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VEHICLE ACCIDENT SIMULATION FREE SIMULATOR

In this example, the following configuration is done to model collisions:

By setting the option -collision.stoptime, traffic jams may be created after a registered collision.

If you close the whole edge, rerouting may be triggered as well.

Alternatively, you may close one or more of the lanes on an edge.

Within a project, we simulated traffic incidents by letting vehicles stop on one lane and reducing the speed on the other lanes.

You may of course combine both approaches.

This method will reduce the throughput on the lane, but further dynamics will rather not fit to what one would expect from an accident situation.

Put a variable speed sign of the lane where the accident is meant to be and let it reduce the speed (see Simulation/Variable Speed Signs).

This works quite nicely for simulating accidents.

Let a vehicle halt on the lane for some time (see Definition of Vehicles, Vehicle Types, and Routes#Stops).Without using TraCI the following approaches may be useful: Often, the effects of an accident are required instead of the accident itself. Since the default model aims to be accident-free, some effort must be taken to create accidents. SUMO automatically detects vehicle collisions. By default, whenever these gaps are reduced to below a vehicle's minGap a collision is registered. SUMO tracks gaps between vehicles that are on the same edge either fully or partially.

SUMO has a predefined minimum gap (mingap) parameter for each vehicle class (Eg: bicycle, motorcycle, passenger car etc). However, when it comes to modeling roads, traffic signals, vehicles, etc it is left to SUMO. NetSim provides facilities to customize various simulation parameters and provides an extensive analysis of the network performance. NetSim’s VANET simulation framework allows modelling VANETs per WAVE specifications, and covers IEEE1609, IEEE802.11p, SAE standard J2735.

VEHICLE ACCIDENT SIMULATION FREE SIMULATOR

NetSim network simulator offers seamless interfacing with open source road traffic simulator SUMO on this regard. Typically a road traffic simulator and a network simulator is combined to study the performance of VANETs.