The season in Utah following "road construction" is winter. In winter, trying to follow the white lines that have been moved during Utah's other season can be very difficult. Seeing the lines, especially in wet, icy or snowy weather, is almost impossible. Some states, such as Wyoming, use yellow or orange dotted line divisions to provide better contrast between all the shades of wet grey. I suspect white lines are cheaper to paint, but to someone straining at night in unfamiliar territory in foul weather, yellow would be far easier to see and worth the cost. Some older drivers especially need the contrast. Accidents could be prevented if drivers were able to spend more time looking out for other vehicles rather than trying to determine where the lines are. It might even save a life.