Page 82 - Technology Roadmap Transportation

TECHNOLOGY VISION 2035

TABLE 4.6 RESEARCH AGENDA FOR EMISSION REDUCTION

On Board Diagnostics for lubrication oil residual useful life
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SHORT
TERM Exhaust gas after-treatment
(1-5 YEARS) ----------------------------------------------------------------------------------
Accurate measurement of unregulated pollutants such as carbonyls PAHs etc.
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Development of technologies to reduce cold start emissions
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Use of tyre pressure sensor

Diesel Oxidation Catalyst (DOC), the Diesel Particulate Filter (DPF), Lean
MEDIUM NOx-Trap (LNT), Selective catalytic reduction(SCR), Three Way Catalytic (TWC)
TERM ---------------------------------------------------------------------------------
(5-10 YEARS) Plasma regenerated traps, fuel borne catalysts and a combination of these
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Efficient vehicle recycling infrastructure and policies
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Improved tyres and research to understand road-tyre interaction to control
non-combustion fine particulates
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Development of centers of excellence of power train development, which are
capable of understanding nuances of combustion using optical diagnostics, Laser
diagnostics, Engine endoscopy

Non-noble metal based catalysts for exhaust gas after-treatment
LONG
TERM -------------------------------------------------------------------------------
(10-15 YEARS) Automatic vehicle map correction based on altitude

4.13 GLOBAL ROAD TRANSPORT: FUTURE laminated covers and sound absorptive material
NOISE TRENDS in the engine compartment. Optimization of
Actual traffic noise should have significant the stiffness of the cylinder block and usage of
reductions necessary if people living near busy structure-borne noise reducing materials.
roads are to enjoy recommended community
noise levels. The challenge in the future is to 4.14 NOISE TRENDS IN INDIAN ROAD
create a sustainable acoustical environment TRANSPORT
around roads and streets, in a time of continued Urban traffic noise in India is one of the most
traffic growth, building of more roads and critical types of noise and normally considered
streets, and with a likely continued trend more interfering than the other types of noises.
towards larger and more powerful vehicles on The major cause of noise pollution is the
the roads. It is difficult to imagine a development sound coming from the horns and sirens of the
in that direction without the use of more vehicles continuously been activated day in and
stringent vehicle and tyre/road noise emission day out along the roads. The noise levels have
limits. Some new technologies for sound been broadly classified under four categories by
reduction in vehicles is improving the shape Ministry of Environment and Forests vide The
of the combustion chamber, encapsulation Noise Pollution (Regulation and Control) Rules,
or shielding of entire engines or especially 2000, figure 4.13.
noisy parts of them. Use of hood blankets or

80 ROADWAYS