To optimize your SUMO simulation with the real traffic data you have, you can use Python to automate the process. Here's a general approach:

You can optimize your simulation by creating a Python script that handles the data processing, file generation, and simulation execution for each subset of your data. Additionally, consider using efficient data structures and algorithms for handling large datasets, such as Pandas for data manipulation and NumPy for numerical computations.

Regards,

To accurately represent real-world traffic data on specific road segments in SUMO, there are numerous pathway and this is what I will do:

> Map Detectors to the Network Using mapDetectors.py

For each piece of traffic count data with latitude and longitude, utilize the SUMO tool mapDetectors.py. This tool will align the traffic count data with the corresponding road network in the detector

> Detector to Edge Module

Detectors are mapped onto specific lanes. Develop a module that converts lane-based traffic count data into edge-based data. For instance, if an edge e_1 comprises three lanes (#1, #2, and #3), and traffic count data N from detector d_1 is mapped onto lane #1, this data should be attributed to edge e_1 with traffic count N.

> Vehicle Configuration and Lane Attributes

Adjust vehicle behaviors using various vehicle types and configurations. Control speed limits through lane attributes. Additionally, calibrators (either flow or speed-based) can be integrated into the network using Netedit for scenario control.

> Using routeSampler.py for Route Generation

With the aforementioned traffic data mapped to edges, begin by generating a feasible routing set. This can be done either using randomtrip.py or by loading OD data. Then, employ the SUMO tool routeSampler.py, which aims to create a route set within the network that best approximates the traffic count data.

Yunfei Ma Dear Dr. Ma, thank you very much for your answer.

I used detector files and try to create od data using this code and dfrouter: dfrouter --net-file map.net.xml -d detectors.xml -f detectors.csv -o new.rou.xml --emitters-output trips.trips.xml --time-step 3600

This code gave me a new route and trips file. And when i try to use that new simulation, SUMO gives me this error: Warning: Found root element 'additional' in file 'trips.trips.xml' (expected 'routes').

Simulation started with time: 0.00.

Error: Vehicle '1.0' has no valid route. No connection between edge '1020362372#8' and edge '1028319597#13'.

Quitting (on error).

Simulation ended at time: 0.00. (An error occurred (see log).)

I tried to reposition the detector but it's still giving me the same error. Do you have any idea to what did i do wrong?