Re: ctc and motorcycles

On Wed, 28 Mar 2007 17:37:35 +0100, Anthony Jones <news@xxxxxxxxxxxxxxxxxxxx>
wrote:

Ziggy wrote:
Do not, however, expect TPTB (or anyone much else) to take a great deal of
notice of your opinion UNLESS you can demonstrate a practical way of
dealing with large populations of vehicle that does NOT involve using
averages.

Look at how VED is determined for cars and motorcycles. It would appear that
they already share my opinion.

But in this case they *do* have the data required!

One of the things that is recorded in the vehicle data they hold is the engine
size, so they use that.

Note, however, that the basis of the charge is a generalisation that a bigger
engine is more polluting.

The charge makes no attempt to levy tax on how much a particular vehicle *will*
pollute.

For that they would need extra information such as its state of tune and
maintenance and how often and for what distance it was used.

There is a *massive* overlap between pollution caused by different engine sizes.

A small, old, badly tuned engine in a car doing 20,000 miles a year on short
hops is much more polluting than a large, modern, well tuned and maintained
engine doing 5,000 miles a year on long runs.

So, you see, they really don't share your opinion as they are still using
overlapping classes because that is what they have the data to manage.

.

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