Abstract:

Two and three wheelers are among the most common and popular means of transport in most Asian countries. Due to inadequate public transport systems, and increased necessity for mobility, the numbers of these vehicles on Asian city roads continue to grow.

It is well established that periodical inspection and maintenance of vehicles is a must and with regard to Emissions, periodic checks and maintenance of Idling Emissions (CO and HC),using portable analysers is a common practice in many countries .In order to improve the efficiency of enforcement and better control, some countries have resorted to computerizing the process of emission checking and have benefited immensely from it.

Modern two and three wheeler engines are quite sophisticated by design and in order to meet stringent mass emission standards, are fitted with after treatment devices like, catalytic converters. It is essential to ensure that these special devices are monitored periodically and are operating satisfactorily. For this, it may be necessary to introduce a 2 speed test procedure, similar to the one adopted in some countries for automobiles.

It is well known that IdIling Emission tests for CO and HC do not reflect the actual operating condition of these vehicles on road. There has been an attempt in India to develop a loaded-test procedure for motorcycles, using simple roller test bench and portable Emission test equipment..

Apart from Emissions, high level of accidents involving motorcyclists is a major source of worry. It is necessary to develop simple, easy to operate Inspection & maintenance lines for motorcycles and three wheelers covering critical safety-related parameters..

Most importantly, for effective implementation of any Inspection and maintenance programme , strong support and commitment of Govt. agencies is vital.

Presentation: http://www.cleanairnet.org/baq2006/1757/docs/SW16_1.ppt