Hi meisoof, I wanted to point out a few issues I have found with this changeset:
1) Traffic signals should be mapped at the stop line of the way coming in to the intersection instead of exiting the intersection (https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtraffic_signals)
2) King Edward Street and United Boulevard are not a dual-carriageways since there is no physical barrier separating the two directions.

Do you want to try to fix these issues before I take a look? Thanks, Joel