The number one conflict in design is between steep seating (for good sightlines) and safe evacuation.
| Category | Required Item | Typical Value/Prescription | | :--- | :--- | :--- | | | C-value chart | Minimum 120mm recommended | | Acoustics | RT60 formula | 0.6 – 1.0 sec (furnished room) | | Seating | Row spacing diagram | 900mm minimum (back-to-back) | | Lighting | Contrast ratio | 3:1 (board to background) | | AV | Projector lumens | 10,000+ for >200 seats | | Egress | Exit width formula | 1.1m + 0.6m per 100 seats | | Access | Wheelchair sightline | 1.2m x 1.5m clear zone, 90cm eye level | | HVAC | NC rating | NC-25 or quieter |
Induction loops or IR (Infrared) assistive listening systems are required for students with hearing impairments.
Sightlines must be calculated to ensure that even the shortest student can see over the head of the person in front of them. 2.3 LECTURE THEATRES - Faculty of Science and Technology
“Store-bought pickle in an agrahara ?” “That’s not aachar —that’s a product.” “What’s next? Frozen dosa batter?”
"University of Queensland Lecture Theatre Design Standards" or "MIT Classroom Design Guidelines" – these are public university documents often available as direct PDFs. Example:
