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--- /dev/null
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diff --git a/urdf/signs/dae/alvar10.dae b/urdf/signs/dae/alvar10.dae
new file mode 100644
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--- /dev/null
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diff --git a/urdf/signs/dae/alvar11.dae b/urdf/signs/dae/alvar11.dae
new file mode 100644
index 0000000000000000000000000000000000000000..fac2c367c7dfed351b500ab39411de3a6dc50c69
--- /dev/null
+++ b/urdf/signs/dae/alvar11.dae
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new file mode 100644
index 0000000000000000000000000000000000000000..545d50c39ae7ebd3206979f8cab764dab61ad0cf
--- /dev/null
+++ b/urdf/signs/dae/alvar12.dae
@@ -0,0 +1,170 @@
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+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
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diff --git a/urdf/signs/dae/alvar13.dae b/urdf/signs/dae/alvar13.dae
new file mode 100644
index 0000000000000000000000000000000000000000..ce69de2256573deb3ae612196aa9017e79d55b23
--- /dev/null
+++ b/urdf/signs/dae/alvar13.dae
@@ -0,0 +1,170 @@
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+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
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diff --git a/urdf/signs/dae/alvar14.dae b/urdf/signs/dae/alvar14.dae
new file mode 100644
index 0000000000000000000000000000000000000000..25fb22510fff5f1b59f32c6714dcb6765896e389
--- /dev/null
+++ b/urdf/signs/dae/alvar14.dae
@@ -0,0 +1,170 @@
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+      <authoring_tool>FBX COLLADA exporter</authoring_tool>
+      <comments></comments>
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+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
+    <unit meter="1.0" name="meter"></unit>
+    <up_axis>Y_UP</up_axis></asset>
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diff --git a/urdf/signs/dae/alvar15.dae b/urdf/signs/dae/alvar15.dae
new file mode 100644
index 0000000000000000000000000000000000000000..a79998d3e601cef3490bd8888d5d3b3028cc0b75
--- /dev/null
+++ b/urdf/signs/dae/alvar15.dae
@@ -0,0 +1,170 @@
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+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
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diff --git a/urdf/signs/dae/alvar16.dae b/urdf/signs/dae/alvar16.dae
new file mode 100644
index 0000000000000000000000000000000000000000..d56bdb4c387f21bf8076782712d17d5f2ab43e93
--- /dev/null
+++ b/urdf/signs/dae/alvar16.dae
@@ -0,0 +1,170 @@
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+      <authoring_tool>FBX COLLADA exporter</authoring_tool>
+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
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diff --git a/urdf/signs/dae/alvar17.dae b/urdf/signs/dae/alvar17.dae
new file mode 100644
index 0000000000000000000000000000000000000000..5ed8bd994c2fd8fd3189fba3d0bf778b2ab5f62b
--- /dev/null
+++ b/urdf/signs/dae/alvar17.dae
@@ -0,0 +1,170 @@
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+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
+    <unit meter="1.0" name="meter"></unit>
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diff --git a/urdf/signs/dae/alvar2.dae b/urdf/signs/dae/alvar2.dae
new file mode 100644
index 0000000000000000000000000000000000000000..e75f1ed4f0711e4ece5492a9a0e036e47d868aa1
--- /dev/null
+++ b/urdf/signs/dae/alvar2.dae
@@ -0,0 +1,170 @@
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+      <author></author>
+      <authoring_tool>FBX COLLADA exporter</authoring_tool>
+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
+    <unit meter="1.0" name="meter"></unit>
+    <up_axis>Y_UP</up_axis></asset>
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diff --git a/urdf/signs/dae/alvar3.dae b/urdf/signs/dae/alvar3.dae
new file mode 100644
index 0000000000000000000000000000000000000000..5909afecb7af0677c73a8d5bff56b165a42be541
--- /dev/null
+++ b/urdf/signs/dae/alvar3.dae
@@ -0,0 +1,170 @@
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+      <authoring_tool>FBX COLLADA exporter</authoring_tool>
+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
+    <unit meter="1.0" name="meter"></unit>
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diff --git a/urdf/signs/dae/alvar4.dae b/urdf/signs/dae/alvar4.dae
new file mode 100644
index 0000000000000000000000000000000000000000..0f0925be91f9125a90c50a122f9f824ab801118d
--- /dev/null
+++ b/urdf/signs/dae/alvar4.dae
@@ -0,0 +1,170 @@
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diff --git a/urdf/signs/dae/alvar5.dae b/urdf/signs/dae/alvar5.dae
new file mode 100644
index 0000000000000000000000000000000000000000..a485cfab68fbaa990f4611c0a420b749d51420ad
--- /dev/null
+++ b/urdf/signs/dae/alvar5.dae
@@ -0,0 +1,170 @@
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diff --git a/urdf/signs/dae/alvar6.dae b/urdf/signs/dae/alvar6.dae
new file mode 100644
index 0000000000000000000000000000000000000000..1a48148cf66161cd161be166c242c3cda3b88ecb
--- /dev/null
+++ b/urdf/signs/dae/alvar6.dae
@@ -0,0 +1,170 @@
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diff --git a/urdf/signs/dae/alvar7.dae b/urdf/signs/dae/alvar7.dae
new file mode 100644
index 0000000000000000000000000000000000000000..8d1ff38441647ac3630bdc18caf7bc71c3450c89
--- /dev/null
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diff --git a/urdf/signs/dae/alvar8.dae b/urdf/signs/dae/alvar8.dae
new file mode 100644
index 0000000000000000000000000000000000000000..5ad3f9bed435c6d5141f0450f863780508b74088
--- /dev/null
+++ b/urdf/signs/dae/alvar8.dae
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+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
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diff --git a/urdf/signs/dae/alvar9.dae b/urdf/signs/dae/alvar9.dae
new file mode 100644
index 0000000000000000000000000000000000000000..33609e400302f444e50feb3cd76eee1585cbb838
--- /dev/null
+++ b/urdf/signs/dae/alvar9.dae
@@ -0,0 +1,170 @@
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diff --git a/urdf/signs/dae/giveway.dae b/urdf/signs/dae/giveway.dae
new file mode 100644
index 0000000000000000000000000000000000000000..02902bac279ff863997ee156288e0c7447761ada
--- /dev/null
+++ b/urdf/signs/dae/giveway.dae
@@ -0,0 +1,170 @@
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new file mode 100644
index 0000000000000000000000000000000000000000..188d34042a862392b7f21e00eae5fb87da7bd65c
--- /dev/null
+++ b/urdf/signs/dae/haveway.dae
@@ -0,0 +1,170 @@
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diff --git a/urdf/signs/dae/max_100.dae b/urdf/signs/dae/max_100.dae
new file mode 100644
index 0000000000000000000000000000000000000000..1faf1f9b5dfafb0399dd264f0c98b1d0e85db162
--- /dev/null
+++ b/urdf/signs/dae/max_100.dae
@@ -0,0 +1,170 @@
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+      <comments></comments>
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+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
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diff --git a/urdf/signs/dae/max_50.dae b/urdf/signs/dae/max_50.dae
new file mode 100644
index 0000000000000000000000000000000000000000..05c2e51875adbf5a1695b62f530269b4b68cdf9f
--- /dev/null
+++ b/urdf/signs/dae/max_50.dae
@@ -0,0 +1,170 @@
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+      <comments></comments>
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+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
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diff --git a/urdf/signs/dae/no_entry.dae b/urdf/signs/dae/no_entry.dae
new file mode 100644
index 0000000000000000000000000000000000000000..8e6f152a621838c595dc71a4aa5481bac3184c04
--- /dev/null
+++ b/urdf/signs/dae/no_entry.dae
@@ -0,0 +1,170 @@
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index 0000000000000000000000000000000000000000..4847372780f0b48fb400fe227bd676cec537a7f3
--- /dev/null
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index 0000000000000000000000000000000000000000..208c90c2d498515ff76cf2f1385c9166224039e1
--- /dev/null
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new file mode 100644
index 0000000000000000000000000000000000000000..1dd413c467ec6190558a5375bc82f8d364146907
--- /dev/null
+++ b/urdf/signs/dae/parking.dae
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diff --git a/urdf/signs/dae/pedestrian_crossing.dae b/urdf/signs/dae/pedestrian_crossing.dae
new file mode 100644
index 0000000000000000000000000000000000000000..1e6a68c7c3cddd4c19afa7eb1aa38896431251f8
--- /dev/null
+++ b/urdf/signs/dae/pedestrian_crossing.dae
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+        </source>
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+          <float_array id="image-UV0-array" count="8">
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+        </vertices>
+        <triangles count="2" material="Material #36">
+          <input semantic="VERTEX" offset="0" source="#image-VERTEX"/>
+          <input semantic="NORMAL" offset="1" source="#image-Normal0"/>
+          <input semantic="TEXCOORD" offset="2" set="0" source="#image-UV0"/>
+          <p> 0 0 0 1 1 1 3 2 3 3 3 3 2 4 2 0 5 0</p>
+        </triangles>
+      </mesh>
+    </geometry>
+  </library_geometries>
+  <library_visual_scenes>
+    <visual_scene id="" name="">
+      <node name="image" id="image" sid="image">
+        <matrix sid="matrix">1 0 0 0 0 0 1 0 0 -1 0 0 0 0 0 1</matrix>
+        <instance_geometry url="#image-lib">
+          <bind_material>
+            <technique_common>
+              <instance_material symbol="Material #36" target="#Material #36"/>
+            </technique_common>
+          </bind_material>
+        </instance_geometry>
+        <extra>
+          <technique profile="FCOLLADA">
+            <visibility>1</visibility>
+          </technique>
+        </extra>
+      </node>
+      <extra>
+        <technique profile="MAX3D">
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+        </technique>
+        <technique profile="FCOLLADA">
+          <start_time>0</start_time>
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+        </technique>
+      </extra>
+    </visual_scene>
+  </library_visual_scenes>
+  <scene>
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diff --git a/urdf/signs/dae/unmarked_intersection.dae b/urdf/signs/dae/unmarked_intersection.dae
new file mode 100644
index 0000000000000000000000000000000000000000..148e145cbc0465be2adae2bf80603fdf71d38412
--- /dev/null
+++ b/urdf/signs/dae/unmarked_intersection.dae
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1">
+  <asset>
+    <contributor>
+      <author></author>
+      <authoring_tool>FBX COLLADA exporter</authoring_tool>
+      <comments></comments>
+    </contributor>
+    <created>2014-10-05T08:59:28Z</created>
+    <keywords></keywords>
+    <modified>2014-10-05T08:59:28Z</modified>
+    <revision></revision>
+    <subject></subject>
+    <title></title>
+    <unit meter="1.0" name="meter"></unit>
+    <up_axis>Y_UP</up_axis></asset>
+  <library_images>
+    <image id="Map #1-image" name="Map #1">
+      <init_from>png/unmarked_intersection.png</init_from>
+    </image>
+  </library_images>
+  <library_materials>
+    <material id="Material #36" name="Material #36">
+      <instance_effect url="#Material #36-fx"/>
+    </material>
+  </library_materials>
+  <library_effects>
+    <effect id="Material #36-fx" name="Material #36">
+      <profile_COMMON>
+        <technique sid="standard">
+          <phong>
+            <emission>
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+            </emission>
+            <ambient>
+              <color sid="ambient">1  1 1 1</color>
+            </ambient>
+            <diffuse>
+              <texture texture="Map #1-image" texcoord="CHANNEL0">
+                <extra>
+                  <technique profile="MAYA">
+                    <wrapU sid="wrapU0">TRUE</wrapU>
+                    <wrapV sid="wrapV0">TRUE</wrapV>
+                    <blend_mode>ADD</blend_mode>
+                  </technique>
+                </extra>
+              </texture>
+            </diffuse>
+            <specular>
+              <color sid="specular">0  0 0 1</color>
+            </specular>
+            <shininess>
+              <float sid="shininess">2</float>
+            </shininess>
+            <reflective>
+              <color sid="reflective">0  0 0 1</color>
+            </reflective>
+            <reflectivity>
+              <float sid="reflectivity">1</float>
+            </reflectivity>
+            <transparent opaque="RGB_ZERO">
+              <color sid="transparent">1  1 1 1</color>
+            </transparent>
+            <transparency>
+              <float sid="transparency">0</float>
+            </transparency>
+          </phong>
+        </technique>
+      </profile_COMMON>
+    </effect>
+  </library_effects>
+  <library_geometries>
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+      <mesh>
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+              <param name="Y" type="float"/>
+              <param name="Z" type="float"/>
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+              <param name="S" type="float"/>
+              <param name="T" type="float"/>
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+          </technique_common>
+        </source>
+        <vertices id="image-VERTEX">
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+          <input semantic="TEXCOORD" offset="2" set="0" source="#image-UV0"/>
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+      </mesh>
+    </geometry>
+  </library_geometries>
+  <library_visual_scenes>
+    <visual_scene id="" name="">
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+        <instance_geometry url="#image-lib">
+          <bind_material>
+            <technique_common>
+              <instance_material symbol="Material #36" target="#Material #36"/>
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+          </bind_material>
+        </instance_geometry>
+        <extra>
+          <technique profile="FCOLLADA">
+            <visibility>1</visibility>
+          </technique>
+        </extra>
+      </node>
+      <extra>
+        <technique profile="MAX3D">
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+        </technique>
+        <technique profile="FCOLLADA">
+          <start_time>0</start_time>
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+      </extra>
+    </visual_scene>
+  </library_visual_scenes>
+  <scene>
+    <instance_visual_scene url="#"></instance_visual_scene>
+  </scene>
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