Traffic on New Hampshire toll roads is down, but turnpike revenue is looking up due to last year's toll increases. Revenue for June was nearly $2 million higher than a year ago for that month, said Harvey S. Goodwin, administrator of the Bureau of Turnpikes for the state Department of Transportation. However, June's receipts were about 3.5 percent less than expected, he said. And expectations may not be so great for July and August.