Raycast help?

I am trying to create a procedural and randomly generated city. It works nearly perfectly, but it tends to overlap a LOT. I am trying to use a raycast to determine if there is enough space for a road/building to spawn before it spawns anything, but it is not working. What am I doing wrongly?

Code:

 #pragma strict
 public var Crossroad: GameObject;
 public var Road: GameObject;
 public var HorizontalRoad: GameObject;
 public var HorizontalRoadDown: GameObject;
 public var DisabledRoad: GameObject;
 public var Lamp: GameObject;
 var CityLimitX1 = 500;
 var CityLimitZ1 = 500;
 var CityLimitX2 = -500;
 var CityLimitZ2 = -500;
 var i = 0;
 var Distance : float;
 static var StartCol: boolean = true;
 
 //var Number = Random.Range(1, 16);
 //static var CoordX = 
 
 
 
 //}
 
 
 function Start () {
 //var Start = true;
 
 
 var CurrentXPos = transform.position.x;
 var CurrentZPos = transform.position.z;
 var CrossroadNX = transform.position.x + 90;
 var TurnNX = transform.position.x + 60;
 var RoadNX = transform.position.x + 30;
 var Cross3wayNX = transform.position.x + 25;
 var CrossroadNZ1 = transform.position.z + 30;
 var TurnNZ = transform.position.z + 60;
 var RoadNZ = transform.position.z + 20;
 var Cross3wayNZ = transform.position.z + 30;
 var RandomNum = Random.Range(1, 5);;
 
 //var hit : RaycastHit;
 //var SphereVar = new Vector3(CurrentXPos, 0, CurrentZPos);
 //if (Physics.SphereCast(SphereVar, 30, transform.forward, hit, 30)) {
 var hit : RaycastHit;
 //var fwd: Vector3 = transform.TransformDirection(Vector3.forward);
     //if (Physics.Raycast(transform.position, fwd, 1000)) {
     if (Physics.Raycast (transform.position, transform.TransformDirection(Vector3.forward), hit)) {
         Debug.Log("There is something in front of the object!");
         Debug.Log("Failed.");
         Distance = hit.distance; 
 }
     //for (var i: int = 0; i < 10; i++) {
     if (RandomNum == 1) {
         if (CrossroadNX < CityLimitX1) {
             if (CrossroadNZ1 < CityLimitZ1) {
                 if (CrossroadNX > CityLimitX2) {
                     if (CrossroadNZ1 > CityLimitZ2) {
                     if (Distance > 90) {
                     Debug.Log("Fired Crossroad");
                     Instantiate(Crossroad, new Vector3(CurrentXPos + 60, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     Instantiate(DisabledRoad, new Vector3(CurrentXPos + 30, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     Instantiate(HorizontalRoad, new Vector3(CurrentXPos + 60, 0, CurrentZPos + 30),  Quaternion.Euler(Vector3(-90, 0, 0)));
                     Instantiate(HorizontalRoadDown, new Vector3(CurrentXPos + 60, 0, CurrentZPos - 30),  Quaternion.Euler(Vector3(-90, 0, 0)));
                     Instantiate(Road, new Vector3(CurrentXPos + 90, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     //Destroy(GetComponent(SecondCityGen));
                     GetComponent(SecondCityGen).enabled = false;
                     Debug.Log("Failed to exit script");
 }
 }
 }
 }
 }
 }
 //}
 if (RandomNum == 2) {
         if (RoadNX < CityLimitX1) {
             if (RoadNZ < CityLimitZ1) {
                 if (RoadNX > CityLimitX2) {
                     if (RoadNZ > CityLimitZ2) {
                     if (Distance > 30) {
                     Debug.Log("Fired Road1");
                     Instantiate(Road, new Vector3(CurrentXPos + 30, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     //Destroy(GetComponent(SecondCityGen));
                     GetComponent(SecondCityGen).enabled = false;
                     Debug.Log("Failed to exit script");
 }
 }
 }
 }
 }
 }
 if (RandomNum == 3) {
         if (RoadNX < CityLimitX1) {
             if (RoadNZ < CityLimitZ1) {
                 if (RoadNX > CityLimitX2) {
                     if (RoadNZ > CityLimitZ2) {
                     if (Distance > 30) {
                     Debug.Log("Fired RoadLamp");
                     Instantiate(Road, new Vector3(CurrentXPos + 30, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     Instantiate(Lamp, new Vector3(CurrentXPos + 30, 0, CurrentZPos + 6),  Quaternion.Euler(Vector3(0, 180, 0)));
                     Instantiate(Lamp, new Vector3(CurrentXPos + 30, 0, CurrentZPos - 6),  Quaternion.Euler(Vector3(0, 0, 0)));
                     //Destroy(GetComponent(SecondCityGen));
                     GetComponent(SecondCityGen).enabled = false;
                     Debug.Log("Failed to exit script");
 }
 }
 }
 }
 }
 }
 if (RandomNum == 4) {
         if (RoadNX < CityLimitX1) {
             if (RoadNZ < CityLimitZ1) {
                 if (RoadNX > CityLimitX2) {
                     if (RoadNZ > CityLimitZ2) {
                     if (Distance > 30) {
                     Debug.Log("Fired Road3");
                     Instantiate(Road, new Vector3(CurrentXPos + 30, 0, CurrentZPos),  Quaternion.Euler(Vector3(-90, 90, 0)));
                     //start = false;
 
                     GetComponent(SecondCityGen).enabled = false;
                     Debug.Log("Failed to exit script");
 
 }
 }
 }
 }
 }
 }
 }
 
 function Update () {
 if (StartCol == false) {
 var TempCol : MeshCollider;
 TempCol = GetComponent.<MeshCollider>();
 TempCol.isTrigger = false;
 Destroy(GetComponent(SecondCityGen));
 }
 }
 
 
 function OnTriggerEnter (other : Collider) {
 for (var T: int = 0; T < 50; T++) {
 if (StartCol == true) {
         Destroy(gameObject);
         }
 }
 }