Studies authorized by the Davis School Board Tuesday to address growth in junior high and high schools:

- Maximizing space. Committee will look at better use of space in both junior high and high schools. Recommendations scheduled to be implemented in August.- Open enrollment. Committee will study allowing students at north Davis high schools to attend Bountiful and Woods Cross High Schools. Findings will be presented to board on Feb. 21. The district could begin enrolling north Davis students in April for fall classes.

- Davis Area Vocational Center Magnet School. Committee will look at providing training at the center in "cluster occupations" such as science and health. Findings will be presented to the board April 18. Pilot program could begin in January 1990.

- Boundary changes. Committee will look at population inequity between Mueller Park and South Davis Junior High Schools and consider boundary changes in all adjacent junior high schools. Recommendations are due in July and a final decision will be made in November. Changes will take effect in fall of 1990 with seventh- and eighth-graders. The board expects to authorize boundary change study for high schools in May.

- Early completion. A committee would study allowing students to leave high school early after attending summer classes. A feasibility study is to be completed April 18 and a final report in August. The program could begin in June 1990.

- Schedule and curriculum changes. A committee will examine changes in junior high school schedules in the Layton area. They will also examine changing or eliminating some specialized classes like home economics or shop that could provide more space for classrooms. The study is to be completed in June. Final decision will be made in October. The plan should be implemented in August 1990.