问无法获取对象的属性

EN

var routesAndStations = {"Pittsburg\/Bay Point - SFIA\/Millbrae":["PITT","NCON","CONC","PHIL","WCRK","LAFY","ORIN","ROCK","MCAR","19TH","12TH","WOAK","EMBR","MONT","POWL","CIVC","16TH","24TH","GLEN","BALB","DALY","COLM","SSAN","SBRN","SFIA","MLBR"],"Millbrae\/SFIA - Pittsburg\/Bay Point":["MLBR","SFIA","SBRN","SSAN","COLM","DALY","BALB","GLEN","24TH","16TH","CIVC","POWL","MONT","EMBR","WOAK","12TH","19TH","MCAR","ROCK","ORIN","LAFY","WCRK","PHIL","CONC","NCON","PITT"]};

for(name in routesAndStations)
{
    for(var i=0;i<routesAndStations[name].length;i++)
    {
        var station = routesAndStations[name][i];
        alert(station);
    }
}

    $.ajax({
    url: "build-routes.php",
    dataType: 'json',
    success: function(routesAndStations){

      var i;
      for ( name in routesAndStations){
    // this gets the route names
       var routes = new Array();
       routes.push(name);
        routes[name] = new Array();
        i = 0;

        // this gets all the stations for each route
        for(var station in routesAndStations[name]){

            routes[name][i] = routesAndStations[name][station];
            alert(routes[name][i]);
            ++i;
        }
      }

     for(var name in routes){
        var str = "";
        str += name + ": "+routes[name][1];
        alert(str);
      }

    },
    error: function(){
      alert("fail");
    }
  });