Almost a year after the Intercounty Connector opened, giving drivers another route to Interstate 95, officials say the road is as busy as they expected it to be.

Weekday traffic on the western end of the road, from Interstate 370 to Georgia Avenue, averaged more than 35,000 vehicles in September. On the eastern end, from U.S. 29 to I-95, an average of 26,000 cars drove the road. Those numbers are close to earlier estimates showing 30,000 cars using the ICC daily by June.

"Traffic is higher than projected on the western end and center segments of the project, but is slightly lower than projected on the eastern end," said Maryland Transportation Authority Executive Secretary Harold Bartlett in a statement.

Use of the toll road is increasing about 3 percent a month, officials said.

The toll road raised $19.7 million between June 2011 and last June, topping estimated earnings of $18.7 million, the agency said.

The agency also completed a study on whether to increase the speed limit on the ICC, currently set at 55 mph. Officials will decide by the end of the year whether to raise it, they said.

The last large segment of the Intercounty Connector opened last winter. The $2.4 billion toll road for decades drew the ire of environmentalists, who said it would destroy valuable rural space.