Test 8: Parameter study on a three-storey plan
PASS1. Definition
On the three-storey floor plan of Fig. 7, with four persons in each room, the total evacuation time is determined while one person parameter at a time is varied and the others stay at fixed standard values. Each parameter is varied twice: once equal for all persons (for example speed 0.5, 0.75 or 1.0 m/s) and once spread uniformly around a fixed mean (for example 0.5 to 1.0 m/s around 0.75 m/s). The results are recorded in graphs.
Source: RiMEA 4.1.1, Test 8, pp. 31-32, Fig. 7 (p. 32). This is a paraphrase, not the text of the standard.
Reference: RiMEA e.V. (2025). RiMEA: Richtlinie für Mikroskopische Entfluchtungsanalysen / Guideline for Microscopic Evacuation Analysis, version 4.1.1. https://rimea.de/ (Page numbers are the page numbers of the bilingual guideline (n / 56).)
2. Scenario
Scenario figure from the executed notebook.
3. What to expect
RiMEA gives no expected values: it asks for graphs of the total evacuation time against each parameter, to be published on the RiMEA homepage. RiMEA sets no fixed pass limit (p. 28).
Our criterion: Evacuation time varies with parameters
4. Our result
Status: PASS
Test cases of this row
| Case | Status | Result | Run |
|---|---|---|---|
test_ | PASS | evacuation_time_by_desired_speed = 74.75, 72.5, 67.85, 58.15 s | n = 120 · seed 42 |
test_ | PASS | evacuation_time_by_speed_distribution (s) constant_1.25: 72.5 uniform_1.00_1.50: 74.7 uniform_0.75_1.75: 78.25 | n = 120 · seed 42 |
test_: comparison over desired speeds [1.0, 1.25, 1.5, 2.0] m/s: evacuation time strictly decreases as speed increasesevacuation_ time_ decreases_ as_ speed_ increases test_: bound: |time(uniform) - time(constant 1.25 m/s)| < 30% of time(constant) for both uniform spreadsspeed_ distribution_ sensitivity
Result figure from the executed notebook.
Result figure from the executed notebook.
5. Our implementation
Deviations from the standard:
- The building has 3 floors with 10 rooms of 3 m by 3 m each (two rows of five along a corridor 2 m wide) and four persons per room, 120 agents in total. Fig. 7 has four rows of rooms per floor and more than 100 persons per floor.
- The stairs are flat boxes of 2 m by 3 m that join the floors, with no speed reduction. There is one exit at the end of the ground-floor corridor.
- Only the desired speed is varied. The constant values are 1.0, 1.25, 1.5 and 2.0 m/s, and the spread cases are uniform around 1.25 m/s with half-ranges of 0.25 and 0.5 m/s. RiMEA’s examples start at 0.5 m/s. Other parameters are not varied.
- The pass rule is the suite’s own: the evacuation time falls strictly as the constant speed rises, and each spread case is within 30 % of the constant 1.25 m/s run. The test writes no graphs. All runs use seed 42.
Model: CollisionFreeSpeedModel