The McLean Citizens Association is considering a resolution that would urge officials to scrap a large part of the Dulles Corridor Metrorail Project, a proposal sparking sharp disagreements within a group that has consistently backed the rail extension.

Susan Turner, the group’s former president, put forth the resolution last week calling on officials to “reject the existing plan for construction of Phase I of the Silver line and to consider alternative plans which would be more effective in terms of both cost and traffic reduction.” The group agreed to put the resolution to further study.