Too much traffic in every signal, need flyovers

In Dhaka city, if there is no traffic jam, but you have to wait or kill your time, only for waiting a lot, in every node of roads. Some times traffic is too much that you need to wait to see one bunch of vehicles go and wait until your turn comes. I believe we need flyover on every node that no one had to wait or stop over traffic signal; all will go smoothly with out any stopping.

I had heard one buet student made a design for Mouchak node that there won’t be any stopping, but now no one taking any initiative to make it.