Add better ferry handling

Profiles/general/ferry_speed.json

@@ -0,0 +1,35 @@
+{
+  "name": "ferry_speed",
+  "description": "Gives the expected speed for a ferry. This includes the time needed to board and the expected waiting time (if duration is present). This uses the tag '_length', which is expected to be added by the preprocessing-step.",
+  "unit": "km/h",
+  "value": {
+    "$ifDotted": {
+      "route": {
+        "ferry": "yes"
+      }
+    },
+    "then": {
+      "#": "(length (m) / (duration (minutes) + 5 minutes slack)) * 0.06 minutes/kilometer",
+      "$multiply": [
+        {
+          "#": "The default value is chosen so that it defaults to 1km/h",
+          "$default": 83.33333333333333,
+          "value": {
+            "_length": "$parse"
+          }
+        },
+        {
+          "$inv": {
+            "$sum": [
+              {
+                "duration": "$parse"
+              },
+              5
+            ]
+          }
+        },
+        0.06
+      ]
+    }
+  }
+}

Profiles/general/ferry_speed.test.csv

@@ -0,0 +1,5 @@
+expected,route,duration,interval,_length,comment
+1,ferry,,,
+2,ferry,25,,1000,25 minutes duration + 5 minutes to get on is 30 minutes total for one kilometer -> 2 km/h
+4,ferry,10,,1000,10 minutes duration + 5 minutes to get on is 15 minutes total for one kilometer -> 4km/h
+null,,,,Ferry is not set

Profiles/general/legal_maxspeed_be.json

@@ -7,8 +7,7 @@
     "$firstMatchOf": [
       "maxspeed",
       "designation",
-      "highway",
-      "route"
+      "highway"
     ],
     "value": {
       "maxspeed": "$parse",
@@ -37,10 +36,6 @@
       },
       "designation": {
         "towpath": 30
-      },
-      "route": {
-        "#": "A ferry often goes once every half-an-hour, to cross like 100m; in other words: 0.2km/h",
-        "ferry": 0.2
       }
     }
   }