Purpose of the separate maximum acceleration chart

QuestionWhat is the purpose of the separate maximum acceleration chart if there is already a range for the desired acceleration?AnswerThe maximum acceleration/deceleration curves define the…

Used distribution for vehicles entering the network

QuestionWhat kind of distribution is used for vehicles entering the network?AnswerA Poisson distribution is used for the times when a vehicle enters the network. The…

Desired acceleration

QuestionCould you explain when and how the desired acceleration is applied?AnswerThe desired acceleration is the acceleration that the vehicle uses to reach its desired speed…

Conflict areas: priority ignored

QuestionSome conflict areas appear to operate with different priority than that as coded. Yielding vehicles appear to take priority. Why is this and how can…

How can I automatically run the same simulation repeatedly?

QuestionHow can I automatically run the same simulation repeatedly, for example in a showroom?AnswerYou can use a command line parameter as follows:vissim.exe [filename.inp] -s10This will…

Vehicle simulation: HGVs do not change lanes

QuestionI have a situation where HGVs disappear from the network after 60 seconds of waiting time for lane change to turn left. Other vehicles would…

Model reverse movements/parking space/reverse-out parking

QuestionCan PTV Vissim model reverse movements, e.g. for parking lots?AnswerYes, since PTV Vissim 10, vehicles are able to reverse out of parking lots. Additionally reverse…

What reduces my simulation speed?

QuestionMy simulation runs slow although there are less than 200 vehicles in the network. Sometimes it also looks as if the simulation speed varies a…