Exploring microscopic crash mechanisms of freeway-to-freeway interchange ramps
Language: English Publication details: Linköping : Statens väg- och transportforskningsinstitut, 2018Description: 3 sSubject(s): Online resources: Summary: Freeway-to-freeway interchange ramps are critical components of freeway networks. The safety of interchange ramps is a major concern. In order to provide high speed traffic transfer between two separating freeways, interchange ramps are designed to have horizontal or vertical curvatures or both. These curvatures make interchange ramps much more complicated and dangerous than freeway mainline segments. Previous research has indicated that the crash rates of interchange ramps were much high than mainlines. Thus, the safety of interchange ramps needs to be explored.Freeway-to-freeway interchange ramps are critical components of freeway networks. The safety of interchange ramps is a major concern. In order to provide high speed traffic transfer between two separating freeways, interchange ramps are designed to have horizontal or vertical curvatures or both. These curvatures make interchange ramps much more complicated and dangerous than freeway mainline segments. Previous research has indicated that the crash rates of interchange ramps were much high than mainlines. Thus, the safety of interchange ramps needs to be explored.