21.   In Wyoming, at Yellowstone National Park, and in California, at Yosemite National Park, officials are studying ways of using buses to reduce traffic.

22.   It would be difficult to imagine a more inconvenient moment for an alert to reduce the traffic.

23.   Johnson said free fares reduce lunchtime traffic and make downtown travel more convenient for visitors and shoppers.

24.   Last month, Interior Secretary Bruce Babbitt announced a train system to carry visitors into the park and reduce traffic.

25.   Metro is pushing strategies to reduce traffic, such as mixed-use neighborhoods, where a dry cleaner or cafi is a short walk away.

26.   Other experts say, however, that air traffic could be reduced if the price of oil stays high.

27.   Other officials suggested that the increasing availability of drugs in suburban towns might have helped reduce the traffic through Bridgeport as well.

28.   Paring the broadcast reduces traffic on Nasdaq computers, but also reduces visibility of the order.

29.   Portland, Ore., and Seattle are often cited as success stories for having reduced traffic in residential areas and business districts.

30.   Since Monday, officials have mowed the green higher, watered it and reduced the traffic walking on it, hoping to improve the situation.