17th Nordic Seminar on Railway Technology
Tammsvik Herrgrd
3-4 October 2012
Assessment of Track Geometry Quality:
TSI, EN Standard and BVF/BVS
Martin Li
Trafikverket
Anlggningsutveckling/Ban- o vgsystem
Sprsystem
2012-10-02
Outline of the Talk
Track geometry quality: basic parameters and definitions
TSI requirements and the series EN 13848
Old BVF 587.02 and new BVS 1860.50
Consequence analysis
2012-10-02
Track geometry quality: what is it about?
Normal track
Track shift after a test run (O. Polach)
Track geometry = theoretical value + defect Note: sprlge inte sprgeomtri
Track geometry quality: (EN 13848-1:2003+A1:2008)
Definition: assessment of excursions from the mean or designed geometrical
characteristics of specified parameters in the vertical and lateral planes which give rise to
safety concerns or have a correlation with ride quality
2012-10-02
Track geometry quality: 5 basic parameters
Each rail has 2 degrees of freedom
Equivalently 4 parameters: (longitudinal) level, alignment, track gauge and
cant (cross level)
An additional 1: twist, the difference in cant over a given length
2012-10-02
EN 13848-1: Longitudinal Level (LL) (Hjdlge)
Definition: Deviation Zp in z-direction of consecutive running table levels on any rail,
expressed as an excursion from the mean vertical position (reference line), covering the
wavelength ranges stipulated below and is calculated from successive measurements
Three wavelength ranges:
D1: 3 m < 25 m (1 m < 25 m in Sweden)
D2: 25 m < 70 m
D3: 70 m < 150 m (for long wavelength defects, speeds > 250 km/h)
2012-10-02
EN 13848-1 Track Gauge (Sprvidd)
Definition: Track guage, G, is the smallest distance between lines perpendicular to the
running surface intersecting each rail head profile at point P in a range from 0 to Zp below
the running surface. Zp is always 14 mm system
In the situation of new unworn rail head the point P will be at the limit Z_p below the railhead
Wavelength range is not applicable
2012-10-02
Norms for Track geometry quality
Trafikverket
BVF 587.02 Sprlgeskontroll och kvalitetsnormer - central mtvagn STRIX
BVF 541.60 Sprlgeskontroll med mtfordon och kvalitetsnormer
BVS1586.50 Banverbyggnad - Sprlge - Krav p sprlget vid nybyggnad,
reinvestering/upprustning, underhll och drift
CEN
EN 13848-1 Track geometry quality - Characterisation of track geometry
EN 13848-2 Track geometry quality - Measuring systems - Track recording vehicles
EN 13848-3 Track geometry quality - Measuring systems - Track construction and maintenance machines
EN 13848-4 Track geometry quality - Measuring systems Manual and light weight devices
EN 13848-5 Track geometry quality - Geometric quality levels
EN 13848-6 Track geometry quality - Characterisation of geometric quality
TSI
TSI HS INF & TSI CR INF
Others
EN 14363, UIC 518, 518-1, 518-2 , 519 for Vehicle running dynamics
EN 13231-1, 13231-2 for acceptance of works
2012-10-02
TSI CR INF and EN 13848-5
TSI CR INF
Determination of IAL, IL and AL:
Immediate Action Limit (IAL): the value, which, if exceeded, requires taking measures to
reduce the risk of derailment to an acceptable level. This can be done either by closing the line,
reducing speed or by correction of track geometry.
Intervention Limit (IL): the value, which, if exceeded, requires corrective maintenance in order
that the immediate action limit shall not be reached before the next inspection.
Alert Limit (AL): the value, which, if exceeded, requires that the track geometry condition is
analysed and considered in the regularly planned maintenance operations.
IAL-values for twist, track gauge, cant, but not for longitudinal level and alignment
IAL-values for mean track gauge over 100 m for controlling equivalent conicity
EN 13848-5
Same definitions for IAL, IL and AL
Normative IAL-values and informative IL- and AL-values for all parameters
Note: both TSI and EN are under revisions.
2012-10-02
TSI CR INF and EN 13848-5: Track gauge, Example (1)
TSI gives limit values only for IAL
EN gives limit values for IAL (normative), and also for AL and IL (informative)
TSI-values are slightly more strict than EN-values for IALmin
2012-10-02
TSI CR INF and EN 13848-5: LL in D1 and D2, Example (2)
No TSI-values
IAL is normative, while AL and IL are informative
AL and IL are given as a range, min-max (or low-high)
D2 25-70m, only for V>160 km/h
10
2012-10-02
BVF 587.02:
Not consistent with TSI and EN-norm!
Determination of A-, B- and C-fel:
Kolumn A: Anger tillten storlek p kvarstende fel i nyjusterat spr, ..
Kolumn B: Anger riktvrden fr underhll. Sprlgesfelen br tgrdas i de flesta fall innan de ntt denna storlek.
Kolumn C: Fel som verskrider denna grns skall tgrdas snarast. Intill dess felet tgrdats vervgs
hastighetsnedsttning beroende p felets storlek, sprlget i vrigt och andra frhllanden.
IAL-values only for twist and track gauge (max), Ursprningsfaliga fel
No requirements for mean track gauge over 100 m, speed classes are different, and so on
11
2012-10-02
BVS 1586.50 Banverbyggnad Sprlge tgrdniver
Notes:
to replace BVF541.60 and
BVF587.02
under remiss now,
2012.10.09
comments are welcomed to
Hkan Tirus, Sprsystem
12
2012-10-02
Banverbyggnad Sprlge, UHabs-HT 2012-09-24
BVS 1586.50: Limit values for LL, example (1)
11.2.2.1 Punktfel med vglngd 1-25 meter
I tabell 11.2.2.1 anges de grnsvrden fr hjdlgets punktfel som gller
fr de olika tgrdsniverna. Vrdena gller fr vglngdsomrde D1, dvs.
1-25 meter.
Tabell 11.2.2.1 Grnsvrden fr hjdlgets punktfel, vglngd 1-25 meter
Hjdlge fr respektive rl, punktfel i +/- mm, vglngd 1-25 meter
13
2012-10-02
Hastighetsklass
Sth (km/h)
NYTT
NYJUST
PLAN
UH1
UH2
AKUT
H5
200<V250
16
H4
160<V200
20
H3
120<V160
10
23
H2
80<V120
10
12
26
H1
40<V80
10
12
16
28
H0
V40
12
15
25
28
Banverbyggnad Sprlge, UHabs-HT 2012-09-24
AKUT, UH2, UH1 in comparison with IAL, IL and C: LL in D1, ex. (1)
14
Nya kraven i BVS1586.50 enligt TSD och EN, AKUT = IAL
UH1 och UH2 r under gamla C
UH2 r nra ILmin i EN13848-5
2012-10-02
Equivalent Conicity vs Track Gauge: UIC ECT-project results
Mlarbana Bdl444N
23 km, 200 km/h
Kn-Vn
Dalabana Bdl333
32 km, 160 km/h
AvKy-Blg
15
2012-10-02
Vstra stambana
Bdl416N
48 km, 195 km/h
K-Hpbg
Malmbana Bdl111
29 km, 120 km/h
Kmb-Rgn
Analysis of isolated defects (1): track gauge
Line
Bdl
Vstra 512N, L-F
Track (km) Speed class PLANmin (m) UH1min (m) UH2min (m) AKUTmin (m) PLANmax (m) UH1max (m) UH2max (m) AKUTmax (m)
H4
3099
1086
333
19
98
Mla 444N, Kn-Vn 78
H4
4384
1757
599
100
Sdra 505U,by-My 85
H4
16486
14296
10362
1937
3532
1103
171
16
2012-10-02
114
Analysis of Isolated Defects (2): mean track gauge 100 m
Line
Bdl
Vstra 512N, L-F
Mla
2012-10-02
114
444N, Kn-Vn 78
Sdra 505U,by-My
17
Track (km) Speed class NYTTmin (m) UH1min (m) UH2min (m) UH1max (m) UH2max (m)
85
H4
31428
7727
325
H4
16411
8172
592
172
H4
31796
19187
10405
309
171
Analysis of Isolated Defects (3): LL and AL
Line
Bdl
Vstra 512N, L-F
18
Track (km) Speed class PLAN-LL (m) UH1-LL(m) UH2-LL (m) AKUT-LL (m) PLAN-AL (m) UH1-AL(m) UH2-AL (m) AKUT-AL (m)
H4
266
78
27
256
64
Mla 444N, Kn-Vn 78
H4
210
38
12
236
55
Sdra 505U,by-My 85
H4
623
178
54
332
95
15
2012-10-02
114
prEN 13848-6: Assessment of track geometry quality based on
standard deviations: ETQS-results for European networks
19
2012-10-02
Thank you for your attention
Martin Li
Martin.li@trafikverket.se
20
2012-10-02
