Who decides how many vehicles can be in Hawaii

The council shall be responsible for limiting and curtailing the numbers and kinds of transportation units in the State. The council shall determine, as often as the council deems to be necessary or as required by the legislature, after consultation with the department of traffic and other appropriate departments of the counties, the number, size, and use of transportation units of any kind that may be within the territory of any island of the State at any one time. The council shall make its determination on the basis of preserving, safeguarding, and enhancing the physical and mental health of the residents of the State, and the ecology and environmental quality of the State, and shall take into consideration the need for high priority and vital movement of people and goods. The council shall report its findings to the legislature as soon as its findings are completed.