HOUSTON (CBS Houston) Perhaps it takes very little in terms of studies, research or findings to know that commuting can be an arduous task or even a nightmare in Houston.

Nevertheless, according to an annual study from Texas A&M transportation institute , congested roads cost commuters in America at least $121 billion in time as well as wasted fuel back in 2011, which factors to be more than $800 per person.

Furthermore, the study ranked ten of the worst cities when it comes to road congestion; Houston made the list. Other cities on the list labeled as horrendous for commuters included: Washington, San Francisco-Oakland, New York-Newark, Boston, Los Angeles, Atlanta, Chicago, Philadelphia and Seattle.

In fact, researchers of the study found that Houstonians waste approximately 23 gallons of gas sitting in traffic. Drivers in the Houston metropolitan area were also likely to waste what would calculate to be more than two days a year on average, sitting in traffic; it’s time that also costs the average Houston commuter over $1,000 in lost time and gas a year.

Projections indicate that four million people live in Harris county; the number is expected to increase over the next two decades.