diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..78599195
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "data/costs"]
+	path = data/costs
+	url = hoersch@fias.uni-frankfurt.de:/home/vres/data/tom/playground/sector/data/costs
diff --git a/data/costs b/data/costs
new file mode 160000
index 00000000..7cf4a611
--- /dev/null
+++ b/data/costs
@@ -0,0 +1 @@
+Subproject commit 7cf4a6117db06a8dee7d8203d6bb427fa0336872