Please contact McTrans with any new problems found that may be added to this list.  Some of these errors may be corrected in the next release, subject to priorities (suggestions welcome).  This list does not include brand-new features that have been added.

1.  There is a bus station problem where a bus waiting to get in the bus station blocks a bus trying to leave the bus station.  They just sit there for the rest of the simulation.  This problem has only been observed in a special case where the bus station is at the very upstream end of the link.*

2.  Version 5.1 of TRAFED was improved by using an XML parser that added some functionality and convenience.  However, the XML parser can only process the standard character set, which includes all ASCII codes less than or equal to 127.  The extended character set, which includes all ASCII codes greater than 127, is not supported.  For example, if an input file contains the special character û, when it is replaced with a standard u the problem is eliminated.

3.  If a user selects Save APC Settings from the Options > Application menu and then changes the resolution of the display, TRAFVU might save coordinates for the APC that are off the screen.  If the APC dialog box is not visible on the screen, the system administrator can use the registry editor (Start > Run > Regedit) to delete the following key, and erase the saved APC coordinates:*

HKEY_CURRENT_USER\Software\FHWA\TSIS\5.1\TRAFVU\Preferences\Application\APC

Note: Always backup the registry before making changes.

4.  There is a known problem that causes Fatal Error -2703- More than one bus lane was specified on link [xx,yy]. Check Record Type 11.  This happens when a lane is channelized for buses-only in time period one and then the same lane gets channelized for buses-only again in time period two.  The bug is that CORSIM counts that as two lanes channelized for buses-only.  If the user is not trying to change lane channelizations in the subsequent time period, this problem can be avoided by leaving the channelization codes blank, such that CORSIM will automatically use the channelizations specified for time period one.*

5.  StopDelayTime is not correct in the Output Processor for FRESIM links.  The values in the CORSIM Output file (*.out) are correct and the values in the Output Processor are correct for NETSIM links.*

6.  TotalDelayTime is not correct in the Output Processor.  It is calculated from raw CORSIM data but incorrect data are used.  Other calculated MOE in the Output Processor use this incorrect TotalDelayTime and therefore should be considered to be incorrect also.  These include AvgPersonDelay, PctTimeMoving and AvgDelay.  The values in the CORSIM Output file (*.out) are correct.*

7.  The Emissions data in the Output Processor and in TRAFVU are not accumulated correctly.  The values presented are totals that are sums of averages over all of the different vehicle types.  The values in the CORSIM Output file (*.out) are correct because they are presented by vehicle type.*

8.  CORSIM doesn't handle freeway origin-destination data correctly in version 5.1.  It works for vehicle type 1 only.  All other vehicle types ignore the O-D data.*

9.  NETSIM traffic assignment logic does not function properly at actuated signals, or at signalized and uncontrolled nodes with "unused links".

10.  If a lane is channelized for carpools and buses, carpools are never checked as valid for that lane channelization, and therefore cannot use the lane.  As a work around, if the user changes all lane channelizations from carpools and buses (type 6) to carpools only (type 5) the lane is used by carpools.  If there are no buses so nothing will be lost by using this work around.  If the user needs to add buses that will use this lane also, they will have to wait for the next version of TSIS.*

11.  Specifying pedestrian traffic should slow right-turning vehicles, but version 5.1 erroneously disables pedestrian traffic at actuated controllers.  To overcome this problem, it may help to define Pedestrian Operations for Actuated Control.  Another way to slow down right-turners is to reduce the network wide maximum right-turn speed, which by default is 13 ft/sec.*

12.  The CORSIM legacy report contains both Control Delay per Vehicle (sec/veh), and Total Control Delay (veh-min).  However, the TSIS 5.1 Output Processor only captures and reports Total Control Delay, in units of vehicle-minutes.*

An asterisk (*) indicates that the problem will be fixed in the next version.