or abraded between the metal wheel rim and rumble strip high-points. Wildlife attraction Wildlife-vehicle collisions can be a significant problem when large animals are involved such as moose, elk, and deer, which can cause serious vehicle damage, injury, and fatalities. Separate studies in New Hampshire (US) and Quebec (Canada), of radio-collared moose found that home ranges were associated with salt licks formed by road salt runoff. These roadside salt licks were thought to increase moose-vehicle collisions. Normally, salt would make its way off the pavement onto the gravel shoulder and into the soil, however, rumble strips will retain and create a salt lick on the road surface. Loose rock salt in the rumble strip subjected to evaporating moisture will cake and accumulate and is not easily dislodged by truck traffic. See also Musical road Raised pavement marker Road hazard Road surface marking Road traffic control Speed bump Tactile paving, a conceptually similar warning for pedestrians. References External links US FHWA on Rumble Strips Road hazards Road infrastructure Road surface markings Road traffic management