Motorists on Oklahoma’s turnpikes could see an average toll increase of about 16 percent in the next month.Members of the Oklahoma Turnpike Authority will consider raising the tolls on the state’s 10 turnpikes at their meeting Wednesday."We still think we have the best roads in the state, and in order to maintain them, it looks like a toll increase is what needs to happen,” said Jack Damrill, spokesman for the Turnpike Authority.The increase, the first since 2001, is necessary to make up for declining revenue, mostly caused by a continuing slide of commercial truck traffic accented by the nation’s recession, Damrill said.The Turner, Will Rogers and H.E.