The traffic fatality rate has declined by 27 percent since 1980, falling to 2.4 deaths per 100 million miles of vehicle travel in 1988.

Increases in vehicle travel are linked to a range of health problems including poor urban air quality, road injuries and fatalities, and reduced physical activity.

"Westchester ranks as the No. 1 hot spot in the state, with increases in vehicle travel of 20 percent a year."

The total death rate was calculated at 1.52 per 100 million miles of vehicle travel, down from 1.53.

With a wheel, the friction is only on the inside of the hole, and it slides only 1cm for each 10cm of vehicle travel.

For example, the speed that a vehicle travels will also be influential on the petrol consumed, and therefore the cost of a journey.

Last year's rate of 1.48 deaths for every 100 million miles of vehicle travel is the lowest since 1930, when the state began keeping such statistics.

The best shows are sold out, double-deck buses jam the streets, and private vehicle travel grows each year.

The Wilderness Areas have no motorized vehicle travel, to support all the animal and plant community ecosystems within them.

Off-road vehicle travel, including by mountain bike, is not allowed.