چكيده به لاتين
Roundabout capacity as well as other city intersections are the most important issues in their design. A variety of factors can affect the capacity that the most important of them can be circulating flow rate, flow rate of heavy vehicles, the presence of pedestrian, driver behavior and geometrical characteristics. Therefore Experts have tried based on various sciences, engineering, mathematical and statistical methods to determine the capacity of roundabout according to local conditions.
Most previous studies focused on the effects of the volume of incoming vehicles, circulating vehicles and geometry of the roundabout, such as number of lines and the diameter of the roundabout on roundabout capacity. Only a handful of studies have examined the impact of the pedestrian on the entry capacity.
In this thesis has been tried to discuss of the analysis and the capacity roundabout without lights and the factors affecting it, the pedestrian influence on entry capacity. To do it, a case study in Tehran roundabouts (Sabalan square) is selected and Pedestrian parameters such as volume, distance the pedestrian crosswalk to the roundabout, the volume of circulating vehicles in simulation software AIMSUN was modeled.
