, etc. Uphill is positive, downhill is negative."
-- "A line of reference combined with a single number (linear abscissa) allows positioning within a railway network. Often called chainage. The start- and end-measures represent the length of this line. The units of linear abscissa are the same as the start and end-measure. "
-- "A line of reference combined with a single number (linear abscissa) allows positioning within a railway network. Often called chainage. The start- and end-measures represent the length of this line. The units of linear abscissa are the same as the start and end-measure."
++ "Union=0;Derived=0;AllowDuplicates=0;Owned=0;Navigable=Non-Navigable;"
-- "Union=0;Derived=0;AllowDuplicates=0;Owned=0;Navigable=Navigable;"
++ "Union=0;Derived=0;AllowDuplicates=0;Owned=0;Navigable=Navigable;"
-- "Union=0;Derived=0;AllowDuplicates=0;Owned=0;Navigable=Unspecified;"
++ "Mapping to a linear location on the topology. The linear location can be associated with position in one or more coordinate systems, including elevation."
-- "Mapping to a linear location on the topology. the linear location can be associated with position in one or more coordinate systems."
++ "Mapping to a linear location on the topology. The linear location can be associated with position in one or more coordinate systems."
++ "A spot location where the cant applies."
-- "The spot location where the cant applies."
++ "Nano The nano level (for railway) is the level where track geometry and, in particular, curvilinear abscissas would be in agreement with on-board odometry. It is used for detailing crossing geometry, for instance. The nano level could be described as a properly attributed surveyor's map, including topological properties of the rail network in the finest possible granularity. Use cases for the Nano level would include interlocking and asset management."
-- "Nano The nano level (for railway) is the level where track geometry and, in particular, curvilinear abscissas would be in agreement with on-board odometry. It is used for detailing crossing geometry, for instance. The nano level could be described as a properly attributed surveyorXXXXXXXXs map, including topological properties of the rail network in the finest possible granularity. Use cases for the Nano level would include interlocking and asset management."
++ "Linear Referencing Method values according to ISO 19148 definitions."
-- "Linear Referencing Method values refer to ISO 19148 definitions."
++ "linear_scissors DE: Schere (lineare-)"