In 2002, the Texas A&M Transportation Institute researched the viability of converting from yellow to white center lines for the Transportation Research Board. The researchers conducted a survey and discovered that 75% of American drivers associate dashed yellow center lines with dividing opposing traffic; this number rises to 85% for solid center lines. These findings implied that any conversion to white would require an enormously expensive driver education program on top of the cost of repainting center lines, and therefore the Texas researchers advised against conversion.