57620dad729d59f27ee7745fa3a48491045f7c0c,flow/benchmarks/baselines/merge012.py,,merge_baseline,#Any#Any#,26

Before Change

    
    // We consider a highway network with an upstream merging lane producing
    // shockwaves
    additional_net_params = ADDITIONAL_NET_PARAMS.copy()
    additional_net_params["merge_lanes"] = 1
    additional_net_params["highway_lanes"] = 1
    additional_net_params["pre_merge_length"] = 500

    // RL vehicles constitute 5% of the total number of vehicles
    vehicles = Vehicles()
    vehicles.add(veh_id="human",
                 acceleration_controller=(SumoCarFollowingController, {}),
                 speed_mode=9,
                 num_vehicles=5)

    // Vehicles are introduced from both sides of merge, with RL vehicles
    // entering from the highway portion as well
    inflow = InFlows()
    inflow.add(veh_type="human", edge="inflow_highway",
               vehs_per_hour=FLOW_RATE,
               departLane="free", departSpeed=10)
    inflow.add(veh_type="human", edge="inflow_merge", vehs_per_hour=100,
               departLane="free", departSpeed=7.5)

    sumo_params = SumoParams(
        restart_instance=True,
        sim_step=0.5,  // time step decreased to prevent occasional crashes
        render=render,
    )

    env_params = EnvParams(
        horizon=HORIZON,
        sims_per_step=5,  // value raised to ensure sec/step match experiment
        warmup_steps=0,
        evaluate=True,  // Set to True to evaluate traffic metric performance
        additional_params={
            "max_accel": 1.5,
            "max_decel": 1.5,
            "target_velocity": 20,
            "num_rl": NUM_RL,
        },
    )

    initial_config = InitialConfig()

    net_params = NetParams(
        inflows=inflow,
        no_internal_links=False,
        additional_params=additional_net_params,
    )

    scenario = MergeScenario(name="merge",
                             vehicles=vehicles,
                             net_params=net_params,

After Change

    env_params = flow_params["env"]
    net_params = flow_params["net"]
    initial_config = flow_params.get("initial", InitialConfig())
    traffic_lights = flow_params.get("tls", TrafficLights())

    // modify the rendering to match what is requested
    sumo_params.render = render

Instances