Add periodic traffic refresh (every 5 min) with cache-busting

MMM-CombinedMap.js

@@ -64,6 +64,8 @@ Module.register("MMM-CombinedMap", {
     this.currentRadarIndex = 0;
     this.animationTimer = null;
     this.availableTimestamps = [];
+    this.trafficFlowLayer = null;
+    this.trafficIncidentsLayer = null;
   },
 
   getDom: function() {
@@ -153,25 +155,45 @@ Module.register("MMM-CombinedMap", {
   },
 
   addTrafficLayer: function() {
-    // TomTom Traffic Flow tiles
-    const trafficLayer = L.tileLayer(
-      `https://api.tomtom.com/traffic/map/4/tile/flow/relative0/{z}/{x}/{y}.png?key=${this.config.tomtomApiKey}&tileSize=256`,
-      {
-        maxZoom: 18,
-        opacity: this.config.trafficOpacity
-      }
-    );
-    trafficLayer.addTo(this.map);
+    this.refreshTrafficLayers();
     
-    // Also add traffic incidents overlay
-    const incidentsLayer = L.tileLayer(
-      `https://api.tomtom.com/traffic/map/4/tile/incidents/s3/{z}/{x}/{y}.png?key=${this.config.tomtomApiKey}&tileSize=256`,
+    // Set up periodic traffic refresh (every 5 minutes)
+    setInterval(() => this.refreshTrafficLayers(), 5 * 60 * 1000);
+  },
+  
+  refreshTrafficLayers: function() {
+    // Remove existing traffic layers
+    if (this.trafficFlowLayer) {
+      this.map.removeLayer(this.trafficFlowLayer);
+    }
+    if (this.trafficIncidentsLayer) {
+      this.map.removeLayer(this.trafficIncidentsLayer);
+    }
+    
+    // Cache-buster timestamp (rounded to minute for some caching benefit)
+    const cacheBust = Math.floor(Date.now() / 60000);
+    
+    // TomTom Traffic Flow tiles
+    this.trafficFlowLayer = L.tileLayer(
+      `https://api.tomtom.com/traffic/map/4/tile/flow/relative0/{z}/{x}/{y}.png?key=${this.config.tomtomApiKey}&tileSize=256&t=${cacheBust}`,
       {
         maxZoom: 18,
         opacity: this.config.trafficOpacity
       }
     );
-    incidentsLayer.addTo(this.map);
+    this.trafficFlowLayer.addTo(this.map);
+    
+    // Traffic incidents overlay
+    this.trafficIncidentsLayer = L.tileLayer(
+      `https://api.tomtom.com/traffic/map/4/tile/incidents/s3/{z}/{x}/{y}.png?key=${this.config.tomtomApiKey}&tileSize=256&t=${cacheBust}`,
+      {
+        maxZoom: 18,
+        opacity: this.config.trafficOpacity
+      }
+    );
+    this.trafficIncidentsLayer.addTo(this.map);
+    
+    Log.info("MMM-CombinedMap: Traffic layers refreshed");
   },
 
   fetchRadarCapabilities: function() {