Multiple Route file in laravel 5/ multiple folder for routes

I have Getting stucked with one problem. creating the folder for routes and define the different file for different route. like i have 3 type of user. admin , user1,user2. i want to create 3 different subfolder for routes. i seacrh google and implement this. but its is not working. anyone help me.

thanks

      <?php namespace App\Providers;

      use Illuminate\Routing\Router;
       use File;
       use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;

      class RouteServiceProvider extends ServiceProvider {

/**
 * This namespace is applied to the controller routes in your routes file.
 *
 * In addition, it is set as the URL generator's root namespace.
 *
 * @var string
 */
protected $namespace = 'App\Http\Controllers';

/**
 * Define your route model bindings, pattern filters, etc.
 *
 * @param  \Illuminate\Routing\Router  $router
 * @return void
 */
public function boot(Router $router)
{
    parent::boot($router);

    //
}

/**
 * Define the routes for the application.
 *
 * @param  \Illuminate\Routing\Router  $router
 * @return void
 */
public function map(Router $router)
{
    $router->group(['namespace' => $this->namespace], function($router)
    {
        foreach(File::allFiles(app_path().'/Http/Routes') as $route) {
            require_once $route->getPathname();
        }
    });
}

}

via Chebli Mohamed