links are broken while using Url Rewriting

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ASP.NET

i use url rewrite code in my project as below

protected void Application_Start(object sender, EventArgs e)
       {
           RegisterRoutes(RouteTable.Routes);

       }
void RegisterRoutes(RouteCollection routes)
       {
           routes.MapPageRoute("RestaurantRoute", "Restaurant/{City}/{RestaurantName}/{id}", "~/Restaurant/Restaurant.aspx",
               new RouteValueDictionary { { "id", "17348" } },         // default value
               new RouteValueDictionary { { "id", @"^\d+$" } });   // constraint e.g. only numerals

       }

it works, but links on Restaurant.aspx page are changed. my actual image link is

<img id="Img2" src="~/Image/locationico.png" height="20"  runat="server" />

after using url rewrite it takes something like that

<img id="Img2" src="~/Restaurant/{City}/{RestaurantName}/{id}/Image/locationico.png" height="20"  runat="server" />

please help me to solve problem