Investigation of the Impact of Snow Removal Activities on Pavement Markings inVirginia

摘要

Snow removal activities resulted in substantial damage to pavement markings inVirginia over the last 2 years. Typically, the estimates of the extent of pavement marking damage are based on the observations of the staff of the Virginia Department of Transportation (VDOT). For example, it was estimated that about half of the pavement markings statewide were damaged during the 1993-94 winter and that replacement costs were $8 million. The objective of this study was to obtain accurate data on the pavement marking damage caused exclusively by carbide-tipped blades. Data were collected at 22 study sites on interstate highways and principals arterials because of the prevalence of a variety of pavement markings and the designation of these roads as high-priority routes for snow removal. Three types of pavement markings-latex paint, thermoplastic, and waffle tape-were assessed for damage. Based on data gathered at the study sites, the estimated statewide cost of damage caused by snow plows was between $1.58 and $2.26 million for waffle tape and between $1.06 and $1.59 million for paint, total of between $2.64 and $3.85 million. It should be noted, however, that the 1994-95 winter was relatively mild compared to a typical winter in Virginia. The study recommends that VDOR (1) take measures to protect its investment in pavement markings from snow plow damage, (2) comprehensively assess pavement markings damage caused by other maintenance activities, and (3) designate the inlaid method as the primary installation method for waffle tape.