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I'm simulating drivers with Eclipse SUMO using TraCi. I have a road segment of 1Km (highway) that contains five lanes: two right lanes that are leading to a right turn (exit), and three left lanes that are leading straight. It seems that drivers that want to go right will stand on the right lanes regardless of the queue size, resulting in two lanes that are very slow, and beside them, three lanes that can have a speed of 120 Km/h.

In reality, some drivers are not waiting in the 1 Km queue, but deciding to jostle to the queue in the middle, while other might regret standing in the queue and decide to go straight instead. This is resulting in a slow down on the three left lanes i.e., it is rare to have two adjacent lanes (lanes 2 and 3 from the right on this case) with a 100 km/h speed difference (safety reasons)

My question is if a parameter that limits the speed ratio between two adjacent lanes exists, or if there is another way to simulate this kind of behavior, as I could not find any.

I tried to establish a connection through TRACL command in the TRaCICommandInterface.cc and TraciCommandInterface.h (SetAcceleration)

This is my code in the cc file:

I am using veins version 5.2, omnetpp5.7, Eclipse SUMO Version 1.4.0. I am trying to implement a simple platooning of 3 vehicles following this tutorial: http://cse.iitkgp.ac.in/~soumya/micro/t2-4.pdf I followed exactly the same steps and the communication between the vehicles are established, but in onBSM function, the getSenderSpeed always return (0,0,0) resulting in getSenderSpeed.Length() = 0. I tried to debug it and tried to check the data from the debug variables menu, when I open the object that is sent to onBSM, there are two values which are getSenderPos and getSenderSpeed, when I open getSenderSpeed its zero, when I open getSenderPos, the simulation gets terminated. Any solutions? my Initialization Function:

I have created a traffic scenario in SUMO and running it using Omnet++. I have Inet, Veins and VANET to work with it. I made vehicles as a nodes and run the scenario using Veins, and established the communication between the nodes using VANET. But I have 3 different scenarios in SUMO and I have to run them in Veins so how can I run multiple scenarios? Is it possible using single Veins_Inet?

HAve something very puzzling(or sound strange to me). Wish to have some clearer explanation from you guys

Have been cross compiling a file using environmental-setup-file (environment-setup-aarch64-poky-linux) from a Yocto Distribution for an arm . I understand it is to set environment (by using source environment-setup-file)

It contains

• SDKTARGETSYSROOT (I understand it is the representative minimal target where it holds the header and library file needed to cross compile the code)
• PATH (somewhat like the PATH usage in your own environment but somewhat different as it is pertaining to the target)

What I find confusing is that the location of toolchain. Isnt it supposed to be found in SDKTARGETSYSROOT (The toolchain is set by others, SDKTARGETSYSROOT= /opt/fsl-imx-xwayland/4.14-sumo/environment-setup-aarch64-poky-linux ) ? I find my aarch64-poky-linux-gcc to be found in directory outside that of SDKTARGETSYSROOT (though the gcc is found in PATH,, /opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux)

Is there a rationale for doing this way? I have been coding the codes but would like to learn why this is so?

Thanks

I am very new to Sumo. I am doing a simple simulation from tutorial in sumo documentation and I face a warining which stops me. Warning: Double edges aren't allowed. Does anyone know what is it and how can I get rid of?

I'm currently running some experiments on the Bologna Acosta map, computing alternative routes in Python and changing the route of the entered vehicles based on some heuristics and monitoring the change in the SUMO metrics.

In order to understand which vehicles have just entered the map I did this:

I want to know something more about the latDist component in traci.vehicle.changeSublane(vehID, latDist) rather than what sumo says in "https://sumo.dlr.de/docs/TraCI/Change_Vehicle_State.html#lane_change_mode_0xb6". Does it have any interval? Do the values it takes are the matter of distance? Does it have values as threshold? What do we mean when using for instance "3.00" as latDist? Best, Ali

I'm using Python to compute the possible routes of a vehicle from a point to another point of a map drawn in SUMO. I would like to use now TraCI to show these routes on the map by highlighting them. Is it possible via the API to select them and then use the selection visualisation to see the route in traci ?