Hello Jakob,

Below is a reproducible example using TraaS.

    public static void main(String[] args) {
        SumoTraciConnection conn = new SumoTraciConnection(sumo-gui, 
config_file);
        conn.addOption("step-length", "0.1"); //timestep 100 ms

        try{
            conn.runServer();
            conn.do_timestep();

            conn.do_job_set(Vehicle.add("vehicle", "vehicleType", "route", 0, 
1, 1, (byte) 0));
        conn.do_job_set(Vehicle.changeTarget("vehicle", "edgeToTarget"));

        //This is where the error occurs
            conn.do_job_set(Edge.setEffort("edgeToSetEffort", 1));

            for(int counter=0; counter<5000; counter++){
                conn.do_timestep();
            }

            conn.close();

        } catch(Exception exception){
            exception.printStackTrace();}
    }

The simulation runs fine without 
‘conn.do_job_set(Edge.setEffort("edgeToSetEffort", 1));’

Also, ‘conn.do_job_set(Vehicle.setEffort("vehicle", 0, 5000, "edge", 1))’ works 
fine, however, I’d like to set the effort for the edges globally.

Thanks,
Jonathan

From: Jakob Erdmann
Sent: 21 March 2018 18:51
To: Jonathan Harper
Cc: sumo-u...@lists.sourceforge.net; sumo-user@eclipse.org
Subject: Re: [sumo-user] Edge.setEffort() Returning Error

Hello
1) this is quite strange. The last time i saw something like this it came from 
multiple traci threads that were trying to talk to sumo at the same time. Can 
you reproduce this with a single traci thread? If so, please send me a minimal 
scenario.
2) yes. 
regards,
Jakob

2018-03-20 22:03 GMT+01:00 Jonathan Harper via sumo-user 
<sumo-u...@lists.sourceforge.net>:
Hello,

I’m currently using TraaS to interface with SUMO. I am attempting to reroute a 
vehicle and hope to make it change path by setting an effort to an edge (I 
believe this is the equivalent of setting a ‘weight’ to that edge), this effort 
is calculated from the congestion + other metrics.

1. When setting an edge using  ‘conn.do_job_set(Edge.setEffort("edge1", 1.5))’ 
I receive the errors “Unexpected command and status IDs match: expected 202, 
got 196” given by Traci (TraaS), and “Error: Answered with error to command 
0xc4: Setting effort requires a compound object.” given by the SUMO client.

Is there anything more to this? Is the syntax wrong?

2. When setting an effort for a vehicle Vehicle.setEffort(), is this simply an 
effort given to an edge for a period of time exclusive to this vehicle?

Many thanks,
Jonathan


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