[sumo-user] Question of traffic signal

[Wei L. <agn...@12...>]

Dear Sir/Madam,
I'm new user of sumo. I'm working with a signal  intersection. but i cannot understand the description in tllogic files, what it means about 'phase' and 'state', what is the difference of them. and what is about 'state' and 'program'.
then when i have tllogic files, how can i implement them to networks and simulation? i don't understand the command-line explaination. and what should be the name of tls-file?
Sincerely
Wei Li