Index: /branches/unique_lane_types/unique_lane_types_results.txt
===================================================================
--- /branches/unique_lane_types/unique_lane_types_results.txt	(revision 235)
+++ /branches/unique_lane_types/unique_lane_types_results.txt	(revision 236)
@@ -7,5 +7,19 @@
 in the data, with the associated lane type. This helps to understand which lane descriptions
 are most often used with the lane identifier.
+************
+from:
+https://www.its-rde.net/index.php/component/jdownloads/send/17/95?option=com_jdownloads
 
+OR = On ramp, FR = Off ramp, ML = Main line, HV = HOV lane, FF = Freeway-to-freeway connector.
+************
+from:
+http://www.itsware.net/itsschemas/CALTRANS/outdated/Caltrans-00-00-05/docs/docs_VDSType.html#Link06BBF508
+
+ML = Main line, FR = Off ramp, OR = On Ramp, HV = HOV, CD = Collector/Distributor, FF = Fwy to Fwy, FC = Off Collector/Distributor
+
+********************
+Paper on demand/queue/etc ramp metering system by chu:
+http://www.its.uci.edu/~lchu/documents/PARAMICS%20Plugin%20-%20ramp%20metering.pdf
+********************
 
 {