Index: trunk/src/tmcsim/utilities/VehicleDetectionStation.java
===================================================================
--- trunk/src/tmcsim/utilities/VehicleDetectionStation.java	(revision 272)
+++ trunk/src/tmcsim/utilities/VehicleDetectionStation.java	(revision 274)
@@ -8,5 +8,6 @@
 
 /**
- * Represent a single VDS.
+ * Represent a single VDS, "a logical grouping of detectors" at a particular 
+ * location in one direction.
  * @author jdalbey
  */
@@ -33,5 +34,6 @@
         lineScanner.next(); // skip City
         String raw_pm = lineScanner.next().trim();
-        if (raw_pm.startsWith("R"))
+        // remove any postmile prefix, if it exists.
+        if (Character.isAlphabetic(raw_pm.charAt(0)))
         {
             raw_pm = raw_pm.substring(1);