The original route through Warrington town centre included the narrow Sankey Street, which required special narrow buses to be operated.

Most will evacuate in their own cars, but some will require vans and buses provided by the authorities.

A response team, he said, would require portable hospitals or buses equipped as clinics as well as specialized medical staff to deal with chemical burns.

She was arrested under a city ordinance requiring segregated buses.

In requiring trucks and buses to undergo emissions testing, New York will join California, New Jersey, Connecticut and 11 other states.

The new rules are part of long-term plan, begun in the previous administration, to require diesel trucks and buses to reduce emissions by 90% by 2007.

This was reduced in a ruling in 1997 requiring buses to wear an 80% red livery (excluding advertising boards).

The extension required extra new buses, these are Enviro200 Darts, operating in addition to the Dennis Dart SLFs on the route.

The route suffered severe overcrowding at peak times on this section of the route, requiring extra buses to be drafted in to cover.