There is yet another delay for the proposed 23-mile Metrorail expansion from Falls Church to Dulles Airport: Construction won't begin until next March, pushing back the completion date a year, to July 2013. 

The news has some commuters wondering if the rail will ever get up and running. "It would be a good idea [but] it won't be done," said commuter Carrie Grimes.

Another commuter, Keshanda Golden feels differently. "I think they will get it done. It might take awhile, but they will get it done. Too many people want it."

The delay has triggered a jump in construction costs by $54 million, bringing the grand total for just the first phase to $1.6 billion.

The long anticipated and heavily debated rail expansion is expected to alleviate the traffic woes along Route 7 in Tysons Corner, but some commuters worry the new railway could mean more congestion.

"It is so congested. You can't access a lot of the small retail businesses, and they are only building more and more residences along Route 7, so it is going to get worse not better," said commuter Conway Dodge.

The rail project has been in jeopardy before, with FTA officials trying to pull the plug back in January because of funding problems. As of today, the federal government has only committed a portion of the $900 million needed for the project and Virginia is expected to come up with the rest of the bill. Still, officials remain hopeful the project will move forward.

Despite the setback, preparatory work has already begun along Route 7 in Tyson's Corner.

"If you drive through Tyson's Corner today, you'll see work on this project. The utilities are being relocated, which is preparatory work for the actual construction of the project...the project is advancing," said James Bennett, President and CEO of the Metropolitan Washington Airports Authority.