The following vehicle typeĪre safety related: car-following model # Simulation of unsafe behavior is a developing subject. The action step length must be a multiple of the simulation step length.
Sublane model) use a dynamic acceleration curve that to complete the Without decision-making, vehicle positions are updated according to the Insertion which means vehicles inserted at different times may takeĭecisions during different simulation steps. Vehicle action-step-length can be defined as the duration between To decouple the decision interval from the simulation step length, the step-length 0.1), this also gives very low effective reaction times. When running with sub-second time resolution (i.e. In parallel within a single simulation step because the vehicle furtherīehind already takes into account the lateral movement of the vehicleīy default, vehicles recompute their speed and lane-changing decisionsĮvery simulation step. Consequently, two vehicles thatĪre driving almost parallel on a 3-lane road may both change their lanes In contrast, lane-changing within an edge happens sequentially (in the Is at least a reaction time of the simulation step-length. The traffic state from the previous simulation step. However, this headway can be set independently of the actual reactionĪll simulation vehicles select their speed simultaneously with regard to Sufficient headway is necessary for safe driving with delayed reaction. The tau parameter as this models the desired time headway. Reaction time should not be confused with
In Reality, drivers take actions with some delay in regard to theĮvolving traffic situation. To simulate the effects of an accident seeįAQ#How_to_simulate_an_accident.