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ICT 3 Scenario 1: GRB/Germany –proposal Assumptions - reductions in dB – compared to 1999: Light Duty Vehicles: Heavy Duty Vehicles: YearEngine noise Tyre noise Total YearEngine noise Tyre noise Total
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1ICT
Scenario calculations on the effect of different source reduction on road vehicles using the TraNECam/Rotranomo calculation model, developed by H.Steven, TÜVNord.
by Truls Berge SINTEF ICT, Dept of Acoustics, Trondheim, NORWAY 22.02.2006
Informal Document GRB-43-6(43rd GRB 21-23 February 2006, agenda item 6).
2ICT
Calculation outline:
Starting year is 1999, based on the Norwegian vehicle fleet and statistics.The basic trend, without any regulatory steps for vehicles or tyres is calculated for the years 2003, 2010,2015 and 2020.For all scenarios, the changes in Leq (10 m). Ltot, are calculated, as well as the changes in rolling noise, Lroll, and engine noise, Lprop.
All scenarios have the same levels in 2010, as the basic trend.
The calculations are done for the following traffic conditions (all free flowing):1. ADT= 10000 HDV= 10 % Posted speed: 50 km/h
2. ADT= 20000 HDV= 15 % Posted speed: 80 km/h
3ICT
Scenario 1: GRB/Germany –proposal
Assumptions - reductions in dB – compared to 1999:
Light Duty Vehicles:
Heavy Duty Vehicles:
Year Enginenoise
Tyre noise
2011 - 1.5 -1.5
2015 - 0.75 - 0.75
Total - 2.25 -2.25
Year Enginenoise
Tyre noise
2011 - 1.8 - 0.9
2015 - 0.9 - 0.5
Total - 2.7 -1.4
4ICT
Results: GRB/Germany-proposalReduction in Leq, compared to 2010.
10000 ADT, 10 % HDV, 50 km/hYear 2015 2020
Lprop - 0.2 -1.1
Lroll - 0.1 - 0.6Ltot - 0.1 - 0.8
GRB/Germany, 10000 ADT,10%HDV, 50 km/h
60
62
64
66
68
70
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot GRB/D Ltot GRB/D Lprop GRB/D Lroll
5ICT
Results: GRB/Germany-proposalReduction in Leq, compared to 2010.
20000 ADT, 15 % HDV, 80 km/hYear 2015 2020Lprop - 0.2 -1.0Lroll 0 - 0.6Ltot 0 - 0.6
GRB/Germany, 20000 ADT,15%HDV, 80 km/h
60
65
70
75
80
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot GRB/D Ltot GRB/D Lprop GRB/D Lroll
6ICT
Scenario 2: Low ambition
Assumptions - reductions in dB – both LDV and HDV, compared to 1999:
Year Enginenoise
Tyre noise
2011 - 1 - 1
2015 - 1 - 1
Total - 2 - 2
7ICT
Results: Low ambition; -2 dB engine and – 2 dB tyresReduction in Leq, compared to 2010.
10000 ADT, 10 % HDV, 50 km/hYear 2015 2020Lprop - 0.7 -1.5Lroll - 0.4 - 1.1Ltot - 0.5 - 1.3
LOW, 10000 ADT,10%HDV, 50 km/h
60
62
64
66
68
70
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot LOW Ltot LOW Lprop LOW Lroll
8ICT
Results: Low ambition; -2 dB engine and – 2 dB tyresReduction in Leq, compared to 2010.
20000 ADT, 15 % HDV, 80 km/h
Year 2015 2020
Lprop - 0.6 -1.4
Lroll - 0.4 - 1.1
Ltot - 0.4 - 1.2
LOW, 20000 ADT,15%HDV, 80 km/h
60
65
70
75
80
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot LOW Ltot LOW Lprop LOW Lroll
9ICT
Scenario 3: High ambition
Assumptions - reductions in dB – both LDV and HDV, compared to 1999:
Year Enginenoise
Tyre noise
2008 - 1 -
2011 - 1 - 2
2015 - 1 - 2
Total - 3 - 4
10ICT
Results: High ambition; -3 dB engine and – 4 dB tyresReduction in Leq, compared to 2010.
10000 ADT, 10 % HDV, 50 km/hYear 2015 2020Lprop - 1.0 -2.1Lroll - 0.7 - 2.1Ltot - 0.8 - 2.1
HIGH, 10000 ADT,10%HDV, 50 km/h
60
62
64
66
68
70
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot HIGH Ltot HIGH Lprop HIGH Lroll
11ICT
Results: High ambition; -3 dB engine and – 4 dB tyresReduction in Leq, compared to 2010.
20000 ADT, 15 % HDV, 80 km/h
Year 2015 2020Lprop - 1.0 -2.1
Lroll - 0.7 - 2.2Ltot - 0.8 - 2.1
HIGH, 20000 ADT,15%HDV, 80 km/h
60
65
70
75
80
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot HIGH Ltot HIGH Lprop HIGH Lroll
12ICT
Scenario 4: Very high ambition
Assumptions - reductions in dB – both LDV and HDV, compared
to 1999:
Year Enginenoise
Tyre noise
2008 - 2 -
2011 - 2 - 2
2015 - 2 - 2
Total - 6 - 4
13ICT
Results: Very high ambition; - 6 dB engine and – 4 dB tyresReduction in Leq, compared to 2010.
10000 ADT, 10 % HDV, 50 km/hYear 2015 2020Lprop - 1.4 -3.5Lroll - 0.7 - 2.1Ltot - 1.0 - 2.7
VERY HIGH, 10000 ADT,10%HDV, 50 km/h
60
62
64
66
68
70
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot VERY HIGH Ltot
VERY HIGH Lprop VERY HIGH Lroll
14ICT
Results: Very high ambition; - 6 dB engine and – 4 dB tyresReduction in Leq, compared to 2010.
20000 ADT, 15 % HDV,80 km/h
Year 2015 2020Lprop - 1.4 -3.5Lroll - 0.7 - 2.2Ltot - 0.8 - 2.4
VERY HIGH, 20000 ADT,15%HDV, 80 km/h
60
65
70
75
80
1999 2003 2010 2015 2020
Year
Leq(
10m
), dB
(A)
BASIC Ltot VERY HIGH Ltot
VERY HIGH Lprop VERY HIGH Lroll
