It might not be easy, though, to persuade drivers - and voters -in places with clean air to share the tab.

Mr. Chaudhary acknowledged that he hoped the contract would help Elite grow faster by persuading drivers at other companies to move to Elite because they want health-care coverage.

On the other hand, persuading American drivers to change their behavior could result in even bigger safety gains.

Should new roads be built or existing roads widened, or should congestion be used - even cultivated - as a means of persuading drivers not to drive?

Ms. White examines various policies that might persuade drivers to adopt such changes, including changes in liability rules, traffic rules and insurance rules.

He hopes to make the test more rigorous, to persuade drivers that politeness counts and to streamline regulations.

But how to persuade drivers of its merits?

This divides the vista into short stretches, an important element in persuading drivers to slow down.

Many residents said they had blockaded truck convoys and then persuaded drivers to start using the equipment right here.

And Cameron, together with his ministerial team, intends to seize on this fact in an attempt to persuade drivers that they would be worse off under a Labour regime.