add try catch and make it static

src/baldr/graphtile.cc

@@ -368,11 +368,11 @@ void GraphTile::Initialize(const GraphId& graphid) {
   } else {
     lane_connectivity_size_ = header_->end_offset() - header_->lane_connectivity_offset();
   }
-
+   /*
   try {
     live_speed_fading_sec_ = config().get<float>("baldr.live_speed_fading_sec", 3600);
   } catch (const ConfigUninitializedException& e) { live_speed_fading_sec_ = 3600; }
-
+  */
   // For reference - how to use the end offset to set size of an object (that
   // is not fixed size and count).
   // example_size_ = header_->end_offset() - header_->example_offset();

valhalla/baldr/graphtile.h

@@ -653,7 +653,9 @@ class GraphTile {
     // TODO(danpat): for short-ish durations along the route, we should fade live
     //               speeds into any historic/predictive/average value we'd normally use
 
-    double live_speed_fade = 1. / live_speed_fading_sec_;
+    try {
+      static double live_speed_fade = 1. / config().get<float>("baldr.live_speed_fading_sec", 3600);
+    } catch (const ConfigUninitializedException& e) { static double live_speed_fade = 1. / 3600; }
 
     // This parameter describes the weight of live-traffic on a specific edge. In the beginning of the
     // route live-traffic gives more information about current congestion situation. But the further
@@ -886,8 +888,10 @@ class GraphTile {
   // Predicted speeds
   PredictedSpeeds predictedspeeds_;
 
+  /*
   // Time (in seconds) over which live speed will be faded into other traffic speed sources
   float live_speed_fading_sec_;
+  */
 
   // Map of stop one stops in this tile.
   std::unordered_map<std::string, GraphId> stop_one_stops;