添加项目文件。

MetroGauges/Model/TurnOutModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MetroGauges.Model
+{
+    class TurnOutModel
+    {
+        private double v;
+        private double R;
+        private double m_B;
+        private double h_cp;
+        private double h_sc;
+        private double h_cs;
+        private double K_φs;
+        private int S;
+        #region 道岔
+        public double A => v / 3.6 * (v / 3.6) / R;
+
+        public double F => m_B * A;
+
+        public double K_φp { get; private set; }
+
+        public double ΔXqa(double y)
+        {
+            return F * ((y - h_cp) * (h_sc - h_cp) / K_φp + (y - h_cs) * (h_sc - h_cs) / K_φs) * (1 + S);
+        }
+        #endregion
+
+    }
+}