diff --git a/core/lib/Drupal/Core/Access/AccessManager.php b/core/lib/Drupal/Core/Access/AccessManager.php
index 5e935e0..5959fd0 100644
--- a/core/lib/Drupal/Core/Access/AccessManager.php
+++ b/core/lib/Drupal/Core/Access/AccessManager.php
@@ -227,7 +227,7 @@ public function checkNamedRoute($route_name, array $parameters = array(), Reques
   public function check(Route $route, Request $request) {
     $checks = $route->getOption('_access_checks') ?: array();
 
-    $conjunction = $route->getOption('_access_mode') ?: 'ANY';
+    $conjunction = $route->getOption('_access_mode') ?: 'ALL';
 
     if ($conjunction == 'ALL') {
       return $this->checkAll($checks, $route, $request);
diff --git a/core/modules/block/block.routing.yml b/core/modules/block/block.routing.yml
index 5b87e2f..5827975 100644
--- a/core/modules/block/block.routing.yml
+++ b/core/modules/block/block.routing.yml
@@ -2,8 +2,6 @@ block.admin_demo:
   path: '/admin/structure/block/demo/{theme}'
   defaults:
     _content: '\Drupal\block\Controller\BlockController::demo'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _access_theme: 'TRUE'
     _permission: 'administer blocks'
diff --git a/core/modules/block/lib/Drupal/block/Routing/RouteSubscriber.php b/core/modules/block/lib/Drupal/block/Routing/RouteSubscriber.php
index f60e51a..1931191 100644
--- a/core/modules/block/lib/Drupal/block/Routing/RouteSubscriber.php
+++ b/core/modules/block/lib/Drupal/block/Routing/RouteSubscriber.php
@@ -48,9 +48,6 @@ public function routes(RouteBuildEvent $event) {
         array(
           '_access_theme' => 'TRUE',
           '_permission' => 'administer blocks',
-        ),
-        array(
-          '_access_mode' => 'ALL',
         )
       );
       $collection->add("block.admin_display_$key", $route);
diff --git a/core/modules/book/book.routing.yml b/core/modules/book/book.routing.yml
index 39aff5c..4d28c2d 100644
--- a/core/modules/book/book.routing.yml
+++ b/core/modules/book/book.routing.yml
@@ -23,8 +23,6 @@ book.export:
   path: '/book/export/{type}/{node}'
   defaults:
     _controller: '\Drupal\book\Controller\BookController::bookExport'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'access printer-friendly version'
     _entity_access: 'node.view'
@@ -33,8 +31,6 @@ book.outline:
   path: '/node/{node}/outline'
   defaults:
     _entity_form: 'node.book_outline'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'administer book outlines'
     _entity_access: 'node.view'
@@ -44,8 +40,6 @@ book.admin_edit:
   defaults:
     _form: 'Drupal\book\Form\BookAdminEditForm'
     _title: 'Re-order book pages and change titles'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'administer book outlines'
     _entity_access: 'node.view'
diff --git a/core/modules/content_translation/lib/Drupal/content_translation/Routing/ContentTranslationRouteSubscriber.php b/core/modules/content_translation/lib/Drupal/content_translation/Routing/ContentTranslationRouteSubscriber.php
index 03e5d75..561f110 100644
--- a/core/modules/content_translation/lib/Drupal/content_translation/Routing/ContentTranslationRouteSubscriber.php
+++ b/core/modules/content_translation/lib/Drupal/content_translation/Routing/ContentTranslationRouteSubscriber.php
@@ -62,6 +62,7 @@ public function routes(RouteBuildEvent $event) {
             '_permission' => 'translate any entity',
           ),
           array(
+            '_access_mode' => 'ANY',
             'parameters' => array(
               'entity' => array(
                 'type' => 'entity:' . $entity_type,
@@ -85,6 +86,7 @@ public function routes(RouteBuildEvent $event) {
             '_access_content_translation_manage' => 'create',
           ),
           array(
+            '_access_mode' => 'ANY',
             'parameters' => array(
               'entity' => array(
                 'type' => 'entity:' . $entity_type,
@@ -106,6 +108,7 @@ public function routes(RouteBuildEvent $event) {
             '_access_content_translation_manage' => 'update',
           ),
           array(
+            '_access_mode' => 'ANY',
             'parameters' => array(
               'entity' => array(
                 'type' => 'entity:' . $entity_type,
diff --git a/core/modules/edit/edit.routing.yml b/core/modules/edit/edit.routing.yml
index 27bced7..41acaac 100644
--- a/core/modules/edit/edit.routing.yml
+++ b/core/modules/edit/edit.routing.yml
@@ -16,8 +16,6 @@ edit.field_form:
   path: '/edit/form/{entity_type}/{entity}/{field_name}/{langcode}/{view_mode_id}'
   defaults:
     _controller: '\Drupal\edit\EditController::fieldForm'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'access in-place editing'
     _access_edit_entity_field: 'TRUE'
@@ -26,8 +24,6 @@ edit.entity_save:
   path: '/edit/entity/{entity_type}/{entity}'
   defaults:
     _controller: '\Drupal\edit\EditController::entitySave'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'access in-place editing'
     _access_edit_entity: 'TRUE'
diff --git a/core/modules/editor/editor.routing.yml b/core/modules/editor/editor.routing.yml
index 46b4fba..3308dd0 100644
--- a/core/modules/editor/editor.routing.yml
+++ b/core/modules/editor/editor.routing.yml
@@ -2,8 +2,6 @@ editor.field_untransformed_text:
   path: '/editor/{entity_type}/{entity}/{field_name}/{langcode}/{view_mode_id}'
   defaults:
     _controller: '\Drupal\editor\EditorController::getUntransformedText'
-  options:
-    _access_mode: 'ALL'
   requirements:
     _permission: 'access in-place editing'
     _access_edit_entity_field: 'TRUE'
diff --git a/core/modules/filter/filter.routing.yml b/core/modules/filter/filter.routing.yml
index 93bb987..92f5672 100644
--- a/core/modules/filter/filter.routing.yml
+++ b/core/modules/filter/filter.routing.yml
@@ -38,8 +38,6 @@ filter.admin_disable:
   path: '/admin/config/content/formats/manage/{filter_format}/disable'
   defaults:
     _entity_form: 'filter_format.disable'
-  options:
-     _access_mode: 'ALL'
   requirements:
     _filter_disable_format_access: 'TRUE'
     _permission: 'administer filters'
diff --git a/core/modules/node/node.routing.yml b/core/modules/node/node.routing.yml
index c2a4ff1..4108f1a 100644
--- a/core/modules/node/node.routing.yml
+++ b/core/modules/node/node.routing.yml
@@ -17,6 +17,8 @@ node.add_page:
   defaults:
     _title: 'Add page'
     _content: '\Drupal\node\Controller\NodeController::addPage'
+  options:
+    _access_mode: 'ANY'
   requirements:
     _permission: 'administer content types'
     _node_add_access: 'node'
diff --git a/core/modules/rest/lib/Drupal/rest/Plugin/ResourceBase.php b/core/modules/rest/lib/Drupal/rest/Plugin/ResourceBase.php
index 413cd8d..9100f45 100644
--- a/core/modules/rest/lib/Drupal/rest/Plugin/ResourceBase.php
+++ b/core/modules/rest/lib/Drupal/rest/Plugin/ResourceBase.php
@@ -92,6 +92,8 @@ public function routes() {
         // The HTTP method is a requirement for this route.
         '_method' => $method,
         '_permission' => "restful $lower_method $this->pluginId",
+      ), array(
+        '_access_mode' => 'ANY',
       ));
 
       switch ($method) {
diff --git a/core/modules/search/lib/Drupal/search/Routing/SearchRouteSubscriber.php b/core/modules/search/lib/Drupal/search/Routing/SearchRouteSubscriber.php
index 02bfd03..5564ba4 100644
--- a/core/modules/search/lib/Drupal/search/Routing/SearchRouteSubscriber.php
+++ b/core/modules/search/lib/Drupal/search/Routing/SearchRouteSubscriber.php
@@ -64,10 +64,7 @@ public function routes(RouteBuildEvent $event) {
         '_search_plugin_view_access' => $plugin_id,
         '_permission' => 'search content',
       );
-      $options = array(
-        '_access_mode' => 'ALL',
-      );
-      $route = new Route($path, $defaults, $requirements, $options);
+      $route = new Route($path, $defaults, $requirements);
       $collection->add('search.view_' . $plugin_id, $route);
     }
   }
diff --git a/core/modules/search/search.routing.yml b/core/modules/search/search.routing.yml
index b71c85b..6780e69 100644
--- a/core/modules/search/search.routing.yml
+++ b/core/modules/search/search.routing.yml
@@ -19,8 +19,6 @@ search.view:
     _content: '\Drupal\search\Controller\SearchController::searchView'
     plugin_id: NULL
     keys: ''
-  options:
-    _access_mode: 'ALL'
   requirements:
     keys: '.+'
     _permission: 'search content'
diff --git a/core/modules/system/tests/modules/router_test/router_test.routing.yml b/core/modules/system/tests/modules/router_test/router_test.routing.yml
index 0aab01a..3217c98 100644
--- a/core/modules/system/tests/modules/router_test/router_test.routing.yml
+++ b/core/modules/system/tests/modules/router_test/router_test.routing.yml
@@ -48,6 +48,8 @@ router_test.8:
 
 router_test.9:
   path: '/router_test/test9'
+  options:
+    _access_mode: 'ANY'
   defaults:
     _controller: '\Drupal\router_test\TestControllers::test8'
   requirements:
diff --git a/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php b/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
index 097cdd3..d12f5c0 100644
--- a/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/Access/AccessManagerTest.php
@@ -183,6 +183,13 @@ public function providerTestCheckConjunctions() {
       'expected' => FALSE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_4',
+      'condition_one' => AccessCheckInterface::ALLOW,
+      'condition_two' => AccessCheckInterface::KILL,
+      'expected' => FALSE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ALL',
       'name' => 'test_route_5',
       'condition_one' => AccessCheckInterface::ALLOW,
@@ -190,6 +197,13 @@ public function providerTestCheckConjunctions() {
       'expected' => FALSE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_5',
+      'condition_one' => AccessCheckInterface::ALLOW,
+      'condition_two' => AccessCheckInterface::DENY,
+      'expected' => FALSE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ALL',
       'name' => 'test_route_6',
       'condition_one' => AccessCheckInterface::KILL,
@@ -197,6 +211,13 @@ public function providerTestCheckConjunctions() {
       'expected' => FALSE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_6',
+      'condition_one' => AccessCheckInterface::KILL,
+      'condition_two' => AccessCheckInterface::DENY,
+      'expected' => FALSE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ALL',
       'name' => 'test_route_7',
       'condition_one' => AccessCheckInterface::ALLOW,
@@ -204,6 +225,13 @@ public function providerTestCheckConjunctions() {
       'expected' => TRUE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_7',
+      'condition_one' => AccessCheckInterface::ALLOW,
+      'condition_two' => AccessCheckInterface::ALLOW,
+      'expected' => TRUE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ALL',
       'name' => 'test_route_8',
       'condition_one' => AccessCheckInterface::KILL,
@@ -211,6 +239,13 @@ public function providerTestCheckConjunctions() {
       'expected' => FALSE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_8',
+      'condition_one' => AccessCheckInterface::KILL,
+      'condition_two' => AccessCheckInterface::KILL,
+      'expected' => FALSE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ALL',
       'name' => 'test_route_9',
       'condition_one' => AccessCheckInterface::DENY,
@@ -218,6 +253,13 @@ public function providerTestCheckConjunctions() {
       'expected' => FALSE,
     );
     $access_configurations[] = array(
+      'conjunction' => NULL,
+      'name' => 'test_route_9',
+      'condition_one' => AccessCheckInterface::DENY,
+      'condition_two' => AccessCheckInterface::DENY,
+      'expected' => FALSE,
+    );
+    $access_configurations[] = array(
       'conjunction' => 'ANY',
       'name' => 'test_route_10',
       'condition_one' => AccessCheckInterface::ALLOW,
@@ -282,7 +324,7 @@ public function testCheckConjunctions($conjunction, $name, $condition_one, $cond
       '_access' => static::convertAccessCheckInterfaceToString($condition_one),
       '_test_access' => static::convertAccessCheckInterfaceToString($condition_two),
     );
-    $options = array('_access_mode' => $conjunction);
+    $options = $conjunction ? array('_access_mode' => $conjunction) : array();
     $route = new Route($name, array(), $requirements, $options);
     $route_collection->add($name, $route);