The argument from Kath Lomax was that the series helped encourage new drivers into the formula.

They argued that Webster Avenue's long blocks encouraged drivers to speed.

Most European countries, for example, have encouraged drivers to buy cars with diesel engines, which burn 30 percent less fuel than regular engines.

Mary Caffrey, an insurance department spokeswoman, said the plan would encourage younger drivers who have older cars and limited incomes to "get legal."

In addition, the networks will create advertising to encourage designated drivers and will blend them into their continuing public-service campaigns.

Tolls also encourage rush-hour drivers who are commuting to carpool or use public transit.

The second race encouraged drivers and fans to anticipate some action Sunday.

Those signs, some said, encouraged drivers to forget they were on a residential street.

The change encourages drivers who lust for 75 or 80.

This car was used to encourage disabled drivers to experience racing.