WASHINGTON — About two years ago, during the last big debate over Interstate 66 rush-hour tolls for solo drivers, there was a lot of talk about $17 round-trip tolls. Virginia’s transportation secretary said this week that the tolls drivers have seen inside the Beltway so far remain in line with those projections. New data the Virginia Department of Transportation provided Thursday from the first day of tolls on Monday morning show the average morning toll for drivers who paid with an E-ZPass, or who will get automated violation notices in the mail, was $10.70, while the average afternoon toll paid...