Alberto J. Santiago
The level of mobility on which we have come to depend can no longer be taken for granted. As the backbone for the social and economic development of any country, a sound transportation system can promote business and facilitate communication by ensuring the proper movement of people and goods. Over the last few years, however, demand for the use of transportation facilities in the U.S. has increased at a rate much higher than that which can be absorbed by current systems. This phenomena, coupled with the lack of funding to construct new facilities and accommodate this additional demand, has been a major contributor to traffic congestion.