DENVER -- We know it's coming, and we know it's going to be frustrating.

The Interstate 25 expansion T-REX project is expected to take a toll on traffic and drivers' patience, as well.

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Traffic and tension are angry allies against driver sanity, and when T-REX starts, the experts say that motorists have a choice to make about how it affects them.

Hundreds of thousands of cars each day will endure the bumper-to-bumper, car-horn-honking orange barrel crawl along I-25.

"People don't have the patience behind the wheel anyway and this is going to make things worse," Carole Walker, of the Rocky Mountain Insurance Information Association, said.

T-REX will add lanes, and hopefully ease congestion, but first, commuters have to live through years of construction.

At times, there might be people walking faster than traffic is moving, and that's when T-REX could set off a nasty chain reaction, experts say.

"(Traffic could cause) an elevation in their pulse, maybe an elevation in their blood pressure," psychologist Dr. Paul Dobransky said.

The experts say that before you rage, reason. Ahead of time, make a decision not to suffer, because it's wasted energy.

"Just anticipate that a certain amount of being stuck in traffic is going to be out of my control," Dobransky said.

Simply choosing not to suffer sounds too easy, but Dobransky says it's the key -- go in with the mindset that you can't control the traffic.

Additional Resources:

• T-REX Web Site
• T-REX Project Map