The problem of generating traffic flow in one day

[nudtdyk]

Hi,Lara Codeca
Recently I have been using SAGA to generate traffic flow for a small area of the city, but I found that one day's traffic flow in the city doesn't quite match reality as shown below:

You can notice that traffic has been flat until 5:00 a.m., and the curve has only one peak, and there is no morning or evening rush hour，a more realistic traffic curve would look like the following:

Can you tell me the underlying reasons for this?
Looking forward to your reply！

[nudtdyk]

I would like to know how I can achieve the above by modifying the activity chain.
Thanks very much!