Where These Drivers Went Wrong

摘要: Although crashes caused by wrong-way drivers are rare, they kill or severely injure and passengers at a much greater rate (per crash) than other types of freeway incidents. This paper describes study conducted the Federal Highway Administration Michigan Department Transportation (MDOT) regarding on freeways. Researchers analyzed 110 that occurred system from 2005 to 2009. The researchers restricted their vehicles were known presumed have entered traveling wrong direction an exit ramp. Findings show some potential for driver confusion leading entry exists across entire population, but is amplified in impaired alcohol drugs, older night. severity crash was linked how far vehicle progressed onto system. A partial cloverleaf interchange provided ramp 60% which point known. has feature appears be source entry: pair exit/entrance ramps adjacent parallel each other, typically meet crossroad near 90-degree angle. mode turn ramp, thinking entering entrance Most engineering solutions can mitigate this problem involve positive cues showcase negative make appear uninviting. Based these findings, MDOT staff identified 161 interchanges exhibit suspect cloverleaf. These being targeted systematic installation low-cost countermeasures over next 5 years. include: lowering bottom height DO NOT ENTER WRONG WAY signs; installing reflective sheeting sign supports placing stop bars ramps; pavement marking arrows extensions will guide left-turning traffic past safely ramp; painting island between sufficient distance up red delineators along discourage headed first two as cost effective all ramps, regardless type. installed non-targeted come routine work.