The purpose of this and the following sections is to describe the process for administering the concurrency ordinance. The capacity categories provided for in this chapter shall be established to allow capacity to be transferred to each category in the application process. Capacity refers to the ability or availability of road facilities to accommodate users, expressed in an appropriate unit of measure. Available capacity represents a specific amount of capacity that may be encumbered by, reserved by or committed to future users of road facilities. Capacity is withdrawn from the available capacity category and placed into the encumbered capacity category when a concurrency encumbrance letter is issued; transferred to the reserve capacity category when capacity is reserved; and transferred to the vested capacity category when a building permit is issued. (Ord. 2014 § 1 (Exh. A), 2009; Ord. 1946 § 4, 2005; Ord. 1654 § 2, 1996; Ord. 1633 § 1, 1996).