diff --git a/js/Util.js b/js/Util.js
index 643ae0d..c3f2a3b 100644
--- a/js/Util.js
+++ b/js/Util.js
@@ -67,5 +67,35 @@ BR.Util = {
         }
         $el.remove();
         return env;
+    },
+
+    keyboardShortcutsAllowed: function(keyEvent) {
+        // Skip auto-repeating key events
+        if (keyEvent.repeat) {
+            return false;
+        }
+
+        // Suppress shortcut handling when a text or number input field is focussed
+        if (
+            document.activeElement.type == 'number' ||
+            document.activeElement.type == 'text' ||
+            document.activeElement.type == 'textarea'
+        ) {
+            return false;
+        }
+
+        // Only allow shortcuts without modifiers for now, to prevent triggering map functions
+        // when browser shortcuts are triggered (e.g. Ctrl+P for print should not add a POI)
+        if (keyEvent.ctrlKey || keyEvent.metaKey || keyEvent.altKey) {
+            return false;
+        }
+
+        // Do not allow shortcuts triggering actions behind Bootstrap's
+        // modal dialogs or when dropdown menus are opened
+        if ($('.modal.show').length || $('.dropdown.show').length) {
+            return false;
+        }
+
+        return true;
     }
 };
diff --git a/js/control/OpacitySlider.js b/js/control/OpacitySlider.js
index 14f0439..e675b2c 100644
--- a/js/control/OpacitySlider.js
+++ b/js/control/OpacitySlider.js
@@ -52,23 +52,13 @@ BR.OpacitySlider = L.Class.extend({
     },
 
     _keydownListener: function(e) {
-        // Suppress shortcut handling when a text input field is focussed
-        if (document.activeElement.type == 'text' || document.activeElement.type == 'textarea') {
-            return;
-        }
-
-        if (e.keyCode === this.options.muteKeyCode && !e.repeat) {
+        if (BR.Util.keyboardShortcutsAllowed(e) && e.keyCode === this.options.muteKeyCode) {
             this.options.callback(0);
         }
     },
 
     _keyupListener: function(e) {
-        // Suppress shortcut handling when a text input field is focussed
-        if (document.activeElement.type == 'text' || document.activeElement.type == 'textarea') {
-            return;
-        }
-
-        if (e.keyCode === this.options.muteKeyCode && !e.repeat) {
+        if (BR.Util.keyboardShortcutsAllowed(e) && e.keyCode === this.options.muteKeyCode) {
             this.options.callback(this.input.val() / 100);
         }
     },
diff --git a/js/plugin/POIMarkers.js b/js/plugin/POIMarkers.js
index 25efd33..dce84ae 100644
--- a/js/plugin/POIMarkers.js
+++ b/js/plugin/POIMarkers.js
@@ -61,13 +61,12 @@ BR.PoiMarkers = L.Control.extend({
     },
 
     _keydownListener: function(e) {
-        // Suppress shortcut handling when a text input field is focussed
-        if (document.activeElement.type == 'text' || document.activeElement.type == 'textarea') {
+        if (!BR.Util.keyboardShortcutsAllowed(e)) {
             return;
         }
-        if (e.keyCode === this.options.shortcut.draw.disable && !e.repeat) {
+        if (e.keyCode === this.options.shortcut.draw.disable) {
             this.draw(false);
-        } else if (e.keyCode === this.options.shortcut.draw.enable && !e.repeat) {
+        } else if (e.keyCode === this.options.shortcut.draw.enable) {
             this.draw(true);
         }
     },
diff --git a/js/plugin/Routing.js b/js/plugin/Routing.js
index 668818c..e9e1b2b 100644
--- a/js/plugin/Routing.js
+++ b/js/plugin/Routing.js
@@ -342,13 +342,12 @@ BR.Routing = L.Routing.extend({
     },
 
     _keydownListener: function(e) {
-        // Suppress shortcut handling when a text input field is focussed
-        if (document.activeElement.type == 'text' || document.activeElement.type == 'textarea') {
+        if (!BR.Util.keyboardShortcutsAllowed(e)) {
             return;
         }
-        if (e.keyCode === this.options.shortcut.draw.disable && !e.repeat) {
+        if (e.keyCode === this.options.shortcut.draw.disable) {
             this._draw.disable();
-        } else if (e.keyCode === this.options.shortcut.draw.enable && !e.repeat) {
+        } else if (e.keyCode === this.options.shortcut.draw.enable) {
             this._draw.enable();
         }
     },