diff --git a/goldens/circular-deps/packages.json b/goldens/circular-deps/packages.json
index 14f8a0e1a09..0637a088a01 100644
--- a/goldens/circular-deps/packages.json
+++ b/goldens/circular-deps/packages.json
@@ -1,18 +1 @@
-[
-  [
-    "packages/router/src/navigation_transition.ts",
-    "packages/router/src/operators/activate_routes.ts"
-  ],
-  [
-    "packages/router/src/navigation_transition.ts",
-    "packages/router/src/operators/check_guards.ts"
-  ],
-  [
-    "packages/router/src/navigation_transition.ts",
-    "packages/router/src/operators/recognize.ts"
-  ],
-  [
-    "packages/router/src/navigation_transition.ts",
-    "packages/router/src/operators/resolve_data.ts"
-  ]
-]
\ No newline at end of file
+[]
\ No newline at end of file
diff --git a/packages/router/src/navigation_transition.ts b/packages/router/src/navigation_transition.ts
index 60b289143ba..f209a3a9854 100644
--- a/packages/router/src/navigation_transition.ts
+++ b/packages/router/src/navigation_transition.ts
@@ -81,7 +81,7 @@ import {
   RouterState,
   RouterStateSnapshot,
 } from './router_state';
-import {Params} from './shared';
+import type {Params} from './shared';
 import {UrlHandlingStrategy} from './url_handling_strategy';
 import {isUrlTree, UrlSerializer, UrlTree} from './url_tree';
 import {Checks, getAllRouteGuards} from './utils/preactivation';
diff --git a/packages/router/src/operators/activate_routes.ts b/packages/router/src/operators/activate_routes.ts
index 46e74a8f749..ff46e0975ab 100644
--- a/packages/router/src/operators/activate_routes.ts
+++ b/packages/router/src/operators/activate_routes.ts
@@ -10,11 +10,10 @@ import {MonoTypeOperatorFunction} from 'rxjs';
 import {map} from 'rxjs/operators';
 
 import {ActivationEnd, ChildActivationEnd, Event} from '../events';
-import {NavigationTransition} from '../navigation_transition';
-import {DetachedRouteHandleInternal, RouteReuseStrategy} from '../route_reuse_strategy';
-import {ChildrenOutletContexts} from '../router_outlet_context';
+import type {NavigationTransition} from '../navigation_transition';
+import type {DetachedRouteHandleInternal, RouteReuseStrategy} from '../route_reuse_strategy';
+import type {ChildrenOutletContexts} from '../router_outlet_context';
 import {ActivatedRoute, advanceActivatedRoute, RouterState} from '../router_state';
-import {getClosestRouteInjector} from '../utils/config';
 import {nodeChildrenAsMap, TreeNode} from '../utils/tree';
 
 let warnedAboutUnsupportedInputBinding = false;
diff --git a/packages/router/src/operators/check_guards.ts b/packages/router/src/operators/check_guards.ts
index 8b6c9284b83..c14aeb18627 100644
--- a/packages/router/src/operators/check_guards.ts
+++ b/packages/router/src/operators/check_guards.ts
@@ -29,10 +29,10 @@ import {
   CanMatchFn,
   Route,
 } from '../models';
-import {navigationCancelingError, redirectingNavigationError} from '../navigation_canceling_error';
-import {NavigationTransition} from '../navigation_transition';
-import {ActivatedRouteSnapshot, RouterStateSnapshot} from '../router_state';
-import {isUrlTree, UrlSegment, UrlSerializer, UrlTree} from '../url_tree';
+import {redirectingNavigationError} from '../navigation_canceling_error';
+import type {NavigationTransition} from '../navigation_transition';
+import type {ActivatedRouteSnapshot, RouterStateSnapshot} from '../router_state';
+import {UrlSegment, UrlSerializer} from '../url_tree';
 import {wrapIntoObservable} from '../utils/collection';
 import {getClosestRouteInjector} from '../utils/config';
 import {
diff --git a/packages/router/src/operators/recognize.ts b/packages/router/src/operators/recognize.ts
index 3d13c43997c..233fc17f5c2 100644
--- a/packages/router/src/operators/recognize.ts
+++ b/packages/router/src/operators/recognize.ts
@@ -10,11 +10,11 @@ import {EnvironmentInjector, Type} from '@angular/core';
 import {MonoTypeOperatorFunction} from 'rxjs';
 import {map, mergeMap} from 'rxjs/operators';
 
-import {Route} from '../models';
-import {NavigationTransition} from '../navigation_transition';
+import type {Route} from '../models';
+import type {NavigationTransition} from '../navigation_transition';
 import {recognize as recognizeFn} from '../recognize';
-import {RouterConfigLoader} from '../router_config_loader';
-import {UrlSerializer} from '../url_tree';
+import type {RouterConfigLoader} from '../router_config_loader';
+import type {UrlSerializer} from '../url_tree';
 
 export function recognize(
   injector: EnvironmentInjector,
diff --git a/packages/router/src/operators/resolve_data.ts b/packages/router/src/operators/resolve_data.ts
index 771e172856d..641aabc1a6b 100644
--- a/packages/router/src/operators/resolve_data.ts
+++ b/packages/router/src/operators/resolve_data.ts
@@ -11,7 +11,7 @@ import {EMPTY, from, MonoTypeOperatorFunction, Observable, of, throwError} from
 import {catchError, concatMap, first, map, mapTo, mergeMap, takeLast, tap} from 'rxjs/operators';
 
 import {RedirectCommand, ResolveData} from '../models';
-import {NavigationTransition} from '../navigation_transition';
+import type {NavigationTransition} from '../navigation_transition';
 import {
   ActivatedRouteSnapshot,
   getInherited,