To create a 3D model of our existing infrastructure, laser scanning for obtaining point cloud data is used. The laser scanner contains a rotating laser rangefinder which measures the distance between each reachable point in the building and the scanner. By continuously rotating the rangefinder by 360° in x/y+z axes, the laser scanner will become omnidirectional. Point cloud data is then collected at a particular reference point in the building. Figure 10 shows an example of point cloud data collected through laser scanning in Midfield Concourse.