--- a/include/common-transit.inc.php
+++ b/include/common-transit.inc.php
@@ -45,6 +45,32 @@
 		return "";
 	}
 }
+
+$serviceAlertCause = Array(
+"UNKNOWN_CAUSE" => "Unknown cause",
+"OTHER_CAUSE" => "Other cause",
+"TECHNICAL_PROBLEM" => "Technical problem",
+"STRIKE" => "Strike",
+"DEMONSTRATION" => "Demonstration",
+"ACCIDENT" => "Accident",
+"HOLIDAY" => "Holiday",
+"WEATHER" => "Weather",
+"MAINTENANCE" => "Maintenance",
+"CONSTRUCTION" => "Construction",
+"POLICE_ACTIVITY" => "Police activity",
+"MEDICAL_EMERGENCY" => "Medical emergency"
+);
+$serviceAlertEffect = Array(
+"NO_SERVICE" => "No service",
+"REDUCED_SERVICE" => "Reduced service",
+"SIGNIFICANT_DELAYS" => "Significant delays",
+"DETOUR" => "Detour",
+"ADDITIONAL_SERVICE" => "Additional service",
+"MODIFIED_SERVICE" => "Modified service",
+"OTHER_EFFECT" => "Other effect",
+"UNKNOWN_EFFECT" => "Unknown effect",
+"STOP_MOVED" => "Stop moved");
+
 function getServiceAlerts($filter_class, $filter_id) {
 /*
 
@@ -54,14 +80,21 @@
             - stop
             - trip
             - network
-          - patterns (WHERE=)
+          - classes (WHERE=)
             - route (short_name or route_id)
             - street
             - stop
-            - trip */
+            - trip 
+            Currently support:
+            network inform
+            trip patch: stop remove
+            street inform: route inform, trip inform, stop inform
+            route patch: trip remove
+            */
 $return = Array();
-$return['header']['gtrtfs_version'] = "1";
+$return['header']['gtfs_realtime_version'] = "1";
 $return['header']['timestamp'] = time();
+$return['header']['incrementality'] =  "FULL_DATASET";
 $return['entities'] = Array();
 foreach(getCurrentAlerts() as $alert) {
 	$informedEntities = getInformedAlerts($alert['id'],$_REQUEST['filter_class'],$_REQUEST['filter_id']);
@@ -70,8 +103,12 @@
 		$entity['id'] = $alert['id'];
 		$entity['alert']['active_period']['start'] = $alert['start'];
 		$entity['alert']['active_period']['end'] = $alert['end'];
-		$entity['alert']['url']['translation'] = $alert['url'];
-		$entity['alert']['description']['translation'] = $alert['description'];
+		$entity['alert']['url']['translation']['text'] = $alert['url'];
+		$entity['alert']['url']['translation']['language'] = 'en';
+		$entity['alert']['header_text']['translation']['text'] = $alert['header'];
+		$entity['alert']['header_text']['translation']['language'] = 'en';
+		$entity['alert']['description_text']['translation']['text'] = $alert['description'];
+		$entity['alert']['description_text']['translation']['language'] = 'en';
 		
 		foreach ($informedEntities as $informedEntity) {
 			$informed = Array();
@@ -97,8 +134,8 @@
 					$id = $value;
 				}
 			}
-		$return[$class][$id]['entity'] = $entity;
-		$return[$class][$id]['action'] = $informed["x-action"];
+		$return[$class][$id][]['entity'] = $entity;
+		$return[$class][$id][]['action'] = $informed["x-action"];
 	}
 	}
 }