Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. Traffic Volume Trends Traffic Volume Trends (TVT) is "a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 4,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year." TVT archive goes back to 1992; additional vehicle-miles of travel (VMT) data back to 1970. From the U.S. Federal Highway Administration (FHWA). http://www.fhwa.dot.gov/ohim/tvtw/tvtpage.cfm Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *