FIGURE 1 Concerns About the Quality of Transportation Services: 2001,,, ,% of travelers indicating problem,, Road rage,40.03,, Distracted drivers,37.08,, Gas prices,37.11,, Drivers speeding,36.43,, Large trucks,33.07,, Pavement condition,31.00,, Drunk drivers,28.49,, Highway congestion,28.00,, Not knowing about traffic tie-ups,26.72,, Worry about accidents,24.75,, Lack of walkways,16.54,, Source: Oak Ridge National Laboratory.,,,