Advancements in Weigh-In-Motion Standardization

 
N
M
i
 
W
I
M
 
s
t
a
n
d
a
r
d
 
 
Cock Oosterman
  
NMi Certin
 
Hans van Loo
 
   
 
Corner Stone Int.
 
2
 
Topics
 
 Development
Background
Content
Test Procedures
 Implementation
3 Elements
Data Quality Management
Type Approval Procedure
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
Dutch, Independent, Test, Inspection,
Calibration and Certification Institute
1000 years of experience in
Global Legal Metrology
Certification & Acceptance
World wide Certification (OIML)
European Approvals (CE)
National Approvals (Enforcement)
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
Legal Applications:
 
Direct Weight Enforcement and Tolling by Weight
Metrology:
 
The measurements of the Weigh-In-Motion systems are
used 
directly
 as basis for fine/fee.
Benefits:
 
Most efficient way of weight enforcement and
tolling by weight without any impact on the traffic flow
Guarantee:
 
All issued fines/fees must be justified, hence
all
 measurements should always be within specification.
 
4
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 3 International Standards
COST-323, ASTM-E1318, OIML-R134
Each with own purpose and (dis-)advantages
Parts used in tenders
None
 for legal applications at high speeds
 Many National Standards
All different
Often not practical
Limitation for new applications
Barrier for market access
 
5
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
6
 
L
O
W
 
S
P
E
E
D
C
o
n
t
r
o
l
l
e
d
 
C
o
n
d
i
t
i
o
n
s
N
o
 
V
e
h
i
c
l
e
 
D
y
n
a
m
i
c
s
 
H
I
G
H
 
S
P
E
E
D
F
r
e
e
 
F
l
o
w
 
C
o
n
d
i
t
i
o
n
s
W
i
t
h
 
V
e
h
i
c
l
e
 
D
y
n
a
m
i
c
s
 
L
E
G
A
L
 
A
P
P
L
I
C
A
T
I
O
N
S
A
c
c
u
r
a
c
y
 
o
f
 
e
a
c
h
m
e
a
s
u
r
e
m
e
n
t
S
p
e
c
i
f
i
e
d
 
i
n
 
M
P
E
 
(
1
0
0
%
)
 
 
S
T
A
T
I
S
T
I
C
A
L
 
A
P
P
L
I
C
A
T
I
O
N
S
A
c
c
u
r
a
c
y
 
o
f
 
a
v
e
r
a
g
e
m
e
a
s
u
r
e
m
e
n
t
S
p
e
c
i
f
i
e
d
 
i
n
 
2
σ
 
(
9
5
%
)
4 Areas of WIM
L
e
g
a
l
LS
L
e
g
a
l
S
t
a
t
.
HS
LS
HS
S
t
a
t
.
 
D
i
r
e
c
t
 
W
e
i
g
h
t
 
E
n
f
o
r
c
e
m
e
n
t
 
S
t
a
t
i
s
t
i
c
s
 
o
n
 
T
r
a
f
f
i
c
 
L
o
a
d
i
n
g
P
r
e
-
S
e
l
e
c
t
i
o
n
 
E
n
f
o
r
c
e
m
e
n
t
 
T
o
l
l
i
n
g
 
b
y
 
W
e
i
g
h
t
 
?
?
?
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
NMi WIM Initiative (2016)
 Scope:
Automatic WIM-systems.
High Speed
 and Low Speed
Performance Requirements
Minimum Testing Procedures
 Application:
Technology Independent
Legal
 and Statistic Applications
International use, free of charge
 
7
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
NMi WIM Initiative
 
International Expert Group:
Different Manufactures
Different Technologies
Legal Metrology
> 100 year experience
 
Balance between:
Theoretical requirements
Practical conditions
 
8
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 Guide to Standard with:
Reasons and motivation to develop a
new standard and the approach
Explanation of the scope, application
and structure
Explanation of the different level of
performance tests
The procedures for acceptance
Explanations for choices made in the
development of the standard itself.
 
9
 
Development of WIM Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 Operating Conditions:
Ranges for: Speed, Temperature
Humidity, EMC, Mains Variation
 
Technical Requirements:
Vehicle Record, Completion Rate
Time + Speed 
Recording
Length 
Measurement
Vehicle Classification
 
Weighing Requirements:
Accuracy Classes, eg. L(5) S(10)
 
10
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
11
 
Specification of Accuracy classes:
Legal applications; 
L
(x)
[-MPE, +MPE] interval
Includes 100% of measurements
 
Development of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
12
 
Development of Standard
 
Test Procedures
Legal Applications
3 test levels
Independent Metrological Approval
Testing and Certification by NMi
or approved National Authority
Statistical Applications
2 Test levels
Relation between Buyer and Vendor
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
13
 
 
Type Approval:
New Type of System
Pre-approval
Laboratory Tests
Large Field Test (90 runs)
Initial Verification:
After Installation
Medium Field Test (60 runs)
In-service Verification:
After certain period (1 year)
Small Field Test (30 runs)
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
Development of Standard
 
14
 
Topics
 
 Development
Background
Content
Test Procedures
 Implementation
3 Elements
Data Quality Management
Type Approval Procedure
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 
Legal Acceptance
 
Provides legal basis for use of WIM
Requirements for:
System Accuracy & Reliability
System Operation & Maintenance
(Data Quality Management)
Included in National Legislation
Based on International/NMi Standard
 
15
 
Implementation of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
Preparations for Legal Acceptance in:
Czech Republic;
Netherlands;
Ireland;
Estonia:
Austria;
Poland;
Brazil;
Argentina;
? ? ?
 
16
 
Implementation of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 
System Approval
 
Provides metrological reference
 
Formal system testing & certification
Type Approval,
Initial Verification
In-Service Verification
 
Based on international/NMi standard
 
17
 
Implementation of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
Type Approval:
1.
Pre-approval Fase
 
Assessment of:
All existing documentation
Previous test results
 
Determination of
Possible missing documentation
Acceptance of previous test results
Description of required Tests procedures
Planning of next Fases
Overview of Costs
 
18
 
Implementation of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
19
 
Implementation of Standard
1.
Pre-approval Fase
2.
 Laboratory Tests
At NMi Lab in Dordrecht or
Approved National Lab
 
Testing of:
Temperature + Humidity
Immunity to EMC, Mains variations
Hard- and Software Security
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
1.
 Pre-approval Assessment
2.
 Laboratory Tests
3.
 Field Tests
At customer location
Organization by Customer
Supervision by NMi 
(or CSI)
 
Testing :
3 different test-trucks, fully loaded*
30 runs each spread over speed range
Accepted if: No error > 0.5 * MPE
 
20
 
Implementation of Standard
 
* For Weight Enforcement
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
 
Data Quality Management
 
Proof of operational stability
 
Through combination of:
Continuous Checks
Maintenance
Calibration
 
Included in the Quality System for
the operation of the WIM system
 
21
 
Implementation of Standard
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
6 months
 
22
 
Implementation of Standard
12 months
I
n
i
t
i
a
l
V
e
r
i
f
i
c
a
t
i
o
n
I
n
-
S
e
r
v
i
c
e
V
e
r
i
f
i
c
a
t
i
o
n
L
e
g
a
l
l
y
 
S
p
e
c
i
f
i
e
d
M
a
x
.
 
E
r
r
o
r
I
n
-
S
e
r
v
i
c
e
V
e
r
i
f
i
c
a
t
i
o
n
U
n
k
n
o
w
n
R
e
a
l
 
E
r
r
o
r
 
 
 
 
  Legal Acceptance and System Approval
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
6 months
 
23
 
Implementation of Standard
12 months
Initial
Verification
In-Service
Verification
Specified
Max. Error
In-Service
Verification
Unknown
Real Error
 
 
 
 
  Not always enough!
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
6 months
 
24
 
Implementation of Standard
12 months
Initial
Verification
In-Service
Verification
Specified
Max. Error
In-Service
Verification
Unknown
Real Error
 
 
 
 
?
 
?
 
  What happens in between?
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
25
 
Implementation of Standard
 
Purposes of Data Quality
Management (DQM):
 
to make sure the WIM systems
continue to operate within
specifications in between ’hard’
system verifications.
to provide input for maintenance,
trouble shooting and calibration of
the WIM systems
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
26
 
Conclusions
 
New NMi WIM Standard:
High Speed and Low Speed WIM
Legal and Statistic Applications
Performance Requirements
Minimum Testing Procedures
Technology Independent
International use;
Free of charge
 
Implementation requires
 3 Elements:
Legal Acceptance
System Approval
Data Quality Management
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
 
27
 
More Information
 
Download at NMi website:
 
http://www.nmi.nl/nmi-wim-standard/
 
Or contact:
Cock Oosterman: 
coosterman@nmi.nl
Hans van Loo:
 
hans.vanloo.int@gmail.com
 
F
r
e
e
 
t
o
 
u
s
e
!
 
W
e
i
g
h
-
I
n
-
M
o
t
i
o
n
 
S
t
a
n
d
a
r
d
Slide Note
Embed
Share

Development and application of Weigh-In-Motion (WIM) technology in legal and statistical contexts, ensuring accuracy in weight enforcement and tolling. Explore the evolution of international standards and the benefits of high-speed and low-speed WIM systems. Learn about the importance of data quality management and certification in facilitating market access and improving traffic management efficiency.

  • Weigh-In-Motion
  • WIM technology
  • Data Quality Management
  • Legal Metrology
  • International Standards

Uploaded on Sep 13, 2024 | 0 Views


Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

E N D

Presentation Transcript


  1. NMi WIM standard Cock Oosterman NMi Certin Hans van Loo Corner Stone Int.

  2. Weigh Weigh- -In In- -Motion Standard Motion Standard Topics Development Background Content Test Procedures Implementation 3 Elements Data Quality Management Type Approval Procedure 2 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  3. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Dutch, Independent, Test, Inspection, Calibration and Certification Institute 1000 years of experience in Global Legal Metrology Certification & Acceptance World wide Certification (OIML) European Approvals (CE) National Approvals (Enforcement) SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  4. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Legal Applications: Direct Weight Enforcement and Tolling by Weight Metrology: The measurements of the Weigh-In-Motion systems are used directly as basis for fine/fee. Benefits: Most efficient way of weight enforcement and tolling by weight without any impact on the traffic flow Guarantee: All issued fines/fees must be justified, hence all measurements should always be within specification. 4 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  5. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard 3 International Standards COST-323, ASTM-E1318, OIML-R134 Each with own purpose and (dis-)advantages Parts used in tenders None for legal applications at high speeds Many National Standards All different Often not practical Limitation for new applications Barrier for market access 5 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  6. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard HIGH SPEED Free Flow Conditions With Vehicle Dynamics 4 Areas of WIM LOW SPEED Controlled Conditions No Vehicle Dynamics LEGAL APPLICATIONS Accuracy of each measurement Specified in MPE (100%) HS LS Legal Legal Direct Weight Enforcement Tolling by Weight STATISTICAL APPLICATIONS Accuracy of average measurement Specified in 2 (95%) LS Stat. HS Stat. ??? Statistics on Traffic Loading Pre-Selection Enforcement 6 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  7. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard NMi WIM Initiative (2016) NMi WIM Scope: Automatic WIM-systems. High Speed and Low Speed Performance Requirements Minimum Testing Procedures STANDARD Application: Technology Independent Legal and Statistic Applications International use, free of charge 7 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  8. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard NMi WIM Initiative NMi WIM International Expert Group: Different Manufactures Different Technologies Legal Metrology > 100 year experience STANDARD Balance between: Theoretical requirements Practical conditions 8 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  9. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of WIM Standard Guide to Standard with: Reasons and motivation to develop a new standard and the approach Explanation of the scope, application and structure Explanation of the different level of performance tests The procedures for acceptance Explanations for choices made in the development of the standard itself. 9 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  10. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Operating Conditions: Ranges for: Speed, Temperature Humidity, EMC, Mains Variation Technical Requirements: Vehicle Record, Completion Rate Time + Speed Recording Length Measurement Vehicle Classification Weighing Requirements: Accuracy Classes, eg. L(5) S(10) 10 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  11. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Specification of Accuracy classes: Legal applications; L(x) [-MPE, +MPE] interval Includes 100% of measurements Class L(3) L(5) L(7) L(10) GVW 3 5 7 10 Axle Group 5 8 11 15 Axle Load 7 10 15 20 11 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  12. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Test Procedures Legal Applications 3 test levels Independent Metrological Approval Testing and Certification by NMi or approved National Authority Statistical Applications 2 Test levels Relation between Buyer and Vendor 12 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  13. Weigh Weigh- -In In- -Motion Standard Motion Standard Development of Standard Type Approval: New Type of System Pre-approval Laboratory Tests Large Field Test (90 runs) Initial Verification: After Installation Medium Field Test (60 runs) In-service Verification: After certain period (1 year) Small Field Test (30 runs) 13 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  14. Weigh Weigh- -In In- -Motion Standard Motion Standard Topics Development Background Content Test Procedures Implementation 3 Elements Data Quality Management Type Approval Procedure 14 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  15. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Legal Acceptance Legal System Approval Provides legal basis for use of WIM Requirements for: System Accuracy & Reliability System Operation & Maintenance (Data Quality Management) Acceptance Data Quality Management Included in National Legislation Based on International/NMi Standard 15 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  16. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Preparations for Legal Acceptance in: Czech Republic; Netherlands; Ireland; Estonia: Austria; Poland; Brazil; Argentina; ? ? ? 16 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  17. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard System Approval Legal System Approval Provides metrological reference Acceptance Formal system testing & certification Type Approval, Initial Verification In-Service Verification Data Quality Management Based on international/NMi standard 17 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  18. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Type Approval: 1. Pre-approval Fase Assessment of: All existing documentation Previous test results Determination of Possible missing documentation Acceptance of previous test results Description of required Tests procedures Planning of next Fases Overview of Costs 18 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  19. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard 1. Pre-approval Fase 2. Laboratory Tests At NMi Lab in Dordrecht or Approved National Lab Testing of: Temperature + Humidity Immunity to EMC, Mains variations Hard- and Software Security 19 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  20. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard 1. Pre-approval Assessment 2. Laboratory Tests 3. Field Tests At customer location Organization by Customer Supervision by NMi (or CSI) Testing : 3 different test-trucks, fully loaded* 30 runs each spread over speed range Accepted if: No error > 0.5 * MPE * For Weight Enforcement 20 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  21. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Data Quality Management Legal System Approval Proof of operational stability Acceptance Through combination of: Continuous Checks Maintenance Calibration Data Quality Management Included in the Quality System for the operation of the WIM system 21 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  22. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Legal Acceptance and System Approval Initial Verification In-Service Verification In-Service Verification Legally Specified Max. Error Unknown Real Error 6 months 12 months 22 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  23. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Not always enough! Initial Verification In-Service Verification In-Service Verification Specified Max. Error Unknown Real Error 6 months 12 months 23 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  24. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard What happens in between? Initial Verification In-Service Verification In-Service Verification Specified Max. Error ? ? Unknown Real Error 6 months 12 months 24 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  25. Weigh Weigh- -In In- -Motion Standard Motion Standard Implementation of Standard Purposes of Data Quality Management (DQM): WIM systems to make sure the WIM systems continue to operate within specifications in between hard system verifications. Calibration Data Base Data Quality Checks Maintenance to provide input for maintenance, trouble shooting and calibration of the WIM systems Good Data Bad Data Problem Assessment Users 25 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  26. Weigh Weigh- -In In- -Motion Standard Motion Standard Conclusions New NMi WIM Standard: High Speed and Low Speed WIM Legal and Statistic Applications Performance Requirements Minimum Testing Procedures Technology Independent International use; Free of charge Implementation requires 3 Elements: Legal Acceptance System Approval Data Quality Management 26 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

  27. Weigh Weigh- -In In- -Motion Standard Motion Standard More Information Free to use! Download at NMi website: http://www.nmi.nl/nmi-wim-standard/ Or contact: Cock Oosterman: coosterman@nmi.nl Hans van Loo: hans.vanloo.int@gmail.com 27 SATC - ISWIM Weigh-In-Motion Workshop - July 12th 2018

More Related Content

giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#giItT1WQy@!-/#