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Civil Companion: Roundabout Capacity Calculator

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V/C Ratio Delay (d) Queue Length (L)
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Capacity Calculation Guide - Polus-Shmueli Model

This calculator is based on the Israeli Ministry of Transportation guidelines (Chapter 4) and uses the official formulas for roundabout feasibility checks. The tool calculates capacity (Qe) as a function of diameter and circulating volume, and derives the level of service (LOS) based on average delay per vehicle.