Maintenance Services And Surface Weather 2011

This issue contains 17 papers on the subject of maintenance services and surface weather. Specific topics discussed include the following: speed compliance in work zones; nighttime luminance of work zone drums; causes of work zone crashes; work zone speed limits; messages on truck-mounted changeable message signs; work zone intrusion crashes; merging lengths for lane closures; snowplowable raised pavement markers; pavement markings retroreflectivity measurement; traffic sign retroreflectivity; field test decks for pavement marking materials; saturation flow under adverse weather conditions; two-lane highway passing-maneuver model; heavy vehicle speed on mountain passes; and prediction and control of salt on road surfaces.