Traffic volume refers to the number of vehicles that pass a specific point on a road over a certain period, usually measured in vehicles per hour or per day. This measurement helps city planners and transportation agencies understand road usage and identify areas that may require improvements or expansions. High traffic volume can lead to congestion, longer travel times, and increased emissions. Monitoring traffic volume is essential for effective urban planning, as it informs decisions about road maintenance, public transportation options, and the development of infrastructure to accommodate growing populations and changing travel patterns.