How to create left hand traffic?

[itsparth]

I created a simple sumo net as below

As seen from directional arrows, its left hand traffic. I converted this to city flow roadnet file using converter.py and ran simulation but the replay file has right hand traffic.

Here are the replay files
replay.txt
replay_roadnet.txt Rename to replay_roadnet.json

[BackMountainDevil]

would you like to provice the sumo data(net, flow)?