PTV Vissim - Dynamic assignment - Dynamische Umlegung
Symptom I have a simulation period about 24 hours (86400 seconds), after 4 hours no more vehicles will be generated. Cause The problem occurs because for traffic from…
Question What is the unit of the generalized cost function? How can I determine the coefficients correctly? Answer There is no implicit unit for the generalized cost, so…
Question I have several cases where zones need to load at two different parking lots (zone connectors). How can I do that? Answer You may assign the same…
Symptom When initializing the simulation, PTV Vissim freezes on "Build node structure... Node n". Cause This problem usually occurs when nodes are missing in the network. In such…
Question Is the cost of a route dependent only on travel time? Answer A generalized cost function is used instead of merely travel time. The link cost is…
Question I am using dynamic assignment for a network and have performed several runs, but the model never achieves convergence. Do you have any suggestions? Answer Here are…
Question Are matrix correction tools available in PTV Vissim? Answer There is a matrix correction tool in PTV Vissim. For more information, click Help > PTV Vissim Help…
Question Why are some of the trips of the OD matrix not assigned? Answer Please check the following points:- Is the evaluation period long enough to catch all…
Frage How can I view or edit the routes created by using dynamic assignment? Antwort 1) Open the network and select 'Parking lot' from the toolbar.2) Choose 'Edit…
Question Before running a simulation I get a warning message that the abstract graph in the path file is not identical with the current one. What…
Question After a simulation run, I get warnings that some paths could not be found. Does it mean that during the simulation not all vehicles were…
Question After achieving convergence, what settings must I adjust to maintain the path volumes and run simulations for evaluation? Answer After achieving convergence, if you want to continue…