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Questions tagged [flow-project]

Computational framework for reinforcement learning in traffic control https://github.com/flow-project/flow

98 questions
17
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2 answers

Warning after I run the command "conda env create -f environment.yml"

After I run the conda env create -f environment.yml in Conda, I receive the following warning: Warning : you have pip-installed dependencies in your environment file, but you do not list pip itself as one of your conda dependencies... What does…
QMarkLi
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1 answer

libproj not loaded while installing sumo on macOS

I was going through the Flow installation and when I typed sumo --version into the terminal I got the following error message: dyld: Library not loaded: /usr/local/opt/proj/lib/libproj.13.dylib Referenced from:…
Rayyan
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3
votes
0 answers

when test the grid scenario, there is an valueError

On flow tutorial_8, I tried another scenario: SimpleGridScenario I already check the grid.py, and followed the rules for the parameters. My origianl program is that: from flow.envs import Env from gym.spaces.box import Box from…
user11795736
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3
votes
1 answer

Flow: How to distribute reinforcement vehicles (RL) vehicles uniformly?

I have a question about Flow the deep re-enforcement learning framework. How do I add multiple RL vehicles among the human-driven vehicles so that the RL vehicles are distributed evenly? I checked out the docs and examples but wasn't sure how to…
Mark Stosberg
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2
votes
0 answers

Cannot define custom metrics in ray

I'm using a framework called FLOW RL. It enables me to use rllib and ray for my RL algorithm. I have been trying to plot non learning data on tensorboard. Following ray documentation ( link ), I have tried to add custom metrics. Therefore, I need to…
Antonio Domínguez
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2
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1 answer

lxml error when running sugiyama.py on Mac

Recently I want to try flow-project on Mac, and after installing all requirements and trying to run python examples/sumo/sugiyama.py, I got an error as stated below. Could you please help me to solve it? Traceback (most recent call last): File…
khahuras
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2
votes
1 answer

How to change sizes of vehicle in Flow simulation?

It seems that we can only create a stable size of vehicles in Flow Simulation. How can we change the size(include length, width of car) of vehicles?
Hongyong Huang
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2
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1 answer

Running the grid0 baseline benchmark in Flow

Repost from User Timo N. Hi guys, When running the grid0 baseline benchmark, I encountered a problem regarding the traffic lights. I adjusted the number of rows and columns to 1 so the scenario fits my needs. When running, the traffic lights have…
Alben
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2
votes
1 answer

Error `no module named flow` when trying to use Aimsun with Flow

Repost from Flow team (question by Ziyuan G.) I followed Flow's installation steps and everything went well until testing my AIMSUN installation. AIMSUN was installed correctly, but when I tried python examples/aimsun/sugiyama.py, an error came up…
math.husky
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2
votes
1 answer

Load model from snapshot in the Flow environment

Repost from Flow user "ml jack": I'm in the process of RL training with flow and rllab. Snapshots are periodically saved. Is there a way to load these snapshot and test/re-evaluate them in the flow environment?
Marsalis Gibson
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2
votes
1 answer

How to integrate SUMO into Flow?

Repost from Antonio D.: I just installed FLOW following all the instructions given in the following link. After executing the sugiyama example, SUMO shows an error saying this: "Error: tcpip::Storage::readIsSafe: want to read 8 bytes from Storage,…
Fangyu Wu
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2
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1 answer

How I can add a trained RL controlled vehicle to the system in tutorial01?

I would like to know how I can add a trained RL controlled vehicle in the system in the tutorial01. I have run the tutorial04_rllab. I added an RL controlled vehicle with the name “r1” and successfully trained it. Now, when I want to do the same in…
Ashkan
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2
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2 answers

How to use Flow for heterogeneous traffic?

Since sumo doesn't natively support heterogeneous traffic, but the published paper says Flow could be used for this type of traffic, I was wondering how this is done with Flow as there is nothing about this in the documentation.
Vishal Hundal
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1
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0 answers

IndexError when run the flow/envs/ring/lane_change_accel

when I run the flow/envs/ring/lane_change_accel,there is an error: Traceback (most recent call last): File "/home/vcdc/anaconda3/envs/flow/lib/python3.7/site-packages/ray/tune/trial_runner.py", line 426, in _process_trial result =…
liw17150934
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1
vote
1 answer

Missing file (net.xml) in Running Environment Flow

On tutorial 01 from flow:Tutorial 01. I executed the code flow_params = dict( exp_tag='ring_example', env_name=AccelEnv, network=RingNetwork, simulator='traci', sim=sim_params, env=env_params, net=net_params, …
Sidnetopia
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