sumo/tests/complex/tutorial/traci_tls/runner.py at 5959387a36a38f2cf189e6f1f3fcb87a5a88044b · eclipse-sumo/sumo · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
#!/usr/bin/env python
# Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
# Copyright (C) 2009-2026 German Aerospace Center (DLR) and others.
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# https://www.eclipse.org/legal/epl-2.0/
# This Source Code may also be made available under the following Secondary
# Licenses when the conditions for such availability set forth in the Eclipse
# Public License 2.0 are satisfied: GNU General Public License, version 2
# or later which is available at
# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later

# @file    runner.py
# @author  Lena Kalleske
# @author  Daniel Krajzewicz
# @author  Michael Behrisch
# @author  Jakob Erdmann
# @date    2009-03-26

from __future__ import absolute_import
from __future__ import print_function

import os
import sys
import optparse

from generateRoutes import generate_routefile

# we need to import python modules from the $SUMO_HOME/tools directory
if 'SUMO_HOME' in os.environ:
    tools = os.path.join(os.environ['SUMO_HOME'], 'tools')
    sys.path.append(tools)
else:
    sys.exit("please declare environment variable 'SUMO_HOME'")

from sumolib import checkBinary  # noqa
import traci  # noqa

TLS_ID = "junction"
DETECTOR_ID = "north_detector"

# The program looks like this
#    <tlLogic id="junction" type="static" programID="0" offset="0">
# the locations of the tls are      NESW
#        <phase duration="31" state="GrGr"/>
#        <phase duration="6"  state="yryr"/>
#        <phase duration="31" state="rGrG"/>
#        <phase duration="6"  state="ryry"/>
#    </tlLogic>


def run():
    """execute the TraCI control loop"""
    step = 0
    # we start with phase 2 where EW has green
    traci.trafficlight.setPhase(TLS_ID, 2)
    while traci.simulation.getMinExpectedNumber() > 0:
        traci.simulationStep()
        if traci.trafficlight.getPhase(TLS_ID) == 2:
            # we are not already switching
            if traci.inductionloop.getLastStepVehicleNumber(DETECTOR_ID) > 0:
                # there is a vehicle from the north, switch
                traci.trafficlight.setPhase(TLS_ID, 3)
            else:
                # otherwise try to keep green for EW
                traci.trafficlight.setPhase(TLS_ID, 2)
        step += 1
    traci.close()
    sys.stdout.flush()


def get_options():
    optParser = optparse.OptionParser()
    optParser.add_option("--nogui", action="store_true",
                         default=False, help="run the commandline version of sumo")
    options, args = optParser.parse_args()
    return options


# this is the main entry point of this script
if __name__ == "__main__":
    options = get_options()

    # this script has been called from the command line. It will start sumo as a
    # server, then connect and run
    if options.nogui:
        sumoBinary = checkBinary('sumo')
    else:
        sumoBinary = checkBinary('sumo-gui')

    # first, generate the route file for this simulation
    generate_routefile()

    # this is the normal way of using traci. sumo is started as a
    # subprocess and then the python script connects and runs
    traci.start([sumoBinary, "-c", "data/cross.sumocfg",
                             "--tripinfo-output", "tripinfo.xml"])
    run()