Test 15: Large crowd around a corner
PASS1. Definition
Three geometries, each 20 m wide with a start area of 20 m by 6 m, hold 500 persons; the same group of persons is used in each. The geometries are a straight route of 75.4 m (the longest), a straight route of 44 m (the shortest) and a route with a corner whose dimensions Fig. 19 gives (34 m leg, then a turning area 30 m wide). The time until all persons reach the target is compared, to show how much a corner changes the evacuation time.
Source: RiMEA 4.1.1, Test 15, pp. 45-46, Fig. 19. 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
Ideally the time for the corner geometry lies between the times for the 44 m and the 75.4 m straight routes. RiMEA sets no fixed pass limit (p. 28).
Our criterion: Corner slows evacuation vs a straight path
4. Our result
Status: PASS
Test cases of this row
| Case | Status | Result | Run |
|---|---|---|---|
test_ | PASS | evacuation_time_straight_vs_corner = 80.28, 183.9 s | n = 500 · seed 42 |
test_: bound: agents_remaining = 0 in both runs; comparison: evacuation_time(corner) > evacuation_time(straight)corner_ slower_ than_ straight
Result figure from the executed notebook.
5. Our implementation
Deviations from the standard:
- The test loads two of the three scenario files, the corner geometry (Rimea-15-large-crowd-corner-2.zip) and the shortest straight geometry (-3.zip, 50 m); it does not run the 81.4 m straight geometry (-1.zip). All three are 20 m wide with 500 agents, a constant desired speed of 1.2 m/s, the default radius of 0.15 m and one seed (42).
- The pass rule is the suite’s own: all agents evacuate and the corner geometry takes longer than the straight one. This is a different claim from RiMEA’s bracket between the shortest and the longest route.
- The notebook runs all three scenario files and checks the bracket.
Model: CollisionFreeSpeedModel
- Test function: tests/vv/test_rimea.py::test_corner_slower_than_straight
- Scenario file: Rimea-15-large-crowd-corner-2.zip
- Scenario file: Rimea-15-large-crowd-corner-3.zip