Traffic MAKER, not an enforcer

Is it really the volume of vehicles on the road that causse traffic?
Or is there any other causes that the local government needs to know?

This is a personal experience along Molino road corner Pag-asa.
Photos were personally taken and for you to assess.

We waited for almost an hour before we could pass.
The traffic started to build up until he can no longer handle it.
And the traffic built up til Camella Homes.

We have video taken unfortunately, I can not download it.

How do you think we could avoid and solve problem like this?