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Welcome
Owner: Sytse BisschopMarch 2016Status: Final
Tender WI&VS (Switch measurement and video inspection)
Switch model andapplication of norms: AL, IL and IAL
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Short introduction• Two suppliers of loaded switch (and crossing) measurements• Measurements made for the following purposes:
� In control statement (safety)� Contract-management of ProRail with maintenance contractor� Long term maintenance� Contractor (for medium and short term maintenance)
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• Not operational yet, due to:� It’s new and ambitious� Combination with Video Inspection� Processes by the contractor� Problems with bulk measurements� Complex process (see next slide)� …
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Contractor
e.g.:- BAM- VolkerRail- Strukton- …
Measurementcompany
e.g.: - Eurailscout- VolkerRail- …
ProRail
Short introduction
• Measurements are made by contracted company• Data check is done by ProRail (is the data valid? Is the data delivered according to the contract and specifications?)• Release data (through Irissys) to contractors, etc.• Contractors judge the infra
Process measurements in the Netherlands
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Measurement Check data Release data Judge infra
RegionsRegionsRegions
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sendexceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Measurement and output specifications
• At least the current measurement• Compatible with current methods (WMP)• Ready for the future
• Results measurment specifications:• 71 parameters for each switch-path• Each 30 to 50 mm, 37 parameters• Each 30 to 50 mm, measured profile
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Model - switches to be measured
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SAP
Equipment-nr
Drawing-nr
Switch-nr
Geocode
Kilometreage
Switch classification
Defines measurement interval
Unique identifier
Refer to switch design
Identifier
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Model – Data model
• Reference point for each path:�Toe tip of first closed switch rail
OR�Mathematical point for crossings
•Model contains (digitized drawing):�Type�Number of objects�Lengths of objects/areas�Positions related to reference point (calculated):
•Begin & End•Theoretical points•…
Reference structure
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Model – Data model
• Reference point for each path:�Toe tip of first closed switch rail
OR�Mathematical point for crossings
•Model contains (digitized drawing):�Type�Number of objects�Lengths of objects/areas�Positions related to reference point (calculated):
•Begin & End•Theoretical points•…
Reference structure
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Norms on switches
• Norms are applied in IRISSYS• Norms are defined by ProRail and given in csv format• Goal: Introduce the norms in the model
Background
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Tekeningnr
Ontwuitw Gang
Voorschrift_code_v
Geldigheid_ van_datum
Bron_postie_gemeten
Kolom_positie gemeten_van
Kolom_positie gemeten_tot
Positie_van
Positie_tot
Gebiedsnaam
Parameter Vmin Vmax SW+ SW- BW+ BW- VW+ VW-
Nominaal
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee -10486 -6886
Aansluitgedeelte 1
Spoorwijdte 0 40 26 -6 35 -91435.0
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee -10486 -6886
Aansluitgedeelte 1
Spoorwijdte 41 160 20 -5 30 -81435.0
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee -10486 -6886
Aansluitgedeelte 1
Spoorwijdte 161 200 18 -4 28 -71435.0
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee 29396 32996
Aansluitgedeelte 2
Spoorwijdte 0 40 26 -6 35 -91435.0
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee 29396 32996
Aansluitgedeelte 2
Spoorwijdte 41 160 20 -6 30 -81435.0
413366NvtLinks-Rechts
OHD00022-1 V007 incl Hanzeln 1-1-2015Nee 29396 32996
Aansluitgedeelte 2
Spoorwijdte 161 200 18 -4 28 -71435.0
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Norms
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Complexity of digitizingand applying norms
Current norm
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Norms: Gauge in crosssing section
1. Design value track gauge
2. Local speed up to 40 km/h
3. Crossing section with non movable parts
4. Frontpart of crossing
5. Diverging branch
6. Type switch: diverging, equal split, inside single/double slip
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Not well defined
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The IAL for track gauge of the front part of the crossing section (if it’s not movable) for diverging branches of switches with a local speed up to 40 km/h is equal to a nominal value of +12 or -7 mm.
Model - norms
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Conditions
Movable crossing
Number of tongues
Radius R
Areas
Full profile rails
Crossing section
Guard rail
Parameter
Gauge
Wear hor left
Wear hor right
Switch/path
All diverging
Normal straight
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Model - norms
• Each path of a switch drawing is evaluated• 308 switch drawings lead to 87479 lines in csv
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Parameter Type Path type Condition Area Design value
Track gauge All Diverging Non-movable Crossingsection
GAUGE_CROSSING
Horizontalwear
Simple Straight - Full profile -
Speed from Speed to AL- AL+ IL- IL+ IAL- IAL+
0 40 -5 10 -7 12
41 160 -5 6 -6 8
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Model - norms check
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Model - norms check
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Validation of results411508 GW Rechts, path: right
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Model
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Spoortakken
Switch-nr
Geocode
Kilometreage
Local speed
2. Local speed up to 40 km/h
Switch drawings
Drawing nr
Path
Type
Nominale values
Distances
WMP (discrete points)
Drawing nr
Path
Name
Parameter
Location
SAP
Equipment-nr
Drawing-nr
Switch-nr
Geocode
Kilometreage
Switch classification
Track geometry data model
Norms
Drawing nr
Path
Area
Parameter
Speed range
AL, IL, IAL (all - and +)
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
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Irissys - BBMS
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Irissys - BBMS
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Irissys - BBMS
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Irissys - BBMS
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Switches and crossings measurements
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Measurement Check data Release data Judge infra
Sent exceedings
Output specifications
Measurementspecifications
Switches to bemeasured
Discrete (WMP)Continuous
Define qualityrules
Routing train
Data model
Apply norms
Reports etc
Questions?
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Discussion points
• Judgement of data quality and switch quality cannot be split up• The judgement of safety of a switch can and must be done on a much more intelligent way with continuous data
• New norms are needed for loaded switch measurements
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