I’m not sure what stage the Grand Parkway is in regarding the northern sections.
I know that some others have been completed. One problem up that way is I-45
which has been widened but is still very crowded during peak hours.
Part of the problem going north on I-45 is that it goes from 4-5 lanes to two in a relatively short distance. Once the construction finishes up on I-45, it should get much better.