Index: src_plugins/rbs_routing/stretch.c
===================================================================
--- src_plugins/rbs_routing/stretch.c	(revision 38789)
+++ src_plugins/rbs_routing/stretch.c	(revision 38790)
@@ -1,14 +1,19 @@
+static int coll_ingore_tn_line(grbs_t *grbs, grbs_2net_t *tn, grbs_line_t *l)
+{
+	rnd_trace("ign coll line\n");
+	return 1;
+}
 
-static void coll_report_arc_cb(grbs_t *grbs, grbs_2net_t *tn, grbs_2net_t *coll_tn, grbs_arc_t *coll_arc)
+static int coll_ingore_tn_arc(grbs_t *grbs, grbs_2net_t *tn, grbs_arc_t *a)
 {
-	rnd_trace("coll arc report\n");
+	rnd_trace("ign coll arc\n");
+	return 1;
 }
 
-static void coll_report_pt_cb(grbs_t *grbs, grbs_2net_t *tn, grbs_point_t *coll_pt)
+static int coll_ingore_tn_point(grbs_t *grbs, grbs_2net_t *tn, grbs_point_t *p)
 {
-	rbsr_stretch_t *rbss = grbs->user_data;
-	rnd_trace("coll pt report at %f;%f\n", coll_pt->x, coll_pt->y);
-	rbss->coll_pt = coll_pt;
+	rnd_trace("ign coll pt\n");
+	return 1;
 }
 
 
@@ -23,8 +28,9 @@
 	rbsr_map_debug_dump(&rbss->map, "rbss1.dump");
 
 	rbss->map.grbs.user_data = rbss;
-	rbss->map.grbs.coll_report_arc_cb = coll_report_arc_cb;
-	rbss->map.grbs.coll_report_pt_cb = coll_report_pt_cb;
+	rbss->map.grbs.coll_ingore_tn_line = coll_ingore_tn_line;
+	rbss->map.grbs.coll_ingore_tn_arc = coll_ingore_tn_arc;
+	rbss->map.grbs.coll_ingore_tn_point = coll_ingore_tn_point;
 
 	gl = htpp_get(&rbss->map.robj2grbs, line);
 	if (gl == NULL) {
@@ -84,7 +90,7 @@
 
 int rbsr_stretch_line_to_coords(rbsr_stretch_t *rbss, rnd_coord_t tx, rnd_coord_t ty)
 {
-	grbs_addr_t *a1, *a2, *a3 = NULL;
+	grbs_addr_t *a1, *a2;
 	if (rbss->via != NULL) {
 		int seg;
 
@@ -118,16 +124,8 @@
 	rbss->to.obj.arc->new_in_use = 0; /* avoid spiral detection */
 	a2 = path_path_next_to_addr(&rbss->map.grbs, rbss->tn, a1, &rbss->to);
 	if (a2 == NULL) {
-		if (rbss->coll_pt != NULL) {
-			rnd_trace("route around coll pt\n");
-			a2 = grbs_path_next(&rbss->map.grbs, rbss->tn, a1, rbss->coll_pt, 0);
-			a3 = path_path_next_to_addr(&rbss->map.grbs, rbss->tn, a2, &rbss->to);
-			assert(a3 != NULL);
-		}
-		else {
-			rnd_message(RND_MSG_ERROR, "rbsr_stretch_line_to_coord(): failed to route to a2\n");
-			return -1;
-		}
+		rnd_message(RND_MSG_ERROR, "rbsr_stretch_line_to_coord(): failed to route to a2\n");
+		return -1;
 	}
 
 	rbsr_map_debug_draw(&rbss->map, "rbss3.svg");
@@ -135,8 +133,6 @@
 
 
 	/* realize backward */
-	if (a3 != NULL)
-		grbs_path_realize(&rbss->map.grbs,rbss->tn, a3, 0);
 	grbs_path_realize(&rbss->map.grbs,rbss->tn, a2, 0);
 	grbs_path_realize(&rbss->map.grbs, rbss->tn, a1, 0);
 	grbs_path_realize(&rbss->map.grbs, rbss->tn, &rbss->from, 0);
Index: src_plugins/rbs_routing/stretch.h
===================================================================
--- src_plugins/rbs_routing/stretch.h	(revision 38789)
+++ src_plugins/rbs_routing/stretch.h	(revision 38790)
@@ -5,8 +5,6 @@
 
 	grbs_point_t *via;
 
-	/* collision */
-	grbs_point_t *coll_pt;
 } rbsr_stretch_t;