diff --git a/hsr.php b/hsr.php
index 59ebcef..553dab6 100644
--- a/hsr.php
+++ b/hsr.php
@@ -3,4 +3,43 @@
 foreach ($lines as $line) {
     $stations[] = str_getcsv($line);
 }
-echo json_encode($stations, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
\ No newline at end of file
+
+// remove keys.
+unset($stations[0]);
+
+$geometry = [
+    'type' => 'Point'
+];
+
+foreach ($stations as $station) {
+    list($id, $name, $zipcode, $address, $lat, $lon, $future) = $station;
+
+    if (1 == $future) {
+        continue;
+    }
+
+    $geometry['coordinates'] = [(float) $lon, (float) $lat];
+    $properties = [
+        '編號' => (string) $id,
+        '站名' => $name,
+        '郵遞區號' => (int) $zipcode,
+        '地址' => $address,
+        '緯度' => (float) $lat,
+        '經度' => (float) $lon
+    ];
+    
+    $feature = [
+        'type' => 'Feature',
+        'geometry' => $geometry,
+        'properties' => $properties
+    ];
+
+    $features[] = $feature;
+}
+
+$geojson = [
+    'type' => 'FeatureCollection',
+    'features' => $features
+];
+
+echo json_encode($geojson, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
\ No newline at end of file