diff --git a/TrainInfomationProviderService/Program.cs b/TrainInfomationProviderService/Program.cs
index 35320de..b06a345 100644
--- a/TrainInfomationProviderService/Program.cs
+++ b/TrainInfomationProviderService/Program.cs
@@ -41,7 +41,10 @@ namespace TrainInfomationProviderService
 				var searchProvider = new TrainInfoSearchProvider();
 				var lines = searchProvider.FindDirectTrains(DateTime.Parse("2014-12-10"), "NVH", "JJG").ToArray();
 				var maxTimeRage = lines.Max(s => s.CalculatedMinutesBase);
-				var altLines = searchProvider.FindOnceTransitTrains(DateTime.Parse("2014-12-12"), "CCT", "ZHQ", new TrainTransitSearchOptions() { MaxExtraMinutes = int.MaxValue }).ToArray();
+
+				var opt = new TrainTransitSearchOptions();
+				opt.InitLimit(780);
+				var altLines = searchProvider.FindOnceTransitTrains(DateTime.Parse("2014-12-12"), "NVH", "JJG", opt).ToArray();
 
 				var availableLines = lines.Select(s => s.Train.Code + "," + s.FromStation.Name + "," + s.ToStation.Name + "," + s.ElapsedTime).ToArray();
 				Array.ForEach(altLines.Select(s =>
diff --git a/TrainInfomationProviderService/TrainInfo/Entities/Train.cs b/TrainInfomationProviderService/TrainInfo/Entities/Train.cs
index e529512..545d23f 100644
--- a/TrainInfomationProviderService/TrainInfo/Entities/Train.cs
+++ b/TrainInfomationProviderService/TrainInfo/Entities/Train.cs
@@ -123,5 +123,18 @@ namespace TrainInfomationProviderService.TrainInfo.Entities
 				return _trainClass ?? '*';
 			}
 		}
+
+		/// <summary>
+		/// 是否是高速列车
+		/// </summary>
+		[JsonIgnore]
+		public bool IsHighSpeedClass
+		{
+			get
+			{
+				var c = TrainClass;
+				return c == 'G' || c == 'D' || c == 'C';
+			}
+		}
 	}
 }
diff --git a/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitOnceResultCollection.cs b/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitOnceResultCollection.cs
index be5107c..6f7fd49 100644
--- a/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitOnceResultCollection.cs
+++ b/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitOnceResultCollection.cs
@@ -173,7 +173,7 @@ namespace TrainInfomationProviderService.TrainInfo.Entities
 			{
 				case 'C':
 				case 'G':
-					return 30+extraTime;
+					return 30 + extraTime;
 				case 'D':
 					return 30 + extraTime;
 				case 'Z':
@@ -320,6 +320,16 @@ namespace TrainInfomationProviderService.TrainInfo.Entities
 					_list.Remove(line);
 				}
 			}
+
+			//如果线路数超过五条，则砍掉时间太多的
+			if (Options.StartCutLongRunningCount <= _list.Count)
+			{
+				//基础时间
+				var times = _list.Select(s => s.FirstElapsedTime.Add(s.SecondElapsedTime)).OrderBy(s => s).Skip((int)(_list.Count * Options.CutLongRunningSampleRate)).Max();
+				var maxTime = (long)(times.Ticks * Options.CutLongRunningRate);
+
+				Array.ForEach(_list.Where(s => (s.SecondElapsedTime + s.FirstElapsedTime).Ticks > maxTime).ToArray(), _ => _list.Remove(_));
+			}
 		}
 
 		#endregion
@@ -328,7 +338,70 @@ namespace TrainInfomationProviderService.TrainInfo.Entities
 
 		void ProcessPriority()
 		{
-			
+			//对换乘站点计算优先级
+			var stData = _list.GroupBy(s => s.First.ToStation).Select(s => new KeyValuePair<StationDetailInfo, TrainTransitOnceResult[]>(s.Key, s.ToArray())).ToList();
+
+			stData.Sort((x, y) =>
+			{
+				//前车高铁/动车等，优先推荐
+				var fhc1 = x.Value.Count(_ => _.First.Train.IsHighSpeedClass);
+				var shc1 = y.Value.Count(_ => _.First.Train.IsHighSpeedClass);
+				if (shc1 != fhc1)
+					return shc1 < fhc1 ? 1 : -1;
+
+				//否则推荐后车的高铁/动车
+				var fhc2 = x.Value.Count(_ => _.Second.Train.IsHighSpeedClass);
+				var shc2 = y.Value.Count(_ => _.Second.Train.IsHighSpeedClass);
+				if (shc2 != fhc2)
+					return shc1 < fhc1 ? 1 : -1;
+
+				//如果都米有，则按线路数推荐
+				if (x.Value.Length != y.Value.Length)
+					return y.Value.Length - x.Value.Length;
+
+				//线路数也相同。。。。那好像没啥再区别的了
+				return 0;
+			});
+			//对应起排序
+			var stationWeight = new Dictionary<StationDetailInfo, int>(stData.Count);
+			for (var i = 0; i < stData.Count; i++)
+			{
+				stationWeight.Add(stData[i].Key, i);
+			}
+
+			//分组排序
+			_list.Sort((x, y) =>
+			{
+				//不推荐，按不推荐来排序
+				if (x.NotRecommand ^ y.NotRecommand)
+					return x.NotRecommand ? 1 : -1;
+
+				//车站不同，按车站来排序
+				if (x.First.To != y.First.To)
+				{
+					return stationWeight[x.First.ToStation] - stationWeight[y.First.ToStation];
+				}
+				//按前车是否是高速车排序
+				if (x.First.Train.IsHighSpeedClass ^ y.First.Train.IsHighSpeedClass)
+					return x.First.Train.IsHighSpeedClass ? -1 : 1;
+				//按后车是否是高速车排序
+				if (x.Second.Train.IsHighSpeedClass ^ y.Second.Train.IsHighSpeedClass)
+					return x.Second.Train.IsHighSpeedClass ? -1 : 1;
+
+				//如果到的时间是不推荐的时间
+				var xIsTimeNotRecommand = x.FirstTrainArriveDate.Hour < 6 || x.FirstTrainArriveDate.Hour >= 23;
+				var yIsTimeNotRecommand = y.FirstTrainArriveDate.Hour < 6 || y.FirstTrainArriveDate.Hour >= 23;
+				if (xIsTimeNotRecommand ^ yIsTimeNotRecommand)
+					return xIsTimeNotRecommand ? 1 : -1;
+
+				//按总耗时排序
+				var ttl1 = x.First.ElapsedTime + x.SecondElapsedTime;
+				var ttl2 = y.First.ElapsedTime + y.SecondElapsedTime;
+
+				if (ttl1 != ttl2)
+					return ttl1 < ttl2 ? -1 : 1;
+				return 0;
+			});
 		}
 
 		#endregion
diff --git a/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitSearchOptions.cs b/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitSearchOptions.cs
index df2962c..a146c1b 100644
--- a/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitSearchOptions.cs
+++ b/TrainInfomationProviderService/TrainInfo/Entities/TrainTransitSearchOptions.cs
@@ -13,17 +13,60 @@ namespace TrainInfomationProviderService.TrainInfo.Entities
 		/// </summary>
 		public int MaxExtraMinutes { get; set; }
 
+		public void InitLimit(int baseMinutes)
+		{
+			if (baseMinutes < 120)
+			{
+				//2小时内的车最大允许到6小时
+				MaxExtraMinutes = baseMinutes*3;
+			}
+			else if (baseMinutes < 180)
+			{
+				MaxExtraMinutes = (int)(baseMinutes * 2.5);
+			}
+			else if (baseMinutes < 300)
+			{
+				MaxExtraMinutes = (int)(baseMinutes * 2);
+			}
+			else if (baseMinutes < 900)
+			{
+				MaxExtraMinutes = (int)(baseMinutes * 1.5);
+			}
+			else
+			{
+				MaxExtraMinutes = (int)(baseMinutes * 1.3);
+			}
+		}
+
 		/// <summary>
 		/// 同一个车次最高保持的换乘站数
 		/// </summary>
 		public int SameLineMaxKeepStations { get; set; }
 
+		/// <summary>
+		/// 当换乘线路数超过此数目时，砍掉超过时间的
+		/// </summary>
+		public int StartCutLongRunningCount { get; set; }
+
+		/// <summary>
+		/// 砍掉超过时间比例
+		/// </summary>
+		public double CutLongRunningRate { get; set; }
+
+		/// <summary>
+		/// 砍掉时间超过比例时，采样的最高保证比例
+		/// </summary>
+		public double CutLongRunningSampleRate { get; set; }
+
 		/// <summary>
 		/// 创建 <see cref="TrainTransitSearchOptions" />  的新实例(TrainTransitSearchOptions)
 		/// </summary>
 		public TrainTransitSearchOptions()
 		{
 			SameLineMaxKeepStations = 3;
+			CutLongRunningRate = 1.5;
+			StartCutLongRunningCount = 5;
+			CutLongRunningSampleRate = 0.7;
 		}
 	}
 }