Research Article
The Surrogate Safety Appraisal of the Unconventional Elliptical and Turbo Roundabouts
Table 1
Details of double-lane roundabouts simulated.
| Number of lanes | Types of roundabout | Speed limits[km/h] | Traffic light | Central island radii[m] | Total Traffic Volume[veh/h] | Max Capacity |
| Two lanes | Turbo | 50 | Absence | Main radius R=56m | 3040veh/h | 3480veh/h | Two lanes | Elliptical | 50 | Absence | Main radius R=56m Secondary radius r=23m | 2400veh/h | 3000veh/h |
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