AUSTIN -- House Speaker Tom Craddick is asking lawmakers to review the Texas Department of Transportation's multimillion dollar ad campaign promoting toll roads and the Trans-Texas Corridor.

Craddick included a review of the Keep Texas Moving campaign on a list of topics that the House State Affairs Committee will study leading up to the 2009 legislative session.

Craddick also asked the Appropriations Committee to review transportation spending over the past five years and study alternatives for funding future transportation needs.

The transportation matters were among the "interim charges" that Craddick assigned last week.

Transportation officials have defended the Keep Texas Moving campaign as a response to lawmakers' demands for the agency to improve its communication with the public.