The problem of minor vehicles crossing or merging into themajor stream at unsignalized priority-controlled intersections iswell-known.Numerous solutions involve various assumptionsconcerning the major headway distributions, number of majorlanes, critical gap distributions, etc.Such cases can be dividedinto two main groups: intersections with two 30" Induction Cooktop streams (one majorand one minor stream) and intersections with more thantwo streams (more than one major stream and one minorstream).
At roundabouts, also at single-lane roundabouts,there are similar problems like the ones at other unsignalizedpriority-controlled intersections.A vehicle at the roundaboutapproach can only cross the pedestrian crossing when a sufficienttime-gap ORG VITAMIN C ORANGE SPRAY between two pedestrians (or cyclists) is provided.A vehicle at the roundabout entries can only merge into the majorstream when a sufficient gap between the two vehicles in themajor stream is provided.
Because of that, single-lane roundaboutscan also be treated as unsignalized intersections withtwo major lanes: the first one in its circulatory roadway and thesecond one on the pedestrian crossing.