"road blockage" is correct and usable in written English.
You can use it to describe when a road is blocked off due to construction, an accident, or another situation. Example: The road blockage caused traffic delays for over an hour.
After a few days, I found a bus company that would take me to Cali, just north of the road blockage.
The latter half of the day saw the group split in two, some heading to Parliament Square while the majority spilled out onto Kingsway where they caused a severe road blockage.
□ I think repair of road blockage and transportation break are important.
Nagoya city has been evaluating the regional risks, e.g., road blockage probabilities, caused by future large-scale disasters such as Nankai Trough Earthquake [20].
The road blockage probability is an estimated probability that the corresponding road is blocked due to collapse of buildings along the road under a certain disaster.
As for the disaster scenario, we set part of roads to be blocked, i.e., red lines in Fig. 4, according to the road blockage probabilities.
XXXXXXXXXXXX On 7/28 protesters began road blockages and confrontations with the Peruvian National Police (PNP).
The worst affected areas are in the Highlands, Tayside and Argyll, with road blockages affecting work to restore the supply.
While the road blockages created traffic disruptions, life continued normally in most of Bangkok, a bustling city of 12 million.
Here in this city of ailing state enterprises, protests by workers demanding unpaid wages are so common that road blockages are announced on the morning news.
However, vehicles parked on the side of the road while people went sledging on the hills caused a build-up of traffic and road blockages.
