Using vehicle categories

The Vehicle category attribute of a vehicle type specifies its basic behavior in traffic (Operating principles of the car following model). The latter varies between individual vehicle categories. For example, the vehicle category Tram does not allow for lane changes and the speed of vehicles of this category is not based on a desired speed. You need to assign each vehicle type a vehicle category (Editing static data of a vehicle type). Vissim provides the following default vehicle categories:

Car
HGV
Bus
Tram
Pedestrian
Bike

The table shows the properties of vehicle categories that differ from the properties of the vehicle category Car:

Vehicle category	Differing property
HGV	The weight distribution and the power distribution are only relevant for this vehicle category and only for the spread in acceleration curves (Using weight distributions), (Using power distributions). In Wiedemann 99, in the Free and Follow interaction states, accelerates with only half the acceleration calculated (Driving states in the traffic flow model according to Wiedemann), (Interaction state of the vehicle) For the right-side rule general behavior when changing lanes, has different values for some non-user defined parameters of free lane changing. Doesn't have an occupancy distribution, just one driver (Using occupancy distributions)
Bus	The properties correspond to the properties of the car vehicle category.
Tram	Lange changes not allowed In Wiedemann 74, in the Free interaction state (Free driving state according to Wiedemann), does not oscillate around the desired speed, but drives exactly at the desired speed (Driving states in the traffic flow model according to Wiedemann), (Interaction state of the vehicle)
Pedestrian	Always brakes at amber and red Calculates a safety distance of 0.1 m when changing lanes (Editing the driving behavior parameter Following behavior), (Defining the Wiedemann 74 model parameters) Doesn't have a stochastic threshold that defines the speed below the desired velocity at which a vehicle would be overtaken. Therefore a pedestrian overtakes immediately when he cannot continue at the desired velocity. Doesn't have an occupancy distribution, just one person (Using occupancy distributions) Has 21 motion states: Has a state for standing pedestrians 20 states for motion sequence of two steps
Bike	Doesn't have an occupancy distribution, just one person (Using occupancy distributions) Has 21 motion states: Has a state for cyclists 20 states for motion sequence of one crank revolution

Superordinate topic:

Managing vehicle types, vehicle classes and vehicle categories