David Levinson, Associate Professor, Civil Engineering
In most urban areas, traffic congestion is a serious and worsening problem. Freeways operate efficiently as long as the number of vehicles using the freeway remains at or below design capacity. While demand for highways is growing quickly, highway capacity is growing much more slowly, leading to congestion. Due to congestion, road users suffer increased travel time and consume more fuel, increasing travel cost. This also disturbs the usual flow pattern on highways. Use of intelligent transportation system technology to manage freeways is gaining attention due to its advantages in reducing congestion. Despite all this technology, there are still issues related to their best utilization.