## Three factors are used to express the efficiency with which teaching accommodation is used.

**Room frequency:**

the proportion of the standard teaching week when rooms are in use.**Seat occupancy:**the proportion of the available seats or workplaces that are in use when rooms are occupied.**Space utilisation:**the used seat or workplace hours expressed as a proportion of available seat or workplace hours and calculated by the multiplication of the first two measurements of space efficiency.

Space efficiency has implications for used workplace income and total space requirements. Both factors impact directly on the financial viability of courses in colleges and universities.

The calculation of the three indices, based on a space utilisation survey, are indicated in the following table.

Building | Teaching Area | Rooms | Rooms in Use | RFF | Seats in Use | Capacity | Av. Rm Capacity | Av. Grp Size | SOF | SUF |
---|---|---|---|---|---|---|---|---|---|---|

A | 840 | 16 | 7 | 43.8% | 134 | 400 | 25.0 | 19.1 | 76.6% | 33.5% |

B | 1089 | 18 | 9 | 50.0% | 110 | 468 | 26.0 | 12.2 | 47.0% | 23.5% |

C | 1361 | 27 | 10 | 37.0% | 106 | 648 | 24.0 | 10.6 | 44.2% | 16.4% |

D | 952 | 18 | 9 | 50.5% | 88 | 414 | 23.0 | 9.8 | 42.5% | 21.3% |

E | 1856 | 36 | 15 | 41.7% | 180 | 755 | 21.0 | 12.0 | 57.2% | 23.8% |

F | 1586 | 15 | 7 | 46.7% | 77 | 540 | 36.0 | 11.0 | 30.6% | 14.3% |

G | 1650 | 18 | 7 | 38.9% | 130 | 563 | 31.3 | 18.6 | 59.4% | 23.1% |

H | 1685 | 18 | 6 | 33.3% | 90 | 580 | 32.2 | 15.0 | 46.6% | 15.5% |

11019 | 166 | 70 | 42.2% | 915 | 4368 | 26.3 | 13.1 | 49.7% | 21.0% |

The table provides the basis for the plotting of room frequency, seat occupancy and space utilisation levels.

FIGURE 1: THE RATIONALISATION OF CLASSROOMS IN A SAMPLE COLLEGE

The graph shows current average space efficiency levels. The data, adjusted if appropriate, provides the basis for space modelling.

Space efficiency has implications for used workplace costs and total space requirements. Both factors impact directly on the financial viability of courses and institutions.