The phrase "avoid obstructing" is correct and usable in written English.
You can use it when advising someone to refrain from blocking or hindering progress or movement in a particular context.
Example: "Please ensure that you avoid obstructing the emergency exits during the event."
Alternatives: "prevent blocking" or "refrain from hindering".
One façade of the Cheesegrater leans over to avoid obstructing St Paul's.
They quickly climb from the chair and jog to the spot in question, keeping an eye on the spot and trying to avoid obstructing the players' view.
Most of the supporting cast members have chosen to follow Mr. Law's semaphore style, though in a scaled-down manner that befits a team that knows its raison d'être is to avoid obstructing the view of the name above the title.
On the platform, everyone shuffles into tight formation beside the train doors to avoid obstructing disembarking passengers, then rushes in, albeit in crowd-enforced slow motion.
Whenever required the jugular catheter was repositioned with the tip of the catheter aimed at the caudal aspect of the mastoid process to avoid obstructing the jugular bulb and the sigmoid sinus.
On underground metro systems (such as the London Underground), avoid obstructing the air vents e.g. by leaving newspapers on them.
The relationship with piPTB may be due to the clinician's desire to avoid obstructed labor associated with cephalopelvic disproportion [ 33].
Obstetric fistulas can be prevented through contraception, avoiding obstructed labor, or improving outcomes for women who develop obstructed labor.
We urge the US to ensure that the structures of the JCPoA can remain intact, and to avoid taking action which obstructs its full implementation by all other parties to the deal.
They added, "We urge the U.S. to ensure that the structures of the J.C.P.O.A. can remain intact, and to avoid taking action which obstructs its full implementation by all other parties to the deal.
When the perforation diameter is 100 μm and the perforation pitch is 2 mm, the water transfer effect is the best which enhances the water discharge effectively and avoids the liquid droplets obstructing the gas flow channel at the same time.
