diff --git a/brouter-core/src/main/java/btools/router/VoiceHint.java b/brouter-core/src/main/java/btools/router/VoiceHint.java
index df39933..3d0b425 100644
--- a/brouter-core/src/main/java/btools/router/VoiceHint.java
+++ b/brouter-core/src/main/java/btools/router/VoiceHint.java
@@ -44,7 +44,7 @@ public class VoiceHint {
   float angle = Float.MAX_VALUE;
   boolean turnAngleConsumed;
   boolean needsRealTurn;
-  int maxBadPrio;
+  int maxBadPrio = -1;
 
   int roundaboutExit;
 
diff --git a/brouter-core/src/main/java/btools/router/VoiceHintList.java b/brouter-core/src/main/java/btools/router/VoiceHintList.java
index 229f4ab..215d2f7 100644
--- a/brouter-core/src/main/java/btools/router/VoiceHintList.java
+++ b/brouter-core/src/main/java/btools/router/VoiceHintList.java
@@ -10,23 +10,44 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class VoiceHintList {
-  private String transportMode;
+
+  static final int TRANS_MODE_NONE = 0;
+  static final int TRANS_MODE_FOOT = 1;
+  static final int TRANS_MODE_BIKE = 2;
+  static final int TRANS_MODE_CAR  = 3;
+
+  private int transportMode = TRANS_MODE_BIKE;
   int turnInstructionMode;
   List<VoiceHint> list = new ArrayList<>();
 
   public void setTransportMode(boolean isCar, boolean isBike) {
-    transportMode = isCar ? "car" : (isBike ? "bike" : "foot");
+    transportMode = isCar ? TRANS_MODE_CAR : (isBike ? TRANS_MODE_BIKE : TRANS_MODE_FOOT);
+  }
+
+  public void setTransportMode(int mode) {
+    transportMode = mode;
   }
 
   public String getTransportMode() {
+    String ret;
+    switch(transportMode) {
+      case TRANS_MODE_FOOT: ret = "foot"; break;
+      case TRANS_MODE_CAR : ret = "car"; break;
+      case TRANS_MODE_BIKE:
+      default: ret = "bike";
+    }
+    return ret;
+  }
+
+  public int transportMode() {
     return transportMode;
   }
 
   public int getLocusRouteType() {
-    if ("car".equals(transportMode)) {
+    if (transportMode == TRANS_MODE_CAR) {
       return 0;
     }
-    if ("bike".equals(transportMode)) {
+    if (transportMode == TRANS_MODE_BIKE) {
       return 5;
     }
     return 3; // foot