Test 5: Premovement time

1. Definition

Ten persons stand in a room of 8 m by 5 m with an exit 1 m wide in the middle of a 5 m wall. Their premovement times are drawn uniformly between 10 s and 100 s. The test verifies that each person starts moving at an appropriate time.

Source: RiMEA 4.1.1, Test 5, p. 30. 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

Each person starts moving at a time consistent with its premovement time, which lies between 10 s and 100 s. RiMEA gives no tolerance for ‘appropriate’ and sets no fixed pass limit (p. 28).

Our criterion: Agents respect assigned pre-movement delay

4. Our result

Status: PASS

Test cases of this row

• test_premovement_respected: bound: 9.9 <= measured <= 101.0; comparison: per-agent measured vs that agent's premovement sample (premovement_seed), max abs delta <= 0.5 s

Result figure from the executed notebook.

5. Our implementation

Deviations from the standard:

• The pass rule is the suite’s own: each agent’s observed start (the first frame with a displacement above 0.05 m from its spawn point) is within 0.5 s of that agent’s own sampled premovement time, and every start lies between 9.9 and 101 s.
• The test pairs agents with their draws by id order, because the runner assigns ids in spawn order and the scenario result does not expose per-agent premovement times.
• RiMEA does not fix where the persons start. The scenario file places them in a 6.6 m by 4.6 m area that covers most of the room, with a constant desired speed of 1.2 m/s, the default radius of 0.15 m and premovement seed 12345 (so the test can recompute each agent’s draw).
• The notebook loads the same scenario file but applies a different acceptance rule: a two-sample Kolmogorov-Smirnov test of the start times against the uniform distribution (alpha 0.05).

Model: CollisionFreeSpeedModel

• Test function: tests/vv/test_rimea.py::test_premovement_respected
• Scenario file: Rimea-05-premovement.zip

6. Our notebook

• Executed notebook (HTML)
• Notebook source (.ipynb) on GitHub