one of a system of access roads intended to advance the development of natural resources.
- 1958  It will be a development road, part of the government's "roads to resources" programme.
- 1958  From Marian Lake near Fort Rae a road now runs some 30 miles north to serve local mining developments, and this section of the road will become part of the development road system.
- 1966  Prince Edward county roads committee is preparing to call for tenders for the North Marysburgh development road.