![]() Update, which considers the vehicle's speed constant during one time There are two numerical integration methods available, which control theĭynamical update of the simulation. ![]() May speed up the simulation, but note that a value larger than theĪssumed reaction time tau may induce collisions. Length automatically switches the integrationĬhoosing the action step length larger than the simulation step length Using an action-step-length different from the simulation step Of the given length and not within every simulations step (which is theĭefault). The adaption of accelerations or lane-change maneuvers only at intervals Specifying the option -default.action-step-length implies that vehicles perform calculations for the frequency of vehicle speed adaptation increases unless prevented by setting action-step-length (see below).vehicle insertion and lane changing succeed more often in a given amount of time since the conditions are checked more often.the generated movements are generally smoother.the simulation takes longer to simulate a given amount of time (because it needs more steps to do so).Setting a lower step-length has many consequences: Technically, larger values can be used but many car-following models are not tested with values above 1 and may fail to work as expected.The step-length also sets a lower bound on driver reaction times which increases the likelihood of collisions when using values above 1 without adapting other model parameters (tau). Įxample: -step-length 0.01 will run the simulation using time steps of 10ms. You may override this using the -step-length option. A close command has been received via TraCI.Is active, the simulation will continue even after the last vehicle The state of the simulation is the one in which the last vehicle has No value for -end has been given and all vehicles have been simulated.The final time step was given using -end and this time step was reached.The simulation ends in the following cases: The simulation performs each time step one-by-one. The simulation starts at the time given in -begin, which defaults to 0. ![]() Please note that whether the option -end was given influences the Sumo-gui using the options -begin (or -b for short) and -end
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