Which type of research report would be appropriate for the freeway project?

Periodic research reports would be appropriate for the freeway project.

Explanation:

A freeway project is a construction project that is worked upon on the freeway or a fast moving lane in the suburb or outer city.

This makes these constructions important and out of the eye of the city at the same time.

To regulate these types of constructions effectively, a periodic report will be beneficial as the officials can get the real picture of the construction t regular intervals and will be able to mark its progress along with the material used until the time, according to efficiency.