2.1 Introduction

2.1.1             Purpose

This Building and Space Naming, Identification, Addressing, and Measurement Standard provides guidance for identifying Maryland Aviation Administration (MDOT MAA) owned, occupied, and/or managed properties so they can be uniquely and consistently referenced by personnel and information systems alike. The personnel who will use these identifiers include MDOT MAA staff, consultants, contractors, and emergency responders. This Standard establishes a consistent method for assigning location attributes to MDOT MAA properties, including building number, address, and unique identifiers for interior spaces. In addition, this Standard defines the methods by which interior spaces at MDOT MAA properties shall be measured for the purposes of including these spaces in MDOT MAA databases and computing space square footage. Unless otherwise noted, the implementation and enforcement of these standards is by the MDOT MAA Division of Planning and Engineering, Office of Geospatial and Asset Management.

2.1.2             Definitions

This Standard is comprised of five hierarchical levels that define locations within MDOT MAA owned and/or occupied properties. Each level is a more detailed breakdown of its preceding level. The hierarchical levels follow:

A.      Campus

B.      Building

C.       Section

D.      Level

E.       Unit

The first two levels, Campus and Building, define exterior locations. The Campus identifier is always either BWI or MTN, depending on whether the property is located at BWI Marshall or Martin State Airport. Buildings are assigned a building number and an address, as per Section 2.2 Addressing and Numbering Standard. The remaining levels define interior locations within a building. Standards for Section, Level, and Unit are all defined within Section 2.3 Interior Space Numbering. The Section level may refer to interior or exterior attributes depending upon the layout of the building. Level and Unit refer to interiors. Units include locations that are rooms (spaces with doors) and interior open spaces, such as concourses, holdrooms, or open stairwells.

For each of the five levels, this Standard defines identifiers to be assigned, along with any labeling and database considerations. This Standard covers the numbering and labeling of doors associated with spaces at MDOT MAA properties as well. This Standard also defines the procedures by which unique identifiers are to be assigned to MDOT MAA properties.