21st February 2013
In response to several requests for confirmation from UK clients, Mosaic Software Development is pleased to confirm that RUIS is compliant with the HESA Higher Education Statistics Agency D45 frequency rate calculation and D46 occupancy rate calculation.
D45 Frequency Rate Calculation
This calculation examines the utilisation of teaching rooms from a time perspective. It is derived from the actual number of hours or periods that the room is used, divided by the total number of hours that each room is available for use. The product is expressed as a percentage. Therefore if a room is available for 40 hours in any given week, and it is actually used for 25 hours, the D45 frequency rate calculation for the room would be 25 / 40 = 62.5%.
This method of calculation is identical to the method that RUIS uses to calculate its room frequency factor statistic, which is a standard column on all room utilisation reports.
D46 Occupancy Rate Calculation
This calculation assesses the number of seats used in a room compared with the number of available seats. There is a common misconception that the calculation is derived from the number of seats used in any given week, divided by the sum of the number of seats in the room multiplied by the available hours. For example, using this method of calculation, if a room's total seat usage for a week was 160 seats, the capacity of the room was 20 seats, and the room was available for 40 hours, the calculation would be 160 / 800 (20 available seats x 40 hours ) = 20.0%
The actual method by which the D46 occupancy rate calculation should be derived is first to obtain the number of hours that the room is used in any given week, and multiply this number by the seating capacitye of the room, giving the total number of available seats. The actual number of seats used is then divided by the number of available seats, to give the D46 occupancy rate calculation. For example, if the room capacity is 20, and the number of used hours was 15, the total number of available seats would be 300. If 160 seats were used, the D46 occupancy rate calculation would be 160 / 300 = 53.3%
This is precisely the method used by RUIS to calculate its seat occupancy factor statistic, which is available in all space utilisation reports.
RUIS v2.3 Released