redirect from ngOnInit() and subsequent hooks causing reload of current component

Question

Trying to redirect to a new component from one of the hooks like ngOnInit(), ngAfterViewInit() based on a param supplied. The current component is executed multiple times if the router navigate line is hit.

worked solution:

setTimeout(() -> { this.router.navigate(link)); //recently upgraded angular 3 to 4.0.0 router       

main module :

 RouterModule.forChild([
        { path: 'referrer/:vehicle/:referrer', component: ReferrerComponent },
        { path: 'referrer/:referrer', component: ReferrerComponent },
        { path: 'vehicle', component: vehicleComponent},
    ])

route: http://localhost:4200/#/referrer/vehicle1/referrer1

ReferrerComponent:

    ngOnInit() {

          this.routeObservable = this.route.params.subscribe((params) => {

               if(params["referrer"]) { // do referrer stuff;}

               if(params["vehicle"] == "vehicle1") {

                  this.router.navigate('/vehicle'); //redirect to vehicle component
               }
         });
    }

As this happens only if a redirect actually happens, not sure where to put the re route (lifecycle) exactly.