A truck and bus managed lane, a separate (exclusive) right-turn lane that lies adjacent to a modern roundabout, allows right-turning movements to bypass a roundabout, facilitates right-turn traffic flow, helps the heaviest used roundabout approach, reduces approach delay, and may reduce vehicle conflicts. A microsimulation assessment considers experimental balanced flow scenarios and three different bus and truck as managed lane traffic percentages (low: 5%, moderate: 45%, and high: 100%). Results show variations and sensitivity of roundabouts delay with managed lanes are due to variations of volumes. Also, the free-flow managed lane exit type provides significant reductions in total roundabout average delay. Consistent with expectations, the average delay of a roundabout with truck managed lane has a significant reduction on the average roundabout delay compared to the bus managed lane.
Roundabout Managed Lanes: Experimental Analysis Comparison between Trucks and Buses
International Conference on Transportation and Development 2016 ; 2016 ; Houston, Texas
2016-06-20
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”
DOAJ | 2011
|On the Treatment of Trucks in Roundabout Analyses
Online Contents | 2015
|