The phrase "a primary roadblock" is correct and usable in written English.
It can be used to describe a significant obstacle or challenge that hinders progress in a particular situation or project.
Example: "The lack of funding has become a primary roadblock in the development of the new initiative."
Alternatives: "a major obstacle" or "a key barrier".
Edison coach Pete Escandon says that Palacio's primary roadblock to a state title is mental.
The primary roadblock to a new Collective Bargaining Agreement (CBA) between NFL owners and players reared its ugly head again this week.
Mr. Kabila has been the primary roadblock to efforts to end the war, which involves a half dozen African nations, and has been uncooperative with both the United Nations and the Organization of African Unity.
Bradley said his primary roadblock to redemption had been — in stark contrast to Hamilton's approach — his refusal to kowtow to the news media for something as relatively benign as a wicked temper.
The primary roadblock to grid parity is not solar or wind technology itself, but the ability to store it so that consumers can rely on solar-produced power at night.
Despite a consensus among child advocates and experts that primary prevention is the best way to protect children from lead exposure, funding remains the primary roadblock for locating and remediating environmental lead contamination. .
This crippling, overwhelming, and ever-present judgment was something I hoped the course could help lessen, as it is the bane of my existence and primary roadblock to inner peace.
However, although overcoming biomass recalcitrance is the primary roadblock to low cost biofuels [ 1, 11], little is known about the susceptibility of structural carbohydrates in agave species to sugar release.
Conflict with humans remains the primary roadblock for large carnivore conservation, but for the eastern wolf (Canis lycaon), disagreement over its evolutionary origins presents a significant barrier to conservation in Canada and has impeded protection for grey wolves (Canis lupus) in the USA.
However, I believe a majority of MCDs would pay their fair share of taxes, but for the two primary roadblocks that are keeping them from full compliance: fear of prosecution by the federal government and a lack of access to banking and financial institutions.
